An arrangement for removing liquid from a flow of natural gas in a gas pipe (2), which comprises a straight pipe section (12) with a uniform cross-section. The pipe section (12) is perforated along a substantial part of the circumference of the pipe section wall. The perforations (13) are in communication with a chamber (15) that arranged outside the inner wall of said pipe section (12). The chamber collects liquid that is flowing along the inside wall of the gas pipe (12). The liquid may be lead to a process unit, such as a scrubber through a liquid lock (11).
The present invention relates to a separator system for separating gas, oil and water, and a method for breaking down a dispersion band between an oil phase and a water phase.The separator system comprises a degassing section (2) and a separator (4) with an inlet arrangement pipe(20). The inlet arrangement pipe (20) hasa threshold (5) to retain water up to a specific level, so that oil can flow over the threshold (5). Thereby, a difference in velocities between water and oil is achieved and the dispersion band is broken down.
The invention relates to a floating system, comprising a floating body (1) for floating on water; a mooring system (7), including a mooring line (9), one end of which is attached to the floating body (1) and the other end of which is adapted to be anchored to a seabed(10); at leasttwo buoyancy elements (13, 14) which are attached to the mooring line (9) for generating a buoyant force acting on the mooring line (9), wherein the buoyancy elements (13, 14) are spaced apart from each other.
A platform (2) arranged to float in a body of water (W), comprising a hull (1) with a main portion (1a) which is substantially symmetrical about a center axis (S) and which at an upper end is supporting a deck (5) and at its lower end, below a nominal water line (WL), is provided with a stabilizing element (3) which protrudes from the main portion (1a). The base (B) of the stabilizing element (3) is non-circular and has opposite first and second side portions (14a,b) and opposite first and second end portions (15a,b), and where a first distance (c) between the two end portions (14a,b) is less than a second distance (d) between the two end portions (15a,b).
B63B 35/44 - Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
B63B 39/06 - Equipment to decrease pitch, roll, or like unwanted vessel movementsApparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water
B63B 1/04 - Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with single hull
A device is described for hull (1) in all essentials symmetrical about a centre axis (11) and arranged to be accommodated resting on a seabed (3), where the hull (1) is provided with several support means (17) which in an active position protrudes downwards from a hull bottom (12) and is arranged to maintain the centre axis (11) of the hull (1) in a specified position by each support mean (17) being arranged for vertical displacement in relation to one or both of the hull (1) and the seabed (3). It is also described a method of positioning a hull (1) in all essentials symmetrical about a centre axis (11) on a seabed (3).
B63B 21/50 - Anchoring arrangements for special vessels, e.g. for floating drilling platforms or dredgers
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
A tank system (2) for a hull (1), substantially symmetrical about a centre axis (111) is described, where several primary tanks (21) are arranged between a centre structure (11, 12) and two or more ballast tanks (22), and where two adjacent primary tanks (21) are mutually separated by a primary bulkhead (211) extending from the centre structure (11, 12) and in a substantially radial direction outwards towards a hull side (13), where a secondary ballast tank (22b) is delimited against two adjacent primary tanks (21) and against adjacent primary ballast tanks (22a), as the secondary ballast tanks (22b) show a radial extension greater than a dimensioning, maximum damage depth extension for the hull (1).
A device for connecting a floating vessel such as a tanker (3) and a floating, fixedly orientated, terminal (1), where a floating coupling unit (2) which is provided with a contact portion (211) arranged to be able to bear against a portion of the tanker (3), is shiftably allocated said terminal (1), in that at least two mooring means (24) extend from said terminal (1) via respective shifting devices (23) arranged on the coupling unit (2), and to respective anchors (25) arranged at a distance from said terminal (1) is described. A method for connecting a floating vessel (3) and a terminal (1) for fluids by means of a floating coupling unit (2) is also described.
A floating installation (1) for temporarily accommodating objects that are being transported from a first position to a second position located on a marine installation, characterized by the floating installation including at least one marine docking station (2a-c) adapted for the call of a seagoing transport vessel, the at least one docking station (2) being integrated in the installation (1), at least one helipad (4) and living quarters (6), and a method of transporting personnel and equipment.
B63B 35/44 - Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
B63B 27/30 - 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
9.
PRODUCTION UNIT HAVING A BALLASTABLE ROTATION SYMMETRIC HULL AND A MOONPOOL
A floating production unit is operable for production and storage of hydrocarbons. The production unit exhibits in operation movement properties rendering connection of one or more loose hanging risers (5) of suitable material possible. Such a unit comprises a hull (1) and a deck (4) in an upper end of the hull, the deck being equipped adequately in accordance with the intended application. The floating production unit is distinguished in that the hull (1) is configured to allow suspension of the riser (5) on at least one frame (6) arranged in a shaft / moonpool (3) in a center of the hull (1) wherein vertical movements of the hull (1) are minimized, and that the moonpool (3) of the unit surrounds and protects an upper part of the one or more risers (5) and fixed tubes for transfer of fluid to a processing facility of the production unit against external forces such as waves, ice and vessel collisions, in addition to corresponding protection during connection of the one or more risers (5) unto the at least one frame (6).
Floating platform which function as production units for drilling, production and storage of hydrocarbons offshore. The production units are suitable for use with vertical production risers connected to dry Christmas trees, i.e. Christmas trees rendering both well intervention and production from the platforms possible. The production units may, in addition to processing equipment for treatment of the well stream, also contain drilling tools and/or well intervention equipment.
A plant for the combined re-gasification of refrigerated liquid gas and the production of electric power, where both a unit for re-gasification of liquid gas and a unit for the production of electric power are installed on board a floating terminal comprising tanks for liquid gas, said power producing unit being designed for the generation of electric power by combustion of hydrocarbons, and that the heat produced by the power producing unit is used for the re-gasification of the refrigerated liquid gas.
A cryogenic tank for a vessel, where the tank is placed between and connected with two decks or fundaments (5, 10). The tank that comprises a horizontal base (2) to which a cylindrical wall (1) is connected. The base (2) ranges outside the wall (1) with a horizontal ring (3) to a circular or polygonal skirt (4 )which is connected to the lower fundament (5). The base (2) rests on insulation (6) that carry load.
A cryogenic tank for use in a vessel. The tank is mounted between two horizontal fundaments (8,9) or decks, where the tank is resting on the lower fundament (9). The top of the tank is connected to the upper fundament (8) by an upper cylindrical skirt (7), and the upper cylindrical skirt (7) has a diameter smaller than the diameter of the cylindrical part of the tank (1). The upper cylindrical skirt (7) rests on the inner part of a horizontal outer part (4) of the top of the tank. The outer part of the top of the tank has a flexibility arranged to absorb changes of the upper and lower fundaments (8, 9) positions according to each other, and at the same time absorb changes of the dimensions of the tank in consequence of temperature changes.
A method and system for optimizing the efficiency of an LNG liquification system of the gas expansion type, wherein an incoming feed gas is first separated in a fractionation column by counter current contact with a cold reflux fluid, and a gaseous stream introduced into the heat exchanger system at a reduced temperature such that an intermediate pinch point is created in the warm composite curve.
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
F25J 1/00 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
A floating unit for storage of liquefied gas. The unit comprises a cylindrical or polygon platform body having a shape to store cooled gas (LNG, LPG and such) in one or several centrally arranged tanks. The hull is designed with a self-supporting outer part comprising a double bottom and double sides. The tank(s) for storage of liquefied cooled is arranged well protected within the self-supporting structure. Transfer of load from ships transporting liquefied gas is made by a transfer arrangement. For export of gas a regasification plant may be installed enabling export of dry gas into a net of piping lines. Transfer from the floating unit and to the piping line will be by one of more flexible risers.
A method and associated system for regulation of the cooling capacity of a cooling system that uses a gas expansion cooling circuit where the cooling principle is expansion of one or more gaseous cooling medium streams from a higher pressure to a lower pressure are described,, characterised by the following steps: - reducing the amount of cooling medium which is circulated in the cooling circuit (100) temporarily in that a fraction of gaseous cooling medium is pre-cooled at a higher pressure and is extracted from the cooling circuit (100), - expanding the fraction of cooled gaseous cooling medium across an expansion device (102) to a lower pressure so that at least one part of liquid cooling medium separates, - separating the liquid from the non-condensed gas for temporary storage in a storage unit (104) so that the liquid is temporarily not circulated in the otherwise closed cooling circuit (100), - thereafter to return temporarily stored gaseous cooling medium from the storage unit (104) to the cooling circuit (100) according to need, and - returning non-condensed gas and evaporated cooling medium from the storage unit (104) to a suitable location in the cooling circuit (100). A system to reduce the cooling capacity of a cooling installation based on gas expansion cooling, is also described.
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
17.
CYLINDRICAL TANK FOR TRANSPORT AND STORAGE OF CHILLED, LIQUIFIED GAS ON A FLOATING UNIT, WITH PROVISIONS FOR REDUCING LIQUID MOVEMENTS AND ABSORBING DEFORMATIONS DUE TO VARIATIONS OF THE INTERNAL LOAD
A tank structure for the transport and storing of refrigerated liquefied gas, where the tank (1) is adapted for a position within the hull of a floating unit (2), said tank (1) comprising inner sheathing / skin plates (3) arranged as a cylinder having a vertical axis, and sheathing / skin plates (4, 5) in the top and bottom of the tank, respectively. A set comprising horizontally and vertically extending frames (11, 12) and horizontally extending struts (20) are welded on the sheathing plates (3, 4, 5) within the tank. The purpose is to contribute to the absorption of interior loads and reduce liquid movements in the tank (1) during the movements of the floating unit (2).
Tank for transport and storage of cooled, liquid gas comprising a polygonal or circular-cylindric wall construction comprising one or several inner skin plates (2) abutting an outer insulation (3) and an outer wall structure (4) supporting the insulation. In the polygonal embodiment of the tank, the inner skin plates (2) in the area for knuckle lines between adjacent, plane parts of the skin plates (2) provided with an unsupported, curved plate part (2') with comparatively large radius of curvature, so that the curved plate part (2') by changing the radius of curvature will absorb the plate deformations due to temperature variations or internal loads in the tank (1).
A method is described for production of LNG from an incoming feed gas (1 ) on an onshore or offshore installation, and it is characterised by the following steps: 1 ) the feed gas is led through a fractionation column (150) where it is cooled and separated in an overhead fraction with a reduced content of pentane (C5) and heavier components, and a bottom fraction enriched with heavier hydrocarbons, 2) the overhead fraction from the fractionation column is fed to a heat exchanger system (110) and is subjected to a partial condensation to form a two-phase fluid, and the two-phase fluid is separated in a suitable separator (160) into a liquid (5) rich in LPG and pentane (C3-C5) which is re-circulated as cold reflux to the fractionation column (150), while the gas (6) containing lower amounts of C5 hydrocarbons and hydrocarbons heavier than C5 is exported for further processing in the heat exchanger system (110) for liquefaction to LNG with a maximum content of ethane and LPG 3) the cooling circuit for liquefaction of gas in the heat exchanger system comprises an open or closed gas expansion process with at least one gas expansion step. A system for carrying out the method is also described.
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
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
20.
FLOATING PLATFORM FOR OPERATION IN REGIONS EXPOSED TO EXTREME WEATHER CONDITIONS
A floating platform for drilling after or production of hydrocarbons comprises a semi-submersible main platform (2) carrying process and/or drilling equipment at its upper surface (7), and which is designed as a vertical, essentially flatbottomed cylinder. The main platform (2) is provided with a central vertical shaft (8) which at its lower end is adapted for reception and releasable locking of an anchoring buoy (3) carrying fastening equipment for anchoring lines (10) and for risers (14, 15) and umbilicals.
Mooring system for a tanker, i.e. a mooring of a conventional tanker to an installation with fixed orientation, wherein a conventional tanker (3) which is to be moored to the installation is arriving in a direction favourable to wind, current and waves. By mooring a conventional tanker (3) in four points (A, B, C, D) on a tanker (3), wherein the hawsers to the points (C, D) are connected on board a platform (1) and hawsers to the points (A, B) are connected to two separate buoys (4, 5) and then tightening/slackening the hawsers until the tanker (3) has arrived in the desired/correct position.
Mooring system for a loading station, i.e. a mooring system for a loading station which can be located in a safe distance from a production platform/vessel, where a conventional tanker with dynamic positioning and bow loading equipment can be connected for loading/unloading from a stationary floating platform/vessel, where a loading station (4) is connected to a flexible conduit (3) anchored to the seabed in a point (9) by at least one line (13) to at least one anchor (5) and at least one weight (6) resting on the seabed.
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
patents