A protection cage (2) for handling a fitting (4) on a subsea cable (6), the subsea cable (6) extending along an axis. The protection cage having a frame (8, 10, 12), the frame being able to be opened and closed to surround the fitting. The protection cage is configured to support the fitting therewithin, and is configured to allow rotation of the fitting (4) and cable (6) around the axis. A power cable comprising a fitting (4) and such a protection cage (2), wherein the protection cage (2) is surrounding and supporting the fitting (4). A protection assembly (40) comprising the protection cage (2) and a deck-support (42), the deck-support being moveable.
H02G 1/10 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle in or under water
A cable reel configured to spool a subsea cable end (2) and supported fitting (4) onto the cable reel (6) is disclosed. The cable reel (6) comprises a first engagement means (110), said first engagement means (110) being complementary to a second engagement means (120), on the subsea cable end (2) or on the fitting (4) or on both. An assembly and a method of spooling a subsea cable end (2) and supported fitting (4) onto a cable reel (6) are also disclosed. The method comprises providing a first engagement means (110) on the cable reel (6); providing a second engagement means (120), being complementary with the first engagement means (110), on the subsea cable end (2) or on the fitting (4) or on both; and rotating the cable reel to automatically engage the first engagement means (110) and the second engagement means (120) to spool the subsea cable end (2) and fitting (4) onto the cable reel (6).
H02G 1/10 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle in or under water
A method of moving a subsea cable end (2) and supported fitting (4) on a vessel deck (30) between an onboarding position and an on-board cable-holding position. The method comprises locating the subsea cable end (2) with a protection cage (40) on a deck-support (20); and moving the protection cage (40) and deck-support (20) around the vessel deck (30) to the on-board cable-holding position.
H02G 1/10 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle in or under water
A mooring line (200) comprising a first section (210) for being in an inverse catenary shape under the seabed (20) when installed is disclosed. The mooring line (200) comprises one or more plates (300) connected to the first section (210) of the mooring line (200), the one or more plates (300) comprise a surface area (310) configured for providing a resisting force in a direction perpendicular to the mooring line (200) for keeping the first section (210) in the inverse catenary shape when axial pulling force is applied to the mooring line. A mooring system for an offshore structure (10) is disclosed. The system comprises an anchor member (100) at least partly embedded in the seabed (20) and the mooring line (200). The mooring line (200) further comprises a second section (220) for being subsea, the mooring line (200) extending from the offshore structure (10) to a part of the anchor member (100) embedded in the seabed (20), wherein the one or more plates (300) are connected under the seabed to the first section (210) of the mooring line (200) and are configured to keep the mooring line (200) in an inverse catenary shape.
Disclosed is a system and method of barrier testing a subsea system (300) for carbon dioxide injection to a subterrain reservoir (400) with a main injection line (200). The system comprises a fluid line (330) between a set of two or more barrier valves (310, 320); at least one pressure monitoring device (380); a main injection line (200) configured for injecting carbon dioxide; and a test line (100) for injecting an inert gas. The method comprises pressurising (610) the inert gas in the test line (100); opening (620) a test valve (110); flushing (630) out any fluid in the fluid line (330); closing (640) the downstream barrier valve (310), the upstream barrier valve (320), and an injection valve (210); opening (650) the test valve (110) and injecting the inert gas to a predetermined pressure in the fluid line (330) using the test line (100); and keeping (660) the predetermined pressure for a predetermined period of time and checking the at least one pressure monitoring device (380) to detect any pressure changes.
E21B 47/117 - Detecting leaks, e.g. from tubing, by pressure testing
E21B 34/02 - Valve arrangements for boreholes or wells in well heads
G01M 3/00 - Investigating fluid tightness of structures
G01M 3/28 - Investigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables, or tubesInvestigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipe joints or sealsInvestigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for valves
E21B 41/00 - Equipment or details not covered by groups
E21B 33/035 - Well headsSetting-up thereof specially adapted for underwater installations
6.
SYSTEM AND METHOD FOR LAYING A FLEXIBLE SUBSEA POWER CABLE
Disclosed is a system for laying a flexible subsea power cable (20) in a sea, the cable comprising at least one fitting (16) to at least one end of the cable. The system comprises a tower (10) mountable on a deck (12) of a vessel (14), the tower comprising a firing line (34) for laying the cable; an arcuate guide (22) for the cable, the arcuate guide being rotatable around an axis (24) on the tower; a first handling arm (26), the first handling arm being rotatable around the axis, configured to hold the cable, and configured to move the fitting along a path outside of the arcuate guide; and a tensioner (30) for the cable, the tensioner being movable in and out of the firing line. The system comprises a second handling arm (40), the second handling arm being configured to position the cable to allow the tensioner to move into the firing line around the cable by guiding the cable end further away from the arcuate guide than the first handling arm.
H02G 1/10 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle in or under water
H02G 9/02 - Installations of electric cables or lines in or on the ground or water laid directly in or on the ground, river-bed or sea-bottomCoverings therefor, e.g. tile
H02G 11/00 - Arrangements of electric cables or lines between relatively-movable parts
7.
POWER CABLE GUIDE MEANS, SYSTEM AND METHOD WITH THE SAME
A power cable guide means end piece (100) for an offshore structure power cable guide means (20), the guide means (20) being securable to the offshore structure (10) and configured to guide a power cable (30) from a body of water (40) to a position to be connected to the offshore structure (10), is disclosed. The power cable guide means end piece (100) being elongate and having an upper end (110) that is part of or secured to the guide means (20), and a free end (120) for receiving the power cable (30) from the body of water (40). The power cable guide means end piece (100) has at least a flexible portion (130) which is increasingly flexible in a longitudinal direction towards the free end (120), and that the internal diameter of the flexible portion (130) is greater at the free end (120) than at the upper end (110).
H02G 1/10 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle in or under water
E21B 7/128 - Underwater drilling from floating support with independent underwater anchored guide base
A hang-off system for a bend controller for an elongate element (10) extending from subsea from a body of water up to an offshore structure (20) is disclosed. The hang-off system comprises a bend controller (100) for controlling how much the elongate element (10) can bend; and a hang-off (200) for hanging off the bend controller (100) at an installed production position for the elongate element (10). The bend controller (100) is adjustably attached to the hang-off (200) by a plurality of adjustment elements (400), each adjustment element (400) being configured for at least one of: independently adjust flexibility, setting an amount of flexible (force) resistance of a movement of the bend controller (100) relative to the hang-off (200); and independently adjust and set a fixed distance between the bend controller (100) and the hang-off (200). A method of using the hang-off system is also disclosed.
H02G 1/10 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle in or under water
H02G 9/12 - Installations of electric cables or lines in or on the ground or water supported on or from floating structures, e.g. in water
E02B 17/00 - Artificial islands mounted on piles or like supports, e.g. platforms on raisable legsConstruction methods therefor
9.
SYSTEM AND METHOD TO DETACHABLY ARRANGE EQUIPMENT ONTO A FLOATING RENEWABLE ENERGY STRUCTURE
A system to detachably arrange equipment (20) onto a floating renewable energy structure (10). The system comprising a first unit (100) attachable to a periphery of the structure (10) and configured for receiving a second unit (200) on a landing base (110) of the first unit (100); and the second unit (200) comprising a base (210) for the equipment (20) and the equipment (20); the first unit (100) and the second unit (200) being connectable to each other by a connection system. The connection system comprises a female connector (120) on one unit (100, 200) and a male connector (220) on the other unit (200, 100), respectively; and first and second alignment means (310, 320, 330, 340) on each unit (100, 200); and a fixing mechanism (500) for releasably locking the first unit (100) with the second unit (200).
A method of handling a power cable (10) on a vessel (18), the method comprising the following steps in any order: pulling (520) an end part (12) of the power cable (10) onto the vessel (18) from a first area (20) next to a first side (30) of the vessel (18); and guiding (530) the end part (12) of the power cable (10) across and overboard the vessel (18) to a second area (22) next to a second side (32) of the vessel (18), the second side (32) being opposite the first side (30) of the vessel (18). A vessel for handling a power cable (10), comprising a handling system (100) for the power cable (10), the handling system (100) comprising a first guide (110) positioned at a first side (30) of the vessel (18); and a lifting device (200) for handling the power cable (10); wherein the vessel (18) comprises a second guide (300) for handling the power cable (10), the second guide (300) being movable towards and away in relation to the handling system (100), and movable in an away position where the power cable (10) can be guided overboard the vessel (18) at a second side (32) of the vessel (18), the second side (32) being opposite the first side (30) of the vessel (18); and wherein the first guide (110) and the second guide (300) are configured for guiding the power cable (10) across the vessel (18) from overboard the first side (30) of the vessel (18) to overboard the second side (32) of the vessel (18).
H02G 1/10 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle in or under water
H02G 9/02 - Installations of electric cables or lines in or on the ground or water laid directly in or on the ground, river-bed or sea-bottomCoverings therefor, e.g. tile
A subsea power transmission cable comprising at least one electrical conductor, said electrical conductor comprising a plurality of strands, the cable further comprising at least one conducting screen, wherein the or each conducting screen comprises two or more overlapping helical tape windings, and wherein the at least one conducting screen is covered on both sides by slip windings.
There is provided an offshore system comprising a floating assembly and a subsea power transmission cable connected to the floating assembly, for onward transmission of the power generated. The subsea power transmission cable comprises at least one electrical conductor, said electrical conductor comprising a plurality of strands, wherein: the cable further comprises at least one conducting screen, wherein the or each conducting screen comprises two or more overlapping helical windings, and wherein the at least one conducting screen is covered on both sides by slip windings; and/or the plurality of strands are a plurality of helical strands having interstices thereinbetween, wherein the interstices are partly, substantially or wholly filled with a filler material.
A subsea power transmission cable comprising at least one electrical conductor, said electrical conductor comprising a plurality of helical strands having interstices thereinbetween, wherein the interstices are partly, substantially or wholly filled with a friction-reducing filler material.
A method of handling a flexible subsea power cable (10) for an offshore installation, the cable comprising two end sections (11) and a fitting (12) on at least one end section (11), the method comprising at least the following steps in order; (i) wet-parking the entire cable (10) to a first wet-parking position flat on a seabed (17); (ii) recovering one end section (11) of the cable (10) onto a vessel deck (28); (iii) adding one or more elements (14) to one or more parts of the end section (11) of the cable (10); and (iv) returning the cable (10) to a second wet-parking position with at least a part of the one end section (11) including the one or more elements being above the seabed (17).
H02G 1/10 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle in or under water
H02G 9/12 - Installations of electric cables or lines in or on the ground or water supported on or from floating structures, e.g. in water
H02G 9/02 - Installations of electric cables or lines in or on the ground or water laid directly in or on the ground, river-bed or sea-bottomCoverings therefor, e.g. tile
15.
SYSTEM AND METHOD FOR FLOATING STRUCTURE AND POWER CABLE
A system comprising a renewable power floating structure (1) arranged in a body of water, and a power cable (4) extending from the floating structure (1) into the body of water and along the seabed (3). The power cable (4) extends from the floating structure (1) for a first portion (41) of its length, extends in a catenary shape to an imparting element (6) providing buoyancy to the power cable (4) and a second portion (42) of the power cable (4) extends from the imparting element (6) to a tethered point (7) of the power cable connected to the seabed (3) and a third portion (43) of the power cable (4) extends from the anchored point (7) to a touch down point (10) of the power cable (4) where the power cable (4) is laying on the seabed (3). That the second portion (42) is forming a curved configuration of concavity down turned towards the seabed (3) and the power cable continuing this curvature in the third portion (43) of the power cable (4) to the touch down point (10) of the power cable (4) when projected in a vertical plane comprising a first portion connection point (5) to the structure (1) and the anchored point (7) of the power cable (4).
H02G 9/12 - Installations of electric cables or lines in or on the ground or water supported on or from floating structures, e.g. in water
H02G 1/10 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle in or under water
B63B 21/50 - Anchoring arrangements for special vessels, e.g. for floating drilling platforms or dredgers
16.
SYSTEM AND METHOD FOR INCREASING SERVICE LIFE OF A POWER CABLE
A system and corresponding method for increasing a service life of a power cable (10) attached to an offshore structure (100). The system comprises a guide unit (102) for guiding a power cable (10) from a body of water to the offshore structure (100) such that the power cable (10) is in a position to be electrically connected to the offshore structure (100), the power cable having a first portion of length arranged mainly vertically along the offshore structure (100), and a second portion of length deviating out from the offshore structure (100) to extend through the body of water. A transition area between the first and second portions of length defines a main fatigue region (104); and the guide unit (102) further comprises a part engageable with the transition area of the power cable (10).
H02G 1/10 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle in or under water
H02G 11/00 - Arrangements of electric cables or lines between relatively-movable parts
E02B 17/00 - Artificial islands mounted on piles or like supports, e.g. platforms on raisable legsConstruction methods therefor
17.
SYSTEM AND METHOD FOR TRANSFERRING AN END OF A POWER CABLE
A method for transferring a first end (12) of a power cable (10) from a floating vessel (520) to an offshore structure (100) such that the first end (12) remains above sea level (40), and a system therefore. The system comprises a floating vessel (520); an offshore structure (100) positioned in the vicinity of the vessel (520); and a transfer apparatus (500) comprising a zip line arrangement comprising a zip line (540) extending between a first connection (501) positioned on the offshore structure (100), to a second connection (502) positioned on the floating vessel (520). A cable mounting device (550) is positioned on the zip line (540) and configured to receive a first end (12) of a power cable (10). The cable mounting device (550) is moveable along the zip line (540) for the transfer, above sea level (40), of the first end (12) of the power cable (10) between the floating vessel (520) and the offshore structure (100). The method comprises providing the system; providing the first end (12) of the power cable (10) at the vessel (520); attaching the first end (12) of the power cable (10) to the cable mounting device (550); and moving the first end (12) of the power cable (10) from the vessel (520) to the offshore structure (100).
H02G 1/10 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle in or under water
B63B 27/32 - Arrangement of ship-based loading or unloading equipment for cargo or passengers for transfer at sea between ships or between ships and off-shore structures using cableways
H02G 9/00 - Installations of electric cables or lines in or on the ground or water
E02B 17/00 - Artificial islands mounted on piles or like supports, e.g. platforms on raisable legsConstruction methods therefor
A system and corresponding method for connecting a power cable (10) to an offshore structure (100) is provided. The offshore structure comprises a routing unit (102) for the power cable (10) such that the power cable is protected and in a position to be electrically connected to the offshore structure (100). The routing unit (102) is movably attached to the offshore structure (100) between at least two positions relative to the offshore structure. Furthermore, the system comprises an actuator (300) adapted to selectively move the routing unit (102) between at least two positions relative to the offshore structure. The at least two positions comprise a first position, in which the routing unit is completely above sea level (40) and a relative lower end of the routing unit is accessible from the offshore structure (100); and a second position, relatively lower than the first position, in which the lower end of the routing unit (102) is in a normal installed position relative the offshore structure (100).
B63B 27/32 - Arrangement of ship-based loading or unloading equipment for cargo or passengers for transfer at sea between ships or between ships and off-shore structures using cableways
H02G 1/10 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle in or under water
E02B 17/00 - Artificial islands mounted on piles or like supports, e.g. platforms on raisable legsConstruction methods therefor
H02G 9/00 - Installations of electric cables or lines in or on the ground or water
Burner system for a radiant section of a steam cracking furnace configured to provide heat to the radiant section, the burner system including a fuel inlet and an oxidant inlet, and further comprising an ejector block arranged located within the radiant section and to receive a propellant and a propelled fluid and arranged to premix said propellant with said propelled fluid.
F23D 14/64 - Mixing devicesMixing tubes with injectors
C10G 9/36 - Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils by direct contact with inert preheated fluids, e.g. with molten metals or salts with heated gases or vapours
F23C 9/08 - Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for reducing temperature in combustion chamber, e.g. for protecting walls of combustion chamber
F23L 7/00 - Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
20.
SYSTEM AND METHOD FOR BARRIER TESTING INJECTION XMAS TREE
A system for barrier testing of a Xmas tree injection system (300) is disclosed. The Xmas tree is subsea and comprises a fluid line (330) between a set of two or more barrier valves (310, 320), one of the barrier valves of the set of two barrier valves being an upstream barrier valve (320) closer to a reservoir (400) and the other barrier valve being a downstream barrier valve (310) closer to an environment; and at least one pressure monitoring devices (180, 380) each in the fluid line (330) and downstream of the downstream barrier valve (310). The system is configured to provide fluid at different test pressures to the fluid line (330) between the downstream barrier valve (310) and the upstream barrier valve (320). The system comprises a first fluid connection line (101) from a main injection line (250) to a pressure increasing unit (170), with one or more valves (110, 120) positioned in the first connection line (101); and a second fluid connection line (102) from the pressure increasing unit (170) to a first connection point (332) on the fluid line (330) between the downstream barrier valve (310) and the upstream barrier valve (320), with one or more valves (150, 160) positioned in the second fluid connection line (102). A method for barrier testing with the system is also disclosed. The method comprises closing the downstream barrier valve (310) and the upstream barrier valve (320); increasing pressure, or decreasing pressure, in the fluid line (330) between the downstream barrier valve (310) and the upstream barrier valve (320) using the pressure increasing unit (170), the pressure increasing unit (170) using fluid from the main injection line (250); and keeping the increased pressure, or in the decreased pressure, for a predetermined time period and check at least one of the pressure monitoring devices (180, 380) to detect pressure changes.
42 - Scientific, technological and industrial services, research and design
Goods & Services
Engineering services; engineering information, advisory and
consultancy services; engineering computer services;
engineering design services; engineering design verification
services; engineering project management services;
engineering feasibility studies; all of the aforesaid
services in relation to oil and gas and water field
exploration, development, extraction, exploitation,
production, storage and transportation; electronic
monitoring services in respect of oil and gas field
equipment.
42 - Scientific, technological and industrial services, research and design
Goods & Services
Engineering services; engineering information, advisory and consultancy services; engineering computer services, namely, computer-aided engineering services for others; engineering design services; engineering design services, namely, engineering design verification services; engineering services, namely, engineering project management services; engineering feasibility studies, namely, conducting feasibility studies in the field of engineering; all of the aforesaid services in relation to oil and gas and water field exploration, development, extraction, exploitation, production, storage and transportation; electronic monitoring of oil and gas field equipment to ensure proper functioning
06 - Common metals and ores; objects made of metal
37 - Construction and mining; installation and repair services
Goods & Services
Unwrought and semi-wrought base metals and their alloys; anchors, anvils, church bells, rolled and cast building materials, rails and other metal materials for railways; chains (excluding vehicle drive chains); non-electric metal cables and wires; metal pipes; safes and cash boxes; steel balls; nails and screws; ores; Metal pipes, (not including any boiler tubes or parts of machines); Rolled and cast metal building materials. Construction and building repair; Contracting, namely construction services.
09 - Scientific and electric apparatus and instruments
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Parts of machines for drilling surface and subsea wells and
controlling the flow of fluids into and out of surface and
subsea wells, namely, christmas trees, wellheads, manifolds,
risers, and flow control valves (term considered too vague
by the International Bureau - Rule 13 (2) (b) of the
Regulations); workover control equipment for surface and
subsea wells (term considered too vague by the International
Bureau - Rule 13 (2) (b) of the Regulations); riserless and
riser-based well access equipment (term considered too vague
by the International Bureau - Rule 13 (2) (b) of the
Regulations); landing strings for the installation,
workover, intervention and operation of subsea well system
components; power operated tools for the installation,
workover, intervention and operation of well system
components; pumps; power operated valve actuators; flow
control valves. Christmas trees in the nature of an assembly of valves,
spools, and fittings for controlling the flow of fluids into
and out of surface and subsea wells (term considered too
vague by the International Bureau - Rule 13 (2) (b) of the
Regulations); electric control valves for regulating the
flow of fluids; electric valve actuators; electric actuators
for well drilling, workover, intervention and production
system components and well fluid production, processing and
transportation system components; electrical controllers;
electric controls for well drilling, workover, intervention
and production systems and system components and well fluid
production, processing and transportation systems and system
components; wireless controllers for remotely monitoring and
controlling the function and status of other electrical,
electronic, and mechanical devices or systems, namely, well
drilling, workover, intervention and production systems and
well fluid production, processing and transportation
systems; electrical integrated control systems for use in
the fields of well drilling, workover, intervention and
production and well fluid production, processing and
transportation; electric control panels; electric
installations for the remote control of industrial
operations; recorded and downloadable software for the
automation of well drilling, workover, intervention and
production systems and system components and well fluid
production, processing and transportation systems and system
components; monitoring systems for well drilling, workover,
intervention and production systems and system components
and well fluid production, processing and transportation
systems and system components; remote monitoring and data
access systems for well drilling, workover, intervention and
production systems and system components and well fluid
production, processing and transportation systems and system
components; power actuated connectors and couplings for well
drilling, workover, intervention and production system
components and well fluid production, processing and
transportation system components. Installation, maintenance and repair of well drilling,
workover, intervention and production systems and system
components and well fluid production, processing and
transportation systems and system components; consulting
services, namely, consulting services, namely, technical
consulting services concerning the installation, maintenance
and repair of well drilling, workover, intervention and
production systems and system components and well fluid
production, processing and transportation systems and system
components; providing technical support, namely, technical
advice concerning the installation, operation maintenance
and repair of well drilling, workover, intervention and
production systems and system components and well fluid
production, processing and transportation systems and system
components. Monitoring services for well drilling, workover,
intervention and production systems and system components
and well fluid production, processing and transportation
systems and system components; design and engineering of
integrated systems for oil, gas, injection and carbon
sequestration wells; design and engineering of well
drilling, workover, intervention and production systems and
system components and well fluid production, processing and
transportation systems and system components; inspection and
testing of well drilling, workover, intervention and
production systems and system components and well fluid
production, processing and transportation systems and system
components; research and development of well drilling,
workover, intervention and production systems and system
components and well fluid production, processing and
transportation systems and system components; consulting
services, namely, technical consulting services in the field
of subsea engineering; oil field services, namely, operation
and servicing of well drilling, workover, intervention and
production systems and system components and well fluid
production, processing and transportation systems and system
components; technical consulting services in the field of
surface and subsea engineering.
25.
METHOD FOR PRODUCING LIQUEFIED NATURAL GAS FROM NATURAL GAS, AND CORRESPONDING PLANT
A method for producing LNG (12) from natural gas (14), comprising the following steps: - liquefying at a least first portion (19) of the natural gas (14) in a first heat exchanger (18) by heat exchange with a mixed first refrigerant (44) in a closed cycle (42), - subcooling the liquefied natural gas (22) in a second heat exchanger (20) by heat exchange with a second refrigerant (62) of a second refrigerant cycle (60), - expanding the stream of subcooled liquefied natural gas (26) and entering into a flash gas separator (32), - withdrawing liquefied natural gas at the bottom of the separator, and withdrawing, at the top, a gas flow (34), and supplying the second refrigerant cycle (60) with at least one portion of said gas flow.
F25J 1/00 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
F25J 1/02 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen
26.
A PROCESS FOR PRODUCING A HYDROGEN-COMPRISING PRODUCT GAS FROM A HYDROCARBON
The invention relates to a hydrogen plant for producing a hydrogen-comprising gas product comprising - a reformer system comprising at least one heat-recuperating reformer reaction unit (5) or a reformer system comprising two or more reformer units (5,22) in parallel, wherein at least one of said parallel reformer units (5) is present in the radiant section (12) of the reformer system, and at least one reformer unit (22) is located outside the radiant section (12) of the reformer system; - a unit (8) configured to obtain hydrogen product gas; - a carbon dioxide capture unit; the hydrogen plant further comprising a passage way configured to feed a hydrogen-comprising gas stream to the radiant section. The invention further relates to a process for producing a hydrogen-comprising gas product.
C01B 3/38 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts
C01B 3/48 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents followed by reaction of water vapour with carbon monoxide
B01J 8/00 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes
27.
METHOD FOR EXTRACTING ETHANE FROM AN INITIAL NATURAL GAS STREAM AND CORRESPONDING PLANT
This method comprises the following steps: - recovering and compressing a top stream (98) from a separating column (34) in order to form a compressed purified natural gas stream (102); - liquefying the compressed purified natural gas stream (102) in a liquefaction unit (24) in order to form a stream (120) of pressurized liquefied natural gas; - flash expansion of the pressurized liquefied natural gas stream (120) and recovery in a storage tank (66); - recovery and compression of a flash gas stream (126) resulting from the expansion; - separating the compressed flash gas stream (132) into a fuel stream (20) and into a recycle stream (134); - cooling and expansion of the recycle stream (134), then introducing the cooled and expanded recycle stream at a top stage of the separating column (34).
The system (10) comprises a centralisation and interface module (40) capable of interconnecting a module for dynamically simulating the method (30) and an immersive simulation module (32) for enabling an operator (36) or/a robot to perform, in real time in an immersive three-dimensional representation, a virtualised implementation of an industrial method comprising actions performed in the immersive three-dimensional representation. It comprises a module (42) for monitoring the implementation of the method, the module being capable of recording monitoring data including operating parameters of the method and/or real-time actions of the operator (36) and/or the robot, and a rendering module (44) capable of processing the obtained monitoring data and providing a rendering of the virtual implementation of the method, the rendering being designed to control or optimise the industrial method.
The method comprises supplying, at a construction site, of a functional module comprising a hybrid cooler; verifying onsite the exploitation of the equipment of the functional module; mounting the functional module on a support structure; moving the structure to an exploitation site on the expanse of water. The verification involves passing a flow to be cooled through the air cooler of the hybrid cooler, the flow being cooled exclusively by a flow of air circulating through the air cooler of the hybrid cooler. The exploitation of hydrocarbons on the expanse of water involves the passage of a flow to be cooled through the water cooler of the hybrid cooling system, the flow being cooled by heat exchange with water taken from the expanse of water circulating through the water cooler.
F25J 1/00 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
E21B 43/01 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
F25J 1/02 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen
30.
Method for determining the free volume of an annular space of a flexible pipe and associated system
A method that consists of the following steps: depressuring and isolating the annular space; recording a first pressure and temperature prevailing in the annular space; injecting a given amount of a measuring gas into the annular space and isolating the annular space, the annular space remaining under negative pressure after the injection and isolation; measuring the given amount of measuring gas; recording a second pressure in the annular space after the isolation of the annular space; and determining the free volume of the annular space on the basis of the first pressure, the second pressure, the temperature, and the measurement of the given amount of measuring gas.
G01M 3/28 - Investigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables, or tubesInvestigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipe joints or sealsInvestigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for valves
31.
A SHELL-AND-TUBE HEAT EXCHANGER, METHOD OF EXCHANGING HEAT AND USE OF HEAT EXCHANGER
Aspects of the present invention relate to a shell-and-tube heat exchanger (101), a method of using said heat exchanger, and to a hydrocarbon cracking furnace system comprising said heat exchanger. The shell-and-tube heat exchanger comprises at least: a spiral baffle (7) arranged to provide a helical flow path through the shell body (103) and an outlet collector pipe (4) that supports the spiral baffle and that extends substantially coaxially within the shell body, wherein the outlet collector pipe is mounted to and passes through a second tubesheet (106) bordering the shell body (103) on one terminal end, and wherein the outlet collector pipe (4) is separated from a first tubesheet (105) on the opposing terminal end by a gap that allows a shell-side fluid (F2) to exit the shell body (103).
F28D 7/12 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically the surrounding tube being closed at one end, i.e. return type
F28D 7/16 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
F28D 21/00 - Heat-exchange apparatus not covered by any of the groups
F28F 9/22 - Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
32.
METHOD FOR INSTALLING AT LEAST ONE MOORING LINE OF A FLOATING INSTALLATION IN A BODY OF WATER AND ASSOCIATED FLOATING INSTALLATION
This method comprises the following steps: - arranging at least one lower section (38) of a mooring line in the ground (14) at the bottom (26) of the body of water (12); - trapping the lower section (38) in the ground (14); - connecting an upper assembly of the floating installation to the mooring line. The lower section (38) is constituted by a chain, the chain defining, after the connection of the upper assembly, a lower end of the mooring line not provided with a mooring point pre-mounted on the mooring line, in particular an anchor or pile.
The method includes cooling and liquefying a feed gas stream, separating a stream obtained from the feed gas stream, and recovering a treated gas stream and a natural gas liquid stream. The method further includes compressing the treated gas stream in order to form a compressed treated gas stream, and fractionating the natural gas liquid stream into a plurality of hydrocarbon fractions (28, 30, 32, 33). The method additionally includes withdrawing from the compressed treated gas stream, of a recycle stream, and reintroducing the recycle stream without cooling into the feed gas stream, into the cooled feed gas stream, or into a stream obtained from the cooled feed gas stream upstream of an expander.
F25J 3/02 - Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
06 - Common metals and ores; objects made of metal
11 - Environmental control apparatus
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Structures and system components of metal for use in the
production and storage of renewable and transition energy,
including wind, wave, solar and hydrogen energy; fixed and
floating offshore platforms made primarily of metal; metal
pipes, tubulars, flowlines and pipelines; flexible pipes
comprising primarily metal parts. Offshore and subsea systems and system components for the
production and storage of renewable and transition energy,
including wind, wave, solar and hydrogen energy; solar
collectors; solar energy receivers; solar reactors; wave
energy conversion systems; wave energy harvesting systems;
hydrogen generators. Construction, installation, maintenance and repair of
renewable energy generation and storage systems and
ancillary structures and equipment; construction project
management services in the field of renewable energy
generation and storage systems and ancillary structures and
equipment; construction, installation, maintenance and
repair of fixed and floating platforms; construction,
installation, maintenance and repair of pipelines. Technical consulting services in the field of renewable
energy; engineering of renewable energy generation systems
and ancillary structures and equipment; research and
development of renewable energy generation systems and
ancillary structures and equipment.
The invention relates to an ethylene plant, comprising - a cracking furnace for converting a hydrocarbon feedstock into a cracked gas stream; - a separation section to provide at least an ethylene-enriched product stream, a hydrogen-enriched fuel stream and a methane-enriched fuel stream from the cracked gas stream; - a passage way for feeding at least part of the hydrogen-enriched fuel from the separation section to a burner of the cracking furnace and/or a passage way for feeding at least part of the hydrogen-enriched fuel from the separation section to a burner of a waste heat recovery boiler of a combined cycle gas turbine power plant(CCGT); - a methane storage configured for storing methane-enriched fuel and a passage way for feeding at least part of the methane-enriched fuel from the separation section to the storage; - the CCGT, comprising a gas turbine - comprising a combustor - and a passage way for feeding at least part of the methane-enriched fuel from the storage to the combustor of the gas turbine of the CCGT, which CCGT is configured to generate electric power and/or to generate high pressure steam to drive a steam turbine forming part of a steam generation circuit of the ethylene plant; and - an electric power connection for providing part of the power for operating the plant, which is a connection to an electric power system to produce electric power from a renewable source.
C10G 9/36 - Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils by direct contact with inert preheated fluids, e.g. with molten metals or salts with heated gases or vapours
F01K 13/00 - General layout or general methods of operation, of complete steam engine plants
36.
FLAMELESS COMBUSTION BURNER FOR AN ENDOTHERMIC REACTION PROCESS
The present invention relates to a combustion heater (100) for providing controlled heat (H) to an endothermic reaction process. The combustion heater comprises an integrated burner (20) to yield a hot burner exhaust gas (35) flow from burning a first fuel. The burner exhaust gas mixed with oxidant flows to a flue gas outlet along a flue gas flow path (FGP). Provided to the combustion chamber at a position outside a direct reach of flames from the burner is a secondary fuel conduit (30) with a plurality of nozzles (31) from which a second fuel (32) is transferred into a flow along the said flue gas flow path (FGP). The resulting combustion of the second fuel can be used to provide controlled heat to the to endothermic reaction operated in a reaction conduit (40) that is in thermal heat exchange with the combustion chamber.
F23C 6/04 - Combustion apparatus characterised by the combination of two or more combustion chambers in series connection
C01B 3/38 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts
B01J 8/06 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with stationary particles, e.g. in fixed beds in tube reactorsChemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with stationary particles, e.g. in fixed beds the solid particles being arranged in tubes
B01J 19/00 - Chemical, physical or physico-chemical processes in generalTheir relevant apparatus
09 - Scientific and electric apparatus and instruments
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
parts of machines for drilling surface and subsea wells and controlling the flow of fluids into and out of surface and subsea wells, namely, christmas trees, wellheads, manifolds, risers, and flow control valves; parts of machines, namely, workover control equipment for surface and subsea wells; parts of machines, namely, riserless and riser-based well access equipment; parts of machines, namely, landing strings for the installation, workover, intervention and operation of subsea well system components; power operated tools for the installation, workover, intervention and operation of well system components; parts of machines, namely, pumps; power operated pneumatic and hydraulic valve actuators; flow control valves being parts of machines; parts of machines, namely, power actuated connectors and couplings for well drilling, workover, intervention and production system components and well fluid production, processing and transportation system components christmas trees in the nature of an assembly of valves, spools, and fittings for controlling the flow of fluids into and out of surface and subsea wells; electric control valves for regulating the flow of fluids; electric valve actuators; electric actuators for well drilling, workover, intervention and production system components and well fluid production, processing and transportation system components; electrical controllers; electric control devices for well drilling, workover, intervention and production systems and system components and well fluid production, processing and transportation systems and system components; wireless electric controllers for remotely monitoring and controlling the function and status of other electrical, electronic, and mechanical devices or systems, namely, well drilling, workover, intervention and production systems and well fluid production, processing and transportation systems; electrical integrated control systems for use in the fields of well drilling, workover, intervention and production and well fluid production, processing and transportation; electric control panels; electric installations for the remote control of industrial operations; recorded and downloadable software for the automation of well drilling, workover, intervention and production systems and system components and well fluid production, processing and transportation systems and system components; monitoring systems, namely, computer hardware and integrated recorded computer software for well drilling, workover, intervention and production systems and system components and well fluid production, processing and transportation systems and system components; remote monitoring and data access systems, namely, computer hardware and integrated recorded computer software for well drilling, workover, intervention and production systems and system components and well fluid production, processing and transportation systems and system components installation, maintenance and repair of well drilling, workover, intervention and production systems and system components and well fluid production, processing and transportation systems and system components; consulting services, namely, technical consulting services concerning the installation, maintenance and repair of well drilling, workover, intervention and production systems and system components and well fluid production, processing and transportation systems and system components; providing technical support, namely, technical advice concerning the installation, operation maintenance and repair of well drilling, workover, intervention and production systems and system components and well fluid production, processing and transportation systems and system components; oil field services, namely, operation and servicing of well drilling, workover, intervention and production systems and system components and well fluid production, processing and transportation systems and system components monitoring services for well drilling, workover, intervention and production systems and system components and well fluid production, processing and transportation systems and system components; design and engineering of integrated systems for oil, gas, injection and carbon sequestration wells; design and engineering of well drilling, workover, intervention and production systems and system components and well fluid production, processing and transportation systems and system components; inspection and testing of well drilling, workover, intervention and production systems and system components and well fluid production, processing and transportation systems and system components; research and development of technology in the field of well drilling, workover, intervention and production systems and system components and well fluid production, processing and transportation systems and system components; consulting services, namely, technical consulting services in the field of surface and subsea engineering
A subsea manifold 150 is integrated into a pipeline 22 so as to be deployable to the seabed together with the pipeline, from a pipe-laying vessel. The subsea manifold comprises a hub 106a, 106b for receiving production fluid from at least one subsea christmas tree 54a, 54b, and further comprises a connection 112 for at least one service line 116 connected to a surface supply or control or monitoring facility.
E21B 43/017 - Production satellite stations, i.e. underwater installations comprising a plurality of satellite well heads connected to a central station
E21B 41/00 - Equipment or details not covered by groups
F16L 1/16 - Laying or reclaiming pipes on or under water on the bottom
F17D 3/01 - Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
F17D 5/00 - Protection or supervision of installations
06 - Common metals and ores; objects made of metal
11 - Environmental control apparatus
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
structures and system components of metal for use in the production and storage of renewable and transition energy, including wind, wave, solar and hydrogen energy, namely, fixed and floating offshore platforms made primarily of metal, metal pipes, tubulars, flowlines and pipelines, and flexible pipes comprising primarily metal parts offshore and subsea apparatus and equipment for the production and storage of renewable and transition energy, including wind, wave, solar and hydrogen energy, namely, solar collectors, solar energy receivers, solar reactors, wave energy converters, wave energy harvesting apparatus, and hydrogen generators construction, installation, maintenance and repair of renewable energy generation and storage systems and ancillary structures and equipment; construction project management services in the field of renewable energy generation and storage systems and ancillary structures and equipment; construction, installation, maintenance and repair of fixed and floating platforms for renewable energy generation and storage apparatus and ancillary structures and equipment; construction, installation, maintenance and repair of pipelines technical consulting services in the field of renewable energy production technological consulting services in the field of renewable energy; engineering of renewable energy generation systems and ancillary structures and equipment; research and development of renewable energy generation systems and ancillary structures and equipment
40.
THERMOELECTRIC GENERATOR FOR PIPES, WHICH GENERATOR IS INTENDED TO BE INVOLVED IN THE THERMAL INSULATION OF PIPES
COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES (France)
TECHNIP FRANCE (France)
Inventor
Pellat, Michel
Caroff, Tristan
Remondiere, Vincent
Abstract
The thermoelectric generator (100) for pipes comprises a thermal insulator and thermoelectric modules (102). The thermoelectric generator (100) comprises a first ring (103) which is thermally conductive at least in part, the first ring (103) being intended to encircle the pipe. The thermoelectric generator (100) comprises a second ring (104) which is thermally conductive at least in part, the second ring (104) encircling the first ring (103). The thermal insulator connects the first ring (103) to the second ring (104). Each thermoelectric module (102) is placed inside the thermal insulator. Each thermoelectric module (102) is thermally coupled to the first ring (103) and each thermoelectric module (102) is thermally coupled to the second ring (104).
F03G 7/04 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using pressure differences or thermal differences occurring in nature
H01L 35/32 - SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR - Details thereof operating with Peltier or Seebeck effect only characterised by the structure or configuration of the cell or thermocouple forming the device
41.
Method for producing a stream of propylene and associated facility
A method for producing a stream of propylene and associated facility are described. The method includes: an introduction of a feed cut rich in C4 and/or C5 hydrocarbons, and at least one cut rich in ethylene into a metathesis reactor; an introduction of a metathesis product in a deethylenizer; a production of an overhead stream rich in ethylene and a feed stream; an introduction of the feed stream into a depropylenizer and recovery of a bottom stream containing C4+ hydrocarbons; a recovery, from an overhead stream of the depropylenizer, of the propylene stream; a lateral withdrawal of a recycle stream and return of the recycle stream to the metathesis reactor; a lateral draw-off, in the depropylenizer, of a purge rich in C4 paraffinic hydrocarbons and/or rich in isobutene.
37 - Construction and mining; installation and repair services
41 - Education, entertainment, sporting and cultural services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Constructions services, namely, building construction; construction of public works and rural works, namely, offshore constructions, pipeline construction, concrete pouring and forming for building and other commercial or public concrete structures, construction of underground utilities and housing pads, construction of oil and gas, petrochemical and energy refineries and plants; construction work supervision being construction management; information with respect to construction; Construction, maintenance and repair of industrial installations, offshore energy transition (carbon capture and sequestration, offshore wind turbine, solar panel) Training services for industrial plants, namely, providing specialized professional training to employees in the fields of in process operations, factory maintenance, analytical control of process and product flows, environmental protection and safety, project management and factory construction, customized training solutions integrating an interface design and advanced learning methods, dynamic simulation of operator training (OTS), coordinating the procurement and improvement of process control skills and solving operator problems Industrial plant design services, namely, conceptual process studies, consolidation of process assemblies, basic studies required to support a set of technical design all containing the data necessary to a competent contractor for carrying out detailed engineering in the nature of engineering design services; detailed engineering services for industrial plants, namely, online non-downloadable software for purchasing material, developing diagrams for pipework and instruments published for the construction, developing detailed pipework drawings, including measuring and stress calculations, drafting detailed drawings relating to instrumentation, to electrical installations and to civil engineering works, managing supplier designs, controlling costs and bill books, start-up procedures, developing diagrams for pipework and process instruments and public services published for the detailed engineering, drafting detailed maps of hazardous areas and plots, drafting the main diagrams for pipework, instrumentation, electricity and civil engineering; maintenance engineering services for industrial plants; converting existing printed courses to digital media formats, namely, conversion of data or documents from physical to electronic media; commissioning of industrial plants, namely, online non-downloadable software for construction management, 3D construction systems, subdivision of the system via the 3D model enabling 3D viewing of the systems and improving pre-commissioning and commissioning studies during the engineering phase, tracking the progress of construction/pre-commissioning/commissioning up to delivery, QA/QC statistics and reports, interface management between different phases of the project lifecycle (engineering, construction, pre-commissioning, commissioning); industrial design; architecture, namely, architectural services; research and development of industrial systems and equipment; technical research in the fields of engineering, design, construction, project management and processing technologies
43.
Mechanically lined pipe having an inner polymer liner
A mechanically lined pipe including a host pipe having an inner surface which is lined with a metallic liner, the metallic liner having an inner surface which is lined with a polymer liner which presses the metallic liner against the inner surface of the host pipe, as well as to methods of reeling and unreeling the mechanically lined pipe. A method of making a mechanically lined pipe having an internal polymer liner, the mechanically lined pipe including a host pipe having an inner surface which is lined with a metallic liner, the method including the steps of: (a) providing a mechanically lined pipe having an internal diameter, (b) providing a polymer liner having an outer diameter which is greater than the internal diameter of the mechanically liner pipe, (c) reducing the outer diameter of the polymer liner such that it is less than the internal diameter of the mechanically liner pipe, (d) inserting the polymer liner into the mechanically lined pipe, and (e) allowing the polymer liner to expand such that it presses the metallic liner against the inner surface of the host pipe.
F16L 9/147 - Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and plastics with or without reinforcement
F16L 1/12 - Laying or reclaiming pipes on or under water
F16L 58/08 - Coatings characterised by the materials used by metal
B29C 63/42 - Lining or sheathing, i.e. applying preformed layers or sheathings of plasticsApparatus therefor by liberation of internal stresses using tubular layers or sheathings
F16L 58/10 - Coatings characterised by the materials used by rubber or plastics
Disclosed is an installation (14) for supporting a self-raising oil drilling or exploration platform (12), the installation comprising an underwater structure (44) intended to rest on a seabed (22) under a body of water (25), the underwater structure comprising a plurality of support caissons (32, 34, 36) capable of serving respectively as support for the load-bearing legs (26, 28, 30) of the platform. The load-bearing legs extend respectively along axes (V1 to V3) intended to be substantially vertical. The installation comprises a plurality of threaded rings (46, 48, 50) respectively on the support caissons, each of the rings comprising a sleeve, and a head situated above the sleeve. The sleeve and the head define a through-recess along one of the axes, the recess receiving at least one part of one of the support caissons. The rings can move vertically with respect to the support caissons, between a low position, in which the rings are immersed in the body of water, and a high position, in which the head of each of the rings is partially emerged and is intended to surround one of the load-bearing legs along one of the axes. The head is capable of forming a barrier between one of the load-bearing legs and portions of permanent or drifting ice on the body of water.
E02B 17/02 - Artificial islands mounted on piles or like supports, e.g. platforms on raisable legsConstruction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
E02B 17/04 - Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction
E02B 17/08 - Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering
E02D 23/02 - Caissons able to be floated on water and to be lowered into water in situ
E02D 27/42 - Foundations for poles, masts, or chimneys
45.
Natural gas liquefaction installation arranged at the surface of an expanse of water, and associated cooling method
The installation (10) comprises: —at least one air-cooled heat exchanger (22), the air-cooled heat exchanger (22) comprising a tube bundle capable of accepting a flow (24) that is to be cooled, and a fan capable of causing a flow of air to circulate across the bundle of tubes; —a water spraying assembly (26). The desalination assembly (20) comprises a salt water pickup (100) in the expanse of water (12), the desalination assembly (20) being coupled downstream to the water-spraying assembly (26). The water spraying assembly (26) comprises at least one spray nozzle opening into the bundle of tubes, the or each spray nozzle being directed towards the tubes of the tube bundle so as to spray liquid demineralised water coming from the desalination assembly (20) into contact with the tubes of the tube bundle.
F28D 5/00 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, using the cooling effect of natural or forced evaporation
F25J 1/00 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
F02C 3/30 - Adding water, steam or other fluids to the combustible ingredients or to the working fluid before discharge from the turbine
F25B 11/00 - Compression machines, plants or systems, using turbines, e.g. gas turbines
F25J 1/02 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen
F28B 1/06 - Condensers in which the steam or vapour is separated from the cooling medium by walls, e.g. surface condenser using air or other gas as the cooling medium
A pipe tensioner for laying or recovering a subsea pipeline comprising at least two opposing continuous tracks able to hold the subsea pipeline, each track having a plurality of pads mounted on the continuous track for contacting the subsea pipeline, characterised in that at least one pad is a load pad comprising one or more load sensors for measuring loading on the load pad during handling of the subsea pipeline.
G01L 5/1627 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force using variations in ohmic resistance of strain gauges
F16L 1/235 - Apparatus for controlling the pipe during laying
G01L 5/101 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means using sensors inserted into the flexible member
47.
END FITTING OF A FLEXIBLE PIPE, ASSOCIATED FLEXIBLE PIPE AND RELATED METHODS
An end fitting (14) of a flexible pipe (14) for conveying a fluid comprising: • - an end vault (42) and an outer cover (44) fixed around the end vault (42), • - at least a front region (36) of an internal polymeric sheath (18), • - at least end sections (40) of at least one tensile armor layer (24, 25) arranged around the internal polymeric sheath (18), • - a front sealing assembly (54) arranged around the front region (36) of the internal polymeric sheath (18). The front sealing assembly (54) comprises a cannula (64) supporting at least one part of the front region (36) of the internal polymeric sheath (18) and an annular protrusion (66) arranged on an internal surface (48) of the end vault (42). the front region (36) of the internal polymeric sheath (18) is circumferentially tightened between the at least one protrusion (66) and the cannula (64).
F16L 33/01 - Arrangements for connecting hoses to rigid membersRigid hose-connectors, i.e. single members engaging both hoses specially adapted for hoses having a multi-layer wall
F16L 33/00 - Arrangements for connecting hoses to rigid membersRigid hose-connectors, i.e. single members engaging both hoses
F16L 11/08 - Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
F16L 23/18 - Flanged joints characterised by the sealing means the sealing means being rings
48.
Method for attaching an anchorage element to an element of the armor of a flexible pipe, associated pipe and associated fitting method
A method for attaching at least one transverse anchorage element to an armor element intended to be housed in an end-fitting of a flexible pipe, including the following steps: the supply of an attachment device accepting an anchorage element; the bringing of an opening to face the armor element; the melting of one end of the anchorage element facing the armor element and of a region of the armor element facing the anchorage element, inside the cavity of the attachment device; the forging of the anchorage element transversely on the armor element, using the attachment device; and the formation of a weld connecting the anchorage element and the armor element.
F16L 11/08 - Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
B23K 31/02 - Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups relating to soldering or welding
F16L 33/01 - Arrangements for connecting hoses to rigid membersRigid hose-connectors, i.e. single members engaging both hoses specially adapted for hoses having a multi-layer wall
Cracking furnace system for converting a hydrocarbon feedstock into cracked gas comprising a convection section, a radiant section and a cooling section, wherein the convection section includes a plurality of convection banks, including a first high temperature coil, configured to receive and preheat hydrocarbon feedstock, wherein the radiant section includes a firebox comprising at least one radiant coil configured to heat up the feedstock to a temperature allowing a pyrolysis reaction, wherein the cooling section includes at least one transfer line exchanger.
C10G 9/36 - Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils by direct contact with inert preheated fluids, e.g. with molten metals or salts with heated gases or vapours
A method of preparing a pipe-section for welding to another pipe-section to form a pipeline comprising a plurality of said pipe-sections, the method comprising at least the steps of: (i) providing a pipe-section having first and second pipe-ends; (ii) defining a first portion L1 of the longitudinal length of the pipe-section from the first pipe-end being in the range 3% to 40% of the overall length of the pipe-section; (iii) defining a second portion L2 of the longitudinal length of the pipe-section from the end of the first portion L1 towards the second pipe-end; (iv) heating at least the first portion L1 to at least a first temperature T1 of at least 500° C. for at least 2 minutes; (v) maintaining a second temperature T2 of the second portion L2 during step (iv) below the first temperature T1. The invention is able to reduce the strain capacity during reel-laying of a pipeline formed from a plurality of pipe sections formed by the invention.
B23K 31/02 - Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups relating to soldering or welding
B23K 31/12 - Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups relating to investigating the properties, e.g. the weldability, of materials
The invention relates to a flexible fluid transport pipe, comprising: - a polymer tubular sheath delimiting a central-axis fluid circulation passage; - a pressure vault, disposed around and outside the tubular sheath, the pressure vault comprising a short-pitch winding of at least one stapled shaped wire (40), the shaped wire (40) comprising a plurality of stapled turns (42), each turn (42) having, in section in a median axial plane, a profile defining at least one stud (50, 56) and, for the or each stud (50, 56), a groove (52, 58) adjacent to the stud (50, 56), the stud (50, 56) being suitable for being stapled into a groove (58, 52) of an adjacent turn of a shaped wire (40) of the pressure vault; - at least one reinforcement layer disposed on the outside of the pressure vault, and at least one additional passage (68) for gas circulation through the pressure vault from the inside of the pressure vault to the outside of the pressure vault is defined in the or each stud (50, 56) and/or in the bottom (60, 54) of the or each groove (58, 52), the additional passage (68) allowing gas circulation between the inside of the pressure vault and the outside of the pressure vault in addition to at least one clearance (J1, J2) between the stud (50, 56) of one turn (42) and the bottom (60, 54) of the groove (58, 52) of the adjacent turn, or in the absence of clearance between the stud (50, 56) of one turn (42) and the bottom (60, 54) of the groove (58, 52) of the adjacent turn.
The invention relates to a connection tip for a flexible pipe, comprising: - an end arch (62) and an outer connection cap defining an intermediate space, - a front region of a pressure sheath inserted in the outer cap and defining a central passage, - end sections of a reinforcement layer disposed around the pressure sheath, inserted in the intermediate space, - a terminal region (52) of a barrier layer disposed between the pressure sheath and the reinforcement layer and comprising at least one barrier strip (42) wound on the pressure sheath. The connection tip comprises a sealing ring (78) disposed on the pressure sheath at the front of the free edge (56) of the barrier strip. The sealing ring (78) comprises a rear edge of complementary shape and fixed to the free edge (56), the latter being held abutting one another circumferentially.
F16L 11/08 - Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
F16L 33/01 - Arrangements for connecting hoses to rigid membersRigid hose-connectors, i.e. single members engaging both hoses specially adapted for hoses having a multi-layer wall
Burner system for a radiant section of a steam cracking furnace configured to provide heat to the radiant section, the burner system including a fuel inlet and an oxidant inlet, and further comprising an ejector block arranged located within the radiant section and to receive a propellant and a propelled fluid and arranged to premix said propellant with said propelled fluid.
F23D 14/64 - Mixing devicesMixing tubes with injectors
C10G 9/36 - Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils by direct contact with inert preheated fluids, e.g. with molten metals or salts with heated gases or vapours
F23C 9/08 - Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for reducing temperature in combustion chamber, e.g. for protecting walls of combustion chamber
F23L 7/00 - Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
54.
METHOD OF LOADING A TUBULAR REACTOR WITH A CATALYST TUBE ASSEMBLY, AND A CATALYST TUBE ASSEMBLY FOR A TUBULAR REACTOR
Method of loading a tubular reactor with a catalyst tube assembly, method of unloading a catalyst tube assembly from a tubular reactor, and catalyst tube assembly for a tubular reactor, such as a steam reformer, comprising an outer reactor tube having an inlet end and an outlet end opposite the inlet end, and including an inwardly protruding element; a centering assembly including an inner tube having an inlet end and an outlet end; a tubular boundary having a closed end and an open end.
B01J 8/00 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes
B01J 8/02 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with stationary particles, e.g. in fixed beds
B01J 8/06 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with stationary particles, e.g. in fixed beds in tube reactorsChemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with stationary particles, e.g. in fixed beds the solid particles being arranged in tubes
C01B 3/38 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts
55.
METHOD FOR LAYING AND/OR RECOVERING A LINE IN A BODY OF WATER, COMPRISING A PHASE OF CONTROLLED IMMOBILIZATION, AND ASSOCIATED SYSTEM
The method includes the following steps: - providing a laying device comprising two mutually-facing upstream grasping members (72A) and two mutually-facing downstream grasping members (72B), defining a passage (73) in which the line (12) can circulate; - lowering the line (12) as far as at least one immobilization position; - immobilizing the line (12) in the or each immobilization position; and, before the or each act of immobilizing the line in the immobilization position: - overshooting the immobilization position by a limited extent in the downwards direction in order to reach a change-in-direction position; - holding the change-in-direction position for a timed period; - raising the line (12) by a limited extent back from the change-in-direction position to the immobilization position.
F16L 1/15 - Laying or reclaiming pipes on or under water between the surface and the bottom vertically
F16L 1/19 - Laying or reclaiming pipes on or under water on the bottom the pipes being S- or J-shaped and under tension during laying the pipes being J-shaped
The invention relates to a flexible conduit for transporting a fluid in a submarine environment, suitable for being inspected by an ultrasonic control method for detecting the presence of water in the annular space.
F16L 33/01 - Arrangements for connecting hoses to rigid membersRigid hose-connectors, i.e. single members engaging both hoses specially adapted for hoses having a multi-layer wall
57.
FLEXIBLE PIPE FOR TRANSPORTING FLUID, COMPRISING A HELICAL INSERT, AND ASSOCIATED METHOD
Said pipe (10) comprises: - an internal carcass (26) comprising a first folded strip (31) defining a helical gap (40) which opens towards the central axis (A-A'); - a helical insert (28) closing off the helical gap (40) towards the inside. The helical insert (28) is made of steel and comprises, in cross section in a median axial plane, a radial outer region (44) arranged at least partially in the helical gap (40), and an axial inner region (46) projecting from the radial region (44), the axial inner region (46) at least partially closing off the helical gap (40). The helical insert (28) has an outer free edge (51) arranged inside the helical gap (40), and an inner free edge (55) arranged outside the helical gap (40).
Oil or gas production facility (10), comprising: - a treatment unit (14), - a water pick-up unit (18) for picking up water (20) from an expanse of water (12) and delivering a stream (22) of cooling water to the treatment unit, - a pressure-regulating unit (24) receiving a stream (26) of cooling water at a first pressure coming from the treatment unit, and supplying at least one stream (28) of cooling water at a second pressure lower than the first pressure, and - a control member (38). The pressure-regulating unit comprises a turbine (34) configured to receive at least part of the stream of cooling water coming from the treatment unit and to produce mechanical energy. The control member is designed to perform feedback control of the turbine in order to regulate the first pressure.
F03B 13/00 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates
59.
METHOD FOR DRIVING MACHINES IN AN ETHYLENE PLANT STEAM GENERATION CIRCUIT, AND INTEGRATED ETHYLENE AND POWER PLANT SYSTEM
Method for driving machines, for example process compressors, in an ethylene plant steam generation circuit, the method including the steps of: - recovering heat as high pressure steam from a cracking furnace; - providing said high pressure steam to at least one steam turbine, wherein the steam turbine is configured to drive a machine, such as a process compressor; - condensing at least part of the high pressure steam in a condenser; - pumping condensed steam as boiler feed water back to the cracking furnace.
C10G 9/00 - Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
F01K 13/00 - General layout or general methods of operation, of complete steam engine plants
F01K 17/00 - Use of steam or condensate extracted or exhausted from steam engine plant
F01K 23/06 - Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
60.
METHOD FOR DRIVING MACHINES IN AN ETHYLENE PLANT STEAM GENERATION CIRCUIT, AND INTEGRATED ETHYLENE AND POWER PLANT SYSTEM
Method for driving machines, for example process compressors, in an ethylene plant steam generation circuit, the method including the steps of: - recovering heat as high pressure steam from a cracking furnace; - providing said high pressure steam to at least one steam turbine, wherein the steam turbine is configured to drive a machine, such as a process compressor; - condensing at least part of the high pressure steam in a condenser; - pumping condensed steam as boiler feed water back to the cracking furnace.
F01K 13/00 - General layout or general methods of operation, of complete steam engine plants
F01K 17/00 - Use of steam or condensate extracted or exhausted from steam engine plant
F01K 23/06 - Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
C10G 9/00 - Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
The invention is directed to a method for reducing NOx emission from an industrial process furnace comprising a firebox containing a burner and a tube, which method comprises subjecting an oxidant gas and/or a fuel gas (1) to humidification, thereby obtaining a humidified gas; and pre-heating the humidified gas with an external waste heat stream (20) before feeding the gas to the burner.
The system (18) comprises a reference structure (42) and a fluid transfer pipe (44) designed to extend from a fluid receiving structure (16) toward the reference structure (42). It comprises an intermediate floating connecting unit (46) comprising a pontoon (80), a flexible pipe (82) for connecting to a port on the floating transport structure (14) and a transfer connector (84) between the flexible connection pipe (82) and the pipe (44). The system (18) comprises at least one rigid link (48) for mounting the unit (46) onto the reference structure (42) allowing at least one degree of freedom between the unit (46) and the reference structure (42), the intermediate floating unit (46) being designed to be permanently uncoupled from the floating transport structure (14).
B63B 27/24 - Arrangement of ship-based loading or unloading equipment for cargo or passengers of pipe-lines
B63B 27/34 - Arrangement of ship-based loading or unloading equipment for cargo or passengers for transfer at sea between ships or between ships and off-shore structures using pipe-lines
63.
Underwater pipe comprising a sheath made of a polypropylene homopolymer
3, and a melt index measured at 230° C. under a mass of 2.16 kg of less than 10 g/10 minutes, its preparation method and its use for the transport of hydrocarbons. Such a sheath may be used in contact with hydrocarbons at high temperature.
B32B 15/02 - Layered products essentially comprising metal in a form other than a sheet, e.g. wire, particles
B32B 15/085 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin comprising polyolefins
B32B 27/22 - Layered products essentially comprising synthetic resin characterised by the use of special additives using plasticisers
The present invention relates to a method for manufacturing an armouring wire for a metallic layer for mechanically reinforcing a flexible fluid transport line intended to be immersed in a body of water. The method comprises the following steps: - providing a metal wire comprising at least a first section (32) and a second section (34), the first section (32) and the second section (34) being joined together at their ends by a weld (40), - thermally annealing the weld (40). The method comprises, before the step of thermal annealing, a step of thermally pre-treating at least a portion of the weld (40), the thermal pre-treatment step being a remelting step or an austenitisation step.
An underwater pipe including a metal reinforcing layer around an inner polymeric sealing sheath which may be in contact with hydrocarbons. The inner polymeric sealing sheath includes a polypropylene block copolymer or a mixture of polypropylene block copolymers, wherein the polypropylene block copolymer or the mixture has a density greater than 0.900 g/cm3, and a melt index measured at 230° C. under a mass of 2.16 kg of less than 10 g/10 minutes, its preparation method and its use for the transport of hydrocarbons. Such a sheath may be used in contact with hydrocarbons at high temperature.
B32B 15/085 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin comprising polyolefins
B29C 48/09 - Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
B29C 48/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor
A method that includes the following steps: determination of predictive meteorological data in a region surrounding the facility; querying of a database about the presence of birds in the region surrounding the facility; calculation, by a prediction unit, of the probability of birds passing opposite the facility as a function of time, on the basis of the predictive meteorological data and data relating to the presence of birds in the region surrounding the facility; and control, by a control unit, of at least one light source of the facility, on a basis of the probability of passage, calculated by the prediction unit.
G05F 1/00 - Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
The present disclosure provides a system and method for monitoring a floating vessel hull mooring system by determining one or more hull rotational motions of yaw, roll, and/or pitch that do not require independent knowledge of environmental conditions. The hull rotational motion of a secure and intact mooring system can be calculated and/or established experientially over time by measuring movement of the hull to characterize the hull rotational motion at given geographical positions. A compromised mooring system will result in different hull rotational motion of at least one of yaw, roll, and/or pitch. By monitoring the hull rotational motion for a given geographical position to be compared to the theoretical values (and/or previous recorded values), it is then possible to assess that at least a portion of the mooring system has been compromised and in at some embodiment indicate which portion of the mooring system has been compromised.
B63B 21/50 - Anchoring arrangements for special vessels, e.g. for floating drilling platforms or dredgers
B63B 79/10 - Monitoring properties or operating parameters of vessels in operation using sensors, e.g. pressure sensors, strain gauges or accelerometers
B63B 79/30 - Monitoring properties or operating parameters of vessels in operation for diagnosing, testing or predicting the integrity or performance of vessels
B63B 21/00 - Tying-upShifting, towing, or pushing equipmentAnchoring
B63B 35/44 - Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
68.
Method of installing an in-line structure in a pipeline
A method of installing an In-Line Structure (ILS) to a fluid-filled pipeline extending from a reel, over an aligner, and through a lay-tower during offshore reeling, the pipeline having an oblique part from the reel to the aligner, and a vertical part from the aligner through the lay-tower, including at least the steps of: (a) draining fluid in the fluid-filled pipeline from the vertical part of the pipeline to create a drained portion of the vertical part of the pipeline up to and around the aligner; (b) cutting the pipeline at or near the draining of step (a) to create upper and lower open ends of the pipeline; (c) installing the In-Line Structure to at least the upper open end of the pipeline; (d) locating a vent hose through a vent port in the In-Line Structure; (e) adding fluid into the drained portion of the pipeline and venting air from the drained portion of the pipeline through the vent hose to wholly or substantially fill the drained portion of the pipeline with the fluid.
The method comprises at least one phase of quasi-immobilisation or immobilisation of the line comprising the following steps: - activating the motor (110) of at least one upper tensioner (72A) and/or of at least one lower tensioner (72B) by means of a control unit in order to apply a torque for retaining the line against its own weight to the movement member of the upper tensioner (72A) and/or of the lower tensioner (72B); - at least spot controlling, by means of the control unit, at least one motor (110) of an upper tensioner (72A) and/or of a lower tensioner (72B) in order to move a movement member of the upper tensioner (72A) and/or of the lower tensioner (72B) or to modify the retaining torque applied to the movement member of the upper tensioner (72A) and/or of the lower tensioner (72B).
F16L 1/15 - Laying or reclaiming pipes on or under water between the surface and the bottom vertically
F16L 1/19 - Laying or reclaiming pipes on or under water on the bottom the pipes being S- or J-shaped and under tension during laying the pipes being J-shaped
This method comprises a separation of a feed stream (16) into a first fraction (41A) and a second fraction (41B). It comprises injecting the first cooled feed fraction (42) into a first separating flask (22) to produce a light head stream (44).
This method comprises a separation of a feed stream (16) into a first fraction (41A) and a second fraction (41B). It comprises injecting the first cooled feed fraction (42) into a first separating flask (22) to produce a light head stream (44).
The method comprises expanding a turbine feed fraction (48) resulting from the light head stream (44) in a first turbine (26) up to a first pressure and injecting the first expanded fraction (54) into a distillation column (30).
This method comprises a separation of a feed stream (16) into a first fraction (41A) and a second fraction (41B). It comprises injecting the first cooled feed fraction (42) into a first separating flask (22) to produce a light head stream (44).
The method comprises expanding a turbine feed fraction (48) resulting from the light head stream (44) in a first turbine (26) up to a first pressure and injecting the first expanded fraction (54) into a distillation column (30).
The method comprises expanding the second fraction of the feed stream (41B) in a second turbine (40) up to a second pressure substantially equal to the first pressure.
This method comprises a separation of a feed stream (16) into a first fraction (41A) and a second fraction (41B). It comprises injecting the first cooled feed fraction (42) into a first separating flask (22) to produce a light head stream (44).
The method comprises expanding a turbine feed fraction (48) resulting from the light head stream (44) in a first turbine (26) up to a first pressure and injecting the first expanded fraction (54) into a distillation column (30).
The method comprises expanding the second fraction of the feed stream (41B) in a second turbine (40) up to a second pressure substantially equal to the first pressure.
The second expanded fraction (91A) from the second dynamic expansion turbine (40) is used to form a cooled reflux stream (91B) injected into the column (30).
F25J 3/02 - Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
71.
METHOD FOR CONSTRUCTING AND EXPLOITING A HYDROCARBONS PRODUCTION FACILITY, NOTABLY ON AN EXPANSE OF WATER, AND ASSOCIATED EXPLOITATION FACILITY
A method for constructing and exploiting a hydrocarbons production facility comprises the following steps: • - the provision, at a site, of a functional module (16A, 16B) comprising a hybrid cooling system (34); • -the on-site verification of the operation of the equipment of the functional module (16A, 16B); • - the mounting of the functional module (16A, 16B) on a support structure; • - the moving of the structure to an exploitation site on the expanse of water. The verification involves passing a flow that is to be cooled through the air cooler of the hybrid cooling system (34), the flow being cooled exclusively by a flow of air circulating through the air cooler of the hybrid cooling system (34). The exploitation of hydrocarbons on the expanse of water involves passing a flow that is to be cooled through the water cooler of the hybrid cooling system (34), the flow being cooled by exchange of heat with water taken from the expanse of water circulating through the water cooler. The hydrocarbons production facility comprises at least one functional module comprising at least one hybrid cooling system.
E21B 43/00 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
F25J 1/00 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
F25J 1/02 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen
72.
FLEXIBLE CONDUIT INCLUDING A SYSTEM FOR DETECTING AN EVOLUTION OF AN ENVIRONMENTAL PARAMETER
The invention relates to a flexible fluid transport pipe (90) comprising a system for detecting the evolution of an environmental parameter (1), comprising: - a detection module (12) including an LC resonant circuit responsive to an evolution of said environmental parameter, configured to operate, as a function of the value of said parameter, either in a first mode, in which said resonant circuit has a resonance frequency within a predetermined range for which the detection module is detectable by magnetic coupling, or in a second mode, in which said resonant circuit has a resonance frequency outside said range; - a declaration module (11) arranged in proximity to said detection module (12), configured to communicate without a near-field contact even in the event of a variation of the value of said environmental parameter, and configured to declare the presence of the detection module.
H01Q 7/00 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
73.
FLEXIBLE PIPE FOR TRANSPORTING A HYDROCARBON FLUID WITHIN A BODY OF WATER, AND ASSOCIATED METHOD
Flexible underwater pipe designed to transport fluids having a longitudinal axis (A) comprising an internal pressure sheath, an external sealing sheath (20), the pressure sheath and the external sealing sheath (20) defining an annular space of the flexible pipe, at least one tensile armour layer (18) being arranged in the annular space, characterised in that the external sealing sheath (20) has a thickness (E) of between 1/125 and 1/75 of the internal diameter of the external sealing sheath (20) and in that it also comprises a reinforcing strip (22) which comprises a woven material (24) comprising warp yarns (25) and weft yarns (26), the warp yarns (25) being wound in a helix at a short pitch relative to the longitudinal axis (A) of the pipe, and in that the reinforcing strip (22) is linked to the external sealing sheath (20).
The invention relates to a flexible pipe (10) for conveying a fluid in a submarine environment, having a longitudinal axis (A) and a liquid-impermeable outer layer (20) with a thickness of between 1/125 and 1/75 of the internal diameter of said outer layer (20), and comprising at least one helically wound strip (22) forming a plurality of turns, said strip (22) being made of a polymer matrix (24) reinforced with a plurality of reinforcing elements (26).
The present invention relates to a method for manufacturing a flexible pipe (2), comprising the following steps: - providing a central core (4) comprising a pressure sheath (10) defining a passage (22) for transporting a fluid with a central axis (A-A'), - winding at least one layer of traction armour (14, 16) outside the central core (4), - mechanically depositing a fusible material (30) on the external face (24) of the central core (4), - extruding a polymeric sheath (8) over the fusible material (30), the extrusion temperature being higher than the melting temperature of the fusible material (30), the fusible material (30) deposited on the outer face (24) forming a layer for protecting against fluid permeation (12) following the extrusion step, the layer for protecting against permeation (12) being continuous.
The method includes cooling and liquefying a feed gas stream (64), separating a stream obtained from the feed gas stream and recovering a treated gas stream (18) and a liquid stream of the natural gas (20). The method comprises compressing the treated gas stream (18) to form a compressed treated gas stream, and fractionating the liquid stream of the natural gas (20) into a plurality of hydrocarbon fractions (28, 30, 32, 33); the method comprises taking from the compressed treated gas stream (24) a recycle stream (36) and feeding back the recycle stream (36) without cooling into the feed gas stream (14), into the cooled feed gas stream, or into a stream obtained from the cooled feed gas stream upstream of an expansion member (50).
C10L 3/10 - Working-up natural gas or synthetic natural gas
F25J 3/02 - Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
78.
METHOD FOR TREATING A FEED GAS STREAM AND ASSOCIATED INSTALLATION
The method includes cooling and liquefying a feed gas stream (64), separating a stream obtained from the feed gas stream and recovering a treated gas stream (18) and a liquid stream of the natural gas (20). The method comprises compressing the treated gas stream (18) to form a compressed treated gas stream, and fractionating the liquid stream of the natural gas (20) into a plurality of hydrocarbon fractions (28, 30, 32, 33); the method comprises taking from the compressed treated gas stream (24) a recycle stream (36) and feeding back the recycle stream (36) without cooling into the feed gas stream (14), into the cooled feed gas stream, or into a stream obtained from the cooled feed gas stream upstream of an expansion member (50).
C10L 3/10 - Working-up natural gas or synthetic natural gas
F25J 3/02 - Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
79.
Flexible pipe with layers of metal armour and layers of composite armour
The present invention relates to a flexible pipe comprising a mechanical reinforcement element (4) and a pressure sheath. Mechanical reinforcement element (4) comprises at least one metallic tensile armour layer (6) and at least one composite tensile armour layer (7). Composite tensile armour layer (7) is arranged outside metallic tensile armour layer (6). Separation means (8) are provided to separate composite tensile armours (7), while maintaining a radial clearance and a circumferential clearance for composite tensile armours (7).
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
Heat exchanger for quenching reaction gas comprising—a coolable double-wall tube including an inner tubular wall and an outer tubular wall, wherein said inner tubular wall is configured to convey said reaction gas to be quenched, and wherein a space defined by said inner tubular wall and said outer tubular wall is configured to convey a coolant; —a tubular connection member having a bifurcating longitudinal cross-section comprising an exterior wall section and an interior wall section defining an intermediate space filled with refractory filler material, wherein a converging end of said connection member is arranged to be in connection with an uncoolable reaction gas conveying pipe, wherein said exterior wall section is connected with said outer tubular wall of said coolable double-wall tube, wherein an axial gap is left between said interior wall section and said inner tubular wall of said coolable double-wall tube.
F28F 19/00 - Preventing the formation of deposits or corrosion, e.g. by using filters
F28D 7/10 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
F28F 1/00 - Tubular elementsAssemblies of tubular elements
F16L 9/18 - Double-walled pipesMulti-channel pipes or pipe assemblies
F28D 21/00 - Heat-exchange apparatus not covered by any of the groups
The invention relates to a method of manufacturing a pipeline (1) for subsea transportation of oil and gas, the method comprising the steps of: (a) providing a metallic pipe (40) having an external surface, optionally having an intermediate layer (10) formed on the external surface, the metallic pipe (40) having a plurality of electrical cables located on its external surface or on the intermediate layer (10) when present, (b) applying a first coating of a thermoset material (20) to a section of the metallic pipe (40) to form a coated section of the metallic pipe (40), and (c) applying a first coating of a thermoset material (20) to a further section of the metallic pipe (40), wherein the coating is applied such that it overlaps with or abuts the previously coated section of the metallic pipe (40). The invention also relates to an apparatus for carrying out a method of manufacturing a pipeline (1) for subsea transportation of oil and gas, the apparatus comprising: (a) a support for holding a metallic pipe (40), the metallic pipe (40) having an external surface, and optionally having an intermediate layer (10) formed on its external surface, (b) a cable application machine (25) for laying a plurality of electrical cables on the external surface of the metallic pipe (40) or on the intermediate layer (10) when present, and (c) a coating applicator (35) for coating a section of the metallic pipe (40) with a thermoset material (20).
B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor
B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
F16L 9/147 - Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and plastics with or without reinforcement
F16L 59/14 - Arrangements for the insulation of pipes or pipe systems
B29K 75/00 - Use of polyureas or polyurethanes as moulding material
B29K 705/00 - Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
82.
METHOD FOR DETERMINING THE FREE VOLUME OF AN ANNULAR SPACE OF A FLEXIBLE PIPE AND ASSOCIATED SYSTEM
A method for determining the free volume of an annular space of a flexible pipe and associated system comprising the following steps: • depressurising and isolating the annular space (24); • recording a first pressure and the temperature prevailing in the annular space (24); • injecting a given amount of a measuring gas into the annular space (24) and isolating the annular space (24), the annular space (24) remaining under negative pressure following the injection and isolation; • measuring the given amount of measuring gas; • recording a second pressure prevailing in the annular space (24), following isolation of the annular space (24); • determining the free volume of the annular space (24), on the basis of the first pressure, the second pressure, the temperature and the measurement of the given amount of measuring gas.
E21B 43/01 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
G01M 3/28 - Investigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables, or tubesInvestigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipe joints or sealsInvestigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for valves
83.
Movable device for inspecting a production line partially submerged in an expanse of water, suitable for negotiating a curve in the production line, and associated installation and method
A device comprises an assembly for attaching to and moving on the production line. The attachment and movement assembly comprises at least two clamps that can be actuated selectively to clamp the production line, the attachment and movement assembly comprising an active mechanism for moving the clamps longitudinally relative to each other. The attachment and movement assembly comprises a tilting mechanism for tilting the clamps relative to each other, between a position in which they are parallel to each other and a position in which they are tilted with respect to each other. The tilting mechanism comprises a flexion bar capable of switching from a straight configuration in the parallel position of the clamps to a curved configuration in the tilted position of the clamps.
G01N 29/22 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic wavesVisualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object Details
G01N 29/265 - Arrangements for orientation or scanning by moving the sensor relative to a stationary material
A method of positioning an end of a pipeline on a subsea structure includes the steps of: (a) providing a channel on the subsea structure, the channel having an open end adjacent to a receptacle on the subsea structure, (b) providing a pipeline, (c) attaching a connector to an end of the pipeline, (d) laying the end of the pipeline with the connector attached into the channel, and (e) pulling the pipeline end along the channel such that the connector exits the open end of the channel and is received by the receptacle. A channel is used in the method and a subsea structure is used wherein the channel is provided on the upper surface of the subsea structure.
The invention relates to a flexible pipe for transporting a gas and/or petroleum fluid and intended to be submerged within a body of water, comprising, from the outside to the inside of said flexible pipe: - an external sealing sheath intended to limit the penetration of water from the body of water into the flexible pipe, - at least one external reinforcing structure intended to reinforce the flexible pipe wtih respect to internal radial forces and/or tensile forces, - an internal protective sheath (6), - an annular space delimited by the external sheath and the internal sheath (6), the external reinforcing structure being arranged within said annular space, - a tubular internal reinforcing structure (8) intended to reinforce the flexible pipe with respect to external radial forces exerted on the flexible pipe, comprising at least one helical gap (10) and at least one sealing element (11) intended to limit the passage of the gas and/or petroleum fluid from the internal passage to the annular space, said sealing element (11) being wound in a helix within at least one helical gap (10). The invention makes it possible to reduce the corrosion of the external reinforcing structure.
A method for nondestructive inspection of a flexible underwater pipe capable detecting a flooding of the annular space in which the armor layers are found. The method comprises the steps of arranging in the vicinity of the external sheath at least one pair of electrodes, measuring the impedance at the terminals of the pair of electrodes, at a frequency advantageously between 10 Hz and 10 MHz, and comparing the measured impedance with reference values so as to determine the nature of the fluid contained in the annular space.
G01N 27/22 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
G01N 27/02 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
87.
FLEXIBLE PIPE INTENDED TO BE IMMERSED INTO A BODY OF WATER, METHOD FOR THE MANUFACTURE AND USE THEREOF
The present invention relates to a flexible pipe (10) intended to be immersed into a body of water, comprising: - an inner sheath (12) defining a passage for transporting a fluid, in particular hydrocarbons; and - at least one tensile armor layer (16, 17) arranged around the inner sheath (12). The flexible pipe (10) comprises at least one polymeric sheath having a polymeric mixture comprising a thermoplastic polymer forming a matrix, and at least one silicone composition incorporated into said matrix.
A system and a method for an offshore platform that is self-installing, not requiring use of a heavy lift vessel for installation at a site. The system has a built-in, retractable, suspended, conductor guide support frame assembly coupled to the hull of the platform and serves as lateral guide/support for the well conductors/casings during operational conditions. The conductor guide support frame assembly is generally raised during wet tow/transit. At the site, the conductor guide support frame assembly is lowered and secured into the sea to its designated elevation. The conductor guide support frame assembly generally remains suspended from the hull and does not need to extend all the way to the seabed foundation. After operations are completed, the conductor guide support frame assembly is generally raised up relative to the hull, and the whole platform with the conductor guide support frame assembly relocated for reuse at a new site.
E02B 17/02 - Artificial islands mounted on piles or like supports, e.g. platforms on raisable legsConstruction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
E21B 19/00 - Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrickApparatus for feeding the rods or cables
E21B 19/24 - Guiding or centralising devices for drilling rods or pipes
89.
Continuous learning of simulation trained deep neural network model
The present invention provides a system and method of side-stepping the need to retrain neural network model after initially trained using a simulator by comparing real-world data to data predicted by the simulator for the same inputs, and developing a mapping correlation that adjusts real world data toward the simulation data. Thus, the decision logic developed in the simulation-trained model is preserved and continues to operate in an altered reality. A threshold metric of similarity can be initially provided into the mapping algorithm, which automatically adjusts real world data to adjusted data corresponding to the simulation data for operating the neural network model when the metric of similarity between the real world data and the simulation data exceeds the threshold metric. Updated learning can continue as desired, working in the background as conditions are monitored.
B63B 21/50 - Anchoring arrangements for special vessels, e.g. for floating drilling platforms or dredgers
B63B 71/10 - Designing vesselsPredicting their performance using computer simulation, e.g. finite element method [FEM] or computational fluid dynamics [CFD]
G06F 30/20 - Design optimisation, verification or simulation
The present invention provides a system and method of side-stepping the need to retrain neural network model after initially trained using a simulator by comparing real-world data to data predicted by the simulator for the same inputs, and developing a mapping correlation that adjusts real world data toward the simulation data. Thus, the decision logic developed in the simulation-trained model is preserved and continues to operate in an altered reality. A threshold metric of similarity can be initially provided into the mapping algorithm, which automatically adjusts real world data to adjusted data corresponding to the simulation data for operating the neural network model when the metric of similarity between the real world data and the simulation data exceeds the threshold metric. Updated learning can continue as desired, working in the background as conditions are monitored.
The invention relates to a method that includes the following steps: - injecting a C4 and/or C5 hydrocarbon-rich supply fraction (26) and at least one ethylene-rich fraction (22) into a metathesis reactor (28); - injecting a metathesis product (32) into a Deethyleniser (30); - producing an ethylene-rich top stream (70) and a supply stream (78); - injecting the supply stream (78) into a Depropyleniser (34) and recovering a bottom stream (88) containing C4+ hydrocarbons; - recovering, from a top stream (80) of the Depropyleniser (34), the propylene stream (11); - laterally collecting a recycling stream (92) and returning the recycling stream (92) to the metathesis reactor (28); - laterally drawing, in the Depropyleniser (34), a C4 paraffin hydrocarbon-rich and/or isobutene-rich purge (90).
Burner system for a radiant section of a steam cracking furnace configured to provide heat to the radiant section, the burner system including a fuel inlet and an oxidant inlet, and further comprising an ejector block arranged located within the radiant section and to receive a propellant and a propelled fluid and arranged to premix said propellant with said propelled fluid.
C10G 9/36 - Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils by direct contact with inert preheated fluids, e.g. with molten metals or salts with heated gases or vapours
F23C 9/08 - Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for reducing temperature in combustion chamber, e.g. for protecting walls of combustion chamber
F23D 14/64 - Mixing devicesMixing tubes with injectors
F23L 7/00 - Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (France)
Inventor
Guégan, Philippe
Bennevault, Véronique
Nguyen, Thi Hang Nga
Balligand, Frédéric
Abstract
The invention relates to a method for producing an aliphatic polyester amide, comprising a step b) of polycondensation of an aliphatic dioldiamide and an aliphatic dicarboxylic acid in the presence of a distannoxane catalyst allowing the production of aliphatic polyester amides having improved thermomechanical properties.
Burner system for a radiant section of a steam cracking furnace configured to provide heat to the radiant section, the burner system including a fuel inlet and an oxidant inlet, and further comprising an ejector block arranged located within the radiant section and to receive a propellant and a propelled fluid and arranged to premix said propellant with said propelled fluid.
C10G 9/36 - Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils by direct contact with inert preheated fluids, e.g. with molten metals or salts with heated gases or vapours
F23C 9/08 - Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for reducing temperature in combustion chamber, e.g. for protecting walls of combustion chamber
F23D 14/64 - Mixing devicesMixing tubes with injectors
F23L 7/00 - Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
95.
DEVICE FOR DRIVING THE ROTATION OF COILS AND DRIVING METHOD
The invention relates to a device (22) which is placed between two coils and cooperates selectively with each coil in order to drive the rotation of the coil about an axis of rotation. The driving device (22) comprises: a central tower (40) comprising a frame (42); and a support (44) carried by the frame (42), comprising a driving wheel (56) which engages with a face of the coil, and at least one rotating motor (58) for driving the rotation of the driving wheel (56) and that of the coil such that they rotate together about the axis of rotation. The support (44) is mounted such that it pivots about a pivoting axis (B-B') between a first position for the engagement of the driving wheel (56) with a first coil and a second position for the engagement of the driving wheel (56) with a second coil.
B65H 54/44 - Arrangements for rotating packages in which the package, core, or former is engaged with, or secured to, a driven member rotatable about the axis of the package
The facility (10) comprises a first shell (14) and at least one first functional module (16) comprising equipment, said module being supported by the first shell (14). Said facility comprises a second shell (20) mounted in tandem relative to the first shell (14) and at least one second functional module (22) comprising equipment, said module being supported by the second shell (20) The facility (10) comprises a device (36) for permanently and flexibly mooring the second shell (20) relative to the first shell (14) and at least one link (38; 40) for transferring fluid and/or electricity and/or information between the first shell (14) and the second shell (20).
The device (128) comprises a compaction roller assembly (150) supported by a support member, said roller assembly (150) comprising: a straight central shaft (160) having a longitudinal axis (B-B'); and a plurality of compaction rollers (162), mounted parallel to each other about the central shaft (160), each compaction roller (162) having a peripheral surface which is rotatable about the central shaft (160) about a roller axis (C-C'). The longitudinal axis (B-B') of the central shaft (160) is parallel to the central axis of the support member. Each roller axis (C-C') is inclined at a non-zero angle of inclination with respect to the longitudinal axis (B-B') of the central shaft (160).
The invention relates to a line to be submerged in a body of water, comprising: an outer sheath defining an inner volume; an inner sheath arranged in the inner volume and defining a passage for the transport of a fluid, particularly of hydrocarbons, the inner sheath and the outer sheath together defining an annular space; and at least one traction armour ply arranged in the annular space. The line comprises at least one metal sacrificial layer (18) arranged in the annular space, the sacrificial layer (18) comprising a porous body (30) having a minimum specific surface area of at least 5 cm2/g, and the sacrificial layer (18) having a linear metal surface per metre of line of at least 0.3 m2/m.
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 5/18 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material
B32B 5/24 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
B32B 15/02 - Layered products essentially comprising metal in a form other than a sheet, e.g. wire, particles
B32B 15/08 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
B32B 15/14 - Layered products essentially comprising metal next to a fibrous or filamentary layer
B32B 15/18 - Layered products essentially comprising metal comprising iron or steel
The present invention provides a buoyant system and method for a hydrocarbon offshore floating platform to be coupled and decoupled from a subsea buoyant extension with risers slidably coupled thereto. The buoyant system can allow rigid risers to be coupled and decoupled and alternatively move between a first elevation below the offshore floating platform, such as at the buoyant extension, and a higher second elevation at the offshore floating platform independent of a spool piece, arch support, and flexible joint for the risers. The buoyant system can reduce riser stress by reducing bending required for the riser to form a catenary or other curved shape even as a rigid riser.
The present invention provides a buoyant system and method for a hydrocarbon offshore floating platform to be coupled and decoupled from a subsea buoyant extension with risers slidably coupled thereto. The buoyant system can allow rigid risers to be coupled and decoupled and alternatively move between a first elevation below the offshore floating platform, such as at the buoyant extension, and a higher second elevation at the offshore floating platform independent of a spool piece, arch support, and flexible joint for the risers. The buoyant system can reduce riser stress by reducing bending required for the riser to form a catenary or other curved shape even as a rigid riser.
E21B 43/01 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
