A marine vessel (1) comprising an LG handling system (10) is disclosed. The LG handling system (10) comprises an LG tank (13) which is installed on a portion of the marine vessel (1) and a vent line system (20) connected to the LG tank. The vent line system (20) has an outlet (21) arranged on an elevated structure on the marine vessel (1)and at a vertical distance (Dd) from the portion of the marine vessel (1) on which the LG tank (13) is installed.
A LG module for a marine vessel (1), said LG module (10) comprising a support structure for loading and unloading said LG module (10) onto said marine vessel (1), at least one LG tank (12) and a LG gas processing unit (13) for processing LG to fuel, said fuel fulfilling the requirements of an engine of said marine vessel (1).
An inlet conduit assembly 4 for a ballast system of a floating unit 2 and a method for feeding ballast fluid to a ballast tank 8 are disclosed. The inlet conduit assembly 4 has an extension in at least a vertical direction V, and is adapted to provide a fluid communication between a source of ballast fluid 6 and a ballast tank 8 of the ballast system. The inlet conduit assembly 4 comprises a first overflow arrangement 10 adapted to discharge ballast fluid from the inlet conduit assembly at a first level 16 in the vertical direction V. The inlet conduit assembly 4 comprises an inlet conduit assembly top portion 16 that is located at a second level 18 arranged at a distance above the first level 12 in the vertical direction V. The inlet conduit assembly 4 further comprises a ballast fluid level increasing arrangement 20 adapted to actively increase the level of the ballast fluid in the inlet conduit assembly to the second level 18.
The present disclosure relates to a floating unit (1, 101) for offshore application, e.g. a semisubmersible platform or a vessel. The floating unit (1, 101) comprises a cavity wall (21, 121) at least partially delimiting a cavity (20, 120). The cavity wall (21, 121) comprises a lower-most portion (30, 130) at least partly defining a lower cavity opening (26, 126) being adapted to open into ambient water. The lower-most portion (30, 130) is at least partly surrounded by an adjacent surrounding portion (34, 34', 134) of a bottom (15) of the floating unit (1, 101), the adjacent surrounding portion (34, 34', 134) being located vertically above the lower-most portion (30, 130).
The present disclosure relates to a semisubmersible unit (2, 2a-d, 62, 62a comprising - a float (8) located below a still water level, - a deck structure (4) located above the still water level, and - at least two support columns (14, 16, 18, 20; 64, 65, 66) connecting the float (8) and the deck structure (4), such that the still water level intersects the support columns (14, 16, 18, 20; 64, 65, 66). The semisubmersible unit comprises a guide arrangement (30, 68) for guiding an object during displacement from the deck structure (4) to the body of water, and a support structure (34, 34a-d, 70, 70a) for supporting the guide arrangement. The support structure comprises at least one guide support and a first and a second lower support. The guide support has an elongated shape and is adapted to support the guide arrangement. The lower supports have elongated shapes and form an angle (α1, α1a,Y) with each other, wherein 0< the angle < 180°. Each one of the lower supports connect the at least one guide support to the float and/or one of the support columns. The disclosure further relates to a method for displacement of an object, e.g. a well intervention equipment, in relation to a semisubmersible unit.
The present disclosure relates to a closed inclination change system (32) for a floating unit (10). The inclination change system comprises a plurality of inclination change assemblies (34, 36, 38, 40) and each one of the inclination change assemblies (34, 36, 38, 40) is adapted to be in fluid communication with each one of the other inclination change assemblies (34, 36, 38, 40).
Each one of the inclination change assemblies (34, 36, 38, 40) comprises a tank assembly (44) comprising a first tank (46), the tank assembly (44) comprising a tank assembly top portion (48).
an inlet conduit assembly (52) adapted to guide the fluid into the tank assembly (44) from another inclination change assembly (34, 36, 38, 40), the inlet conduit assembly (52) having a conduit top portion (54) that is located above the tank assembly top portion (48).
B63B 39/03 - Equipment to decrease pitch, roll, or like unwanted vessel movementsApparatus for indicating vessel attitude to decrease vessel movements by displacement of masses by transferring liquids
B63B 43/06 - Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving stability using ballast tanks
B63B 1/10 - Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls
B63B 1/12 - Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected rigidly
B63B 35/44 - Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
Herein a floating vessel is disclosed. The floating vessel comprises a body structure, a tank for at least temporarily storing a liquid, and at least one pipe connected to the tank. The floating vessel further comprises a tunnel having a first end portion and a second end portion extending through the body structure. The tunnel is arranged in open connection to an ambient environment of the floating vessel. There is least one pipe connected to the tank extending at least partially through the tunnel.
Herein a floating vessel is disclosed. The floating vessel comprises a deck member and a tank for liquefied hydrocarbon gas such as LNG. The tank extends through the deck member, and the tank is supported by the deck member, suspended at less than ⅓ of a total height of the tank, seen from the top of the tank.
Herein a floating vessel is disclosed. The floating vessel comprises a deck member and a tank for liquefied hydrocarbon gas such as LNG. The tank extends through the deck member, and the tank is supported by the deck member, suspended at less than 1/3 of a total height of the tank, seen from the top of the tank.
Herein a floating vessel is disclosed. The floating vessel comprises a body structure, a tank for at least temporarily storing a liquid, and at least one pipe connected to the tank. The floating vessel further comprises a tunnel having a first end portion and a second end portion extending through the body structure. The tunnel is arranged in open connection to an ambient environment of the floating vessel. There is least one pipe connected to the tank extending at least partially through the tunnel.
The present disclosure relates to a semisubmersible unit (1) for use in offshore applications comprising a float (5) located below a still water level, a deck structure (2) located above the still water level, and at least two support columns (8) connecting the float (5) and the deck structure (2), such that the still water level intersects the support columns (8). The unit (1) further comprises a object displacement arrangement (18, 18', 18"), adapted to assist in the displacement of an object, the object displacement arrangement at least partly being located between the deck structure (2) and the float (5). The object displacement arrangement (18, 18', 18") comprises a guiding arrangement (22, 24, 40) for guiding the object during displacement, and the object displacement arrangement (18, 18', 18") is fixedly connected in at least a lateral direction to at least one of the support columns (8) and/or to the float (5). The disclosure further relates to a method for displacement of an object, e.g. a well intervention equipment, in relation to a semisubmersible unit (1).
The present disclosure relates to a semisubmersible unit (1) for use in offshore applications comprising a deck structure (2) adapted to be positioned above a still water level, a float (5) adapted to be located below the still water level, at least two columns (8) connecting the float (5) and the deck structure (2), such that the still water level will intersect the columns (8). The unit further comprises a cavity (20) provided inside one of the columns (8), the cavity (20) being at least partially delimited by a cavity wall (21) having an upper end (22) and a lower end (24) and a lower cavity opening (26) at the lower end (24), whereby the cavity (20) is arranged within the column (8) such that the cavity (20) extends over at least a portion of the height of the column (8) and such that the lower cavity opening (26) opens into the ambient water. The cavity (20) is adapted for launching and retrieving subsea equipment, especially an ROV (18), into respectively out of the ambient water. The disclosure further relates to a method for launching and/or retrieving subsea equipment into respectively out of ambient water from a semisubmersible unit (1), and to an arrangement and a method for launching and/or retrieving subsea equipment into respectively out of ambient water.
The present embodiments relate to ballast systems for marine structures. The ballast system comprises a ballast tank and a pump. The pump comprises a low side and a high side and the ballast system comprises a first inlet conduit assembly adapted to provide a fluid communication between the ballast tank and the low side. The ballast system is adapted to provide a first operating condition in which first operating condition a fluid is pumped from the low side to the high side.
B63B 39/03 - Equipment to decrease pitch, roll, or like unwanted vessel movementsApparatus for indicating vessel attitude to decrease vessel movements by displacement of masses by transferring liquids
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 13/00 - Conduits for emptying or ballastingSelf-bailing equipmentScuppers
The present disclosure relates to a conduit balcony (22) for a floating unit (10). The conduit balcony (22) comprises a support portion (24) adapted to support at least one conduit. The conduit balcony (22) further comprises a connection portion (26) adapted to connect the support portion (24) to the floating unit (10). The conduit balcony (22) extends in a longitudinal direction (L) and a transversal direction (T). The connection portion (26) extends in the transversal direction (T) from a first connection portion (26'), adapted to be attached to the floating unit (10), to a second connection portion (26"), attached to the support portion (24). The support portion (24) comprises an inner support portion (24') located closest to the first connection portion (26') in the transversal direction (T). The conduit balcony (22) is such that a first prescribed elongation (Δ1), in the longitudinal direction (L), of the first connection portion (26') results in a second elongation (Δ2) of the inner support portion (24'). The conduit balcony (22) is configured such that the second elongation (Δ2) is less than or equal to 30 % of the first elongation (Δ1).
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
The present disclosure relates to a closed inclination change system (32) for a floating unit (10). The inclination change system comprises a plurality of inclination change assemblies (34, 36, 38, 40) and each one of the inclination change assemblies (34, 36, 38, 40) is adapted to be in fluid communication with each one of the other inclination change assemblies (34, 36, 38, 40). Each one of the inclination change assemblies (34, 36, 38, 40) comprises a tank assembly (44) comprising a first tank (46), the tank assembly (44) comprising a tank assembly top portion (48). Moreover, each one of the inclination change assemblies (34, 36, 38, 40) further comprises: - a pump assembly (50) arranged to pump the fluid from the tank assembly (44), and - an inlet conduit assembly (52) adapted to guide the fluid into the tank assembly (44) from another inclination change assembly (34, 36, 38, 40), the inlet conduit assembly (52) having a conduit top portion (54) that is located above the tank assembly top portion (48).
B63B 43/06 - Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving stability using ballast tanks
The embodiments herein relate to a system for discharging a waste fluid from a floating unit (100) adapted to float in a body of water (103). The system is adapted to discharge said waste fluid to said body of water (103) surrounding the floating unit (100). The system comprises a mooring line compartment (105) adapted to accommodate at least part of a mooring line (108) for the floating unit (100) and a discharge portion (115) adapted to discharge the waste fluid into the mooring line compartment (105). The system comprises an outlet (113) adapted to discharge the waste fluid from the mooring line compartment (105) to the body of water (103).
The present invention relates to a unit adapted to float in a body of water with a sea bed. The unit comprises a station-keeping system comprising a mooring line, the mooring line comprising a connection portion and a tail portion and when the unit is floating. The body of water reaches a still water line of the unit and the connection portion extends from the sea bed to a mooring line handling arrangement of the unit. The arrangement is adapted to actively alter the length of the connection portion. When the mooring line is in a permanent mooring position, at least a portion of the tail portion is located in the body of water.
B63B 21/50 - Anchoring arrangements for special vessels, e.g. for floating drilling platforms or dredgers
B63B 21/04 - Fastening or guiding equipment for chains, ropes, hawsers, or the like
B63B 21/20 - Adaptations of chains, ropes, hawsers, or the like, or of parts thereof
B63H 25/00 - SteeringSlowing-down otherwise than by use of propulsive elementsDynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
The present invention relates to a marine structure comprising a supporting member adapted to be located at least partially immersed in water. The supporting member comprises a wall at least partially delimiting the supporting member such that an inner side of the wall at least partially delimits an inner hollow volume of the supporting member and an outer side of the wall is adapted to be in contact with the ambient environment of the supporting member. The supporting member further comprises a stiffening web frame attached to the wall in order to modify the structural capacity of the supporting member, which stiffening web frame comprises a rib and a flange.
The present invention relates to a ballast system for a marine structure. The ballast system comprises a ballast tank which is in fluid communication with a tank arrangement for temporarily holding bilge fluid and/or ballast fluid in a marine structure. The tank arrangement comprises a storage space defined by at least one tank wall, at least one fluid inlet for introducing the bilge fluid and/or ballast fluid in the storage space, and at least one fluid outlet permitting removal of at least parts of the bilge fluid and/or ballast fluid from the storage space. The at least one fluid outlet is at least partly formed by a caisson adapted for receiving a submersible pump at a submersible pump position in the storage space.
B63B 43/06 - Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving stability using ballast tanks
20.
Semi-submersible platform body for supporting drilling, storing, treatment or production of hydrocarbons at sea
The present invention relates to a semi-submersible platform body for supporting drilling, storing, treatment or production of hydrocarbons. The platform body have a cross section with a center point in a first plane, and is defined by a side wall formed by at least one side wall section, the side wall is arranged around the periphery of an open recess. Each side wall section comprises a first and a second side, an upper and a lower edge, the first and second side of the side wall section defines at least a first side wall thickness. The first side of the side wall section faces away from the open recess and the second side of the side wall section faces towards the open recess. The mentioned open recess has a cross section with a center point in the first plane. Further is the center point of the cross section of the open recess displaced a distance in the first plane, from the center point of the cross section of the platform body. The present invention provides for a flexible and versatile platform body which is disposed of the need for custom applications of heavy equipment or facilities in order to prevent displacement of the center of buoyancy.
Method for installing a topside module on an offshore support structure that in use comprises at least one support leg that extends a height above the water level. The method comprises the steps of supporting said topside module on a barge in a position adjacent to said at least one support leg and de-ballasting the barge to lift the topside module a height above water level.
E02B 17/08 - Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering
22.
METHOD FOR INSTALLING A TOPSIDE MODULE ON AN OFFSHORE SUPPORT STRUCTURE
Method for installing a topside module (10) on an offshore support structure that in use comprises at least one support leg (14) that extends a height above the water level (16). The method comprises the steps of supporting said topside module (10) on a barge (12) in a position adjacent to said at least one support leg (14) and de-ballasting the barge (12) to lift the topside module (10) a height (H) above water level (16).
E02B 17/08 - Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering
The present invention relates to a ballast system (10) for a marine structure. The ballast system (10) comprises a ballast tank (12) which is in fluid communication with a tank arrangement (100) for temporarily holding bilge fluid and/or ballast fluid in a marine structure. The tank arrangement (100) comprises a storage space (101) defined by at least one tank wall (102), at least one fluid inlet (110) for introducing the bilge fluid and/or ballast fluid in the storage space (101 ), and at least one fluid outlet (145) permitting removal of at least parts of the bilge fluid and/or ballast fluid from the storage space (101). The at least one fluid outlet (145) is at least partly formed by a caisson (140, 170) adapted for receiving a submersible pump (130) at a submersible pump position (131) in the storage space (101).
The present invention relates to a method for constructing a unit (10) adapted to float in a body of water (12), the method comprising the steps of providing a cavity (26, 30) in the unit (10) such that the cavity (26, 30) is open to the environment surrounding the unit (10), wherein at least a portion of the cavity (26, 30) is adapted to be located below a still water surface when the unit (10) floats in the body of water (12), and determining a first value of at least a first parameter relating to required hydrostatic properties for the unit (10) The present invention also relates to a unit (10) adapted to float in a body of water (12) The unit comprises a cavity (26, 30) such that the cavity (26, 30) is open to the environment surrounding the unit (10) At least a portion of the cavity (26, 30) is adapted to be located below a still water surface when the unit (10) floats in the body of water (12) Moreover, the present invention relates to a use of a cavity (26, 30) in a unit (10) adapted to float in a body of water (12)
B63B 1/02 - Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
B63B 13/00 - Conduits for emptying or ballastingSelf-bailing equipmentScuppers
B63B 35/44 - Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
B63B 39/02 - Equipment to decrease pitch, roll, or like unwanted vessel movementsApparatus for indicating vessel attitude to decrease vessel movements by displacement of masses
B63B 43/06 - Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving stability using ballast tanks
25.
SEA WATER SYSTEM AND FLOATING VESSEL COMPRISING SUCH SYSTEM
A sea water system comprises, an inlet conduit assembly (4), a ballast tank (8) and an overflow arrangement (10) arranged in fluid communication with the inlet conduit assembly (4). The inlet conduit assembly (4) provides a fluid communication between ambient environment and the ballast tank (8). A first pump assembly (6) is arranged in the inlet conduit assembly (4) for pumping sea water through at least a first conduit portion towards the ballast tank (8). A second pump assembly (16) is arranged in fluid communication with the ballast tank (8, 18) and is arranged for pumping sea water from the ballast tank (8, 18) through an outlet conduit assembly (14) arranged after the second pump assembly (16). The second pump assembly (16) and the outlet conduit assembly (14) are separate from the inlet conduit assembly (4). The sea water system may be arranged on a floating vessel.
B63B 13/00 - Conduits for emptying or ballastingSelf-bailing equipmentScuppers
B63B 39/03 - Equipment to decrease pitch, roll, or like unwanted vessel movementsApparatus for indicating vessel attitude to decrease vessel movements by displacement of masses by transferring liquids
The present invention relates to a submersible pump and a submersible pump system for pumping liquid to a marine structure, the pump being adapted to be located in a tube. The pump comprises an upper portion and a lower portion. The upper portion is adapted to be connected to means for suspending the pump in the tube. The pump has a vertical direction extending from the lower portion to the upper portion. The pump further comprises an inlet for allowing the liquid into the pump and an outlet for allowing the liquid out of the pump. The pump further comprises a sealing means located downstream of the inlet and the outlet in the vertical direction, the sealing means being adapted to seal against an inner surface of the tube. The invention further relates to an arrangement for hydraulic drive of the submersible pump and to a semi-submersible unit comprising the submersible pump system.
The present invention relates to a submersible pump and a submersible pump system for pumping liquid to a marine structure, the pump being adapted to be located in a tube. The pump comprises an upper portion and a lower portion. The upper portion is adapted to be connected to means for suspending the pump in the tube. The pump has a vertical direction extending from the lower portion to the upper portion. The pump further comprises an inlet for allowing the liquid into the pump and an outlet for allowing the liquid out of the pump. The pump further comprises a sealing means located downstream of the inlet and the outlet in the vertical direction, the sealing means being adapted to seal against an inner surface of the tube. The invention further relates to an arrangement for hydraulic drive of the submersible pump and to a semi-submersible unit comprising the submersible pump system.
The present embodiments relate to ballast systems for marine structures. The ballast system comprises a ballast tank and a pump. The pump comprises a low side and a high side and the ballast system comprises a first inlet conduit assembly adapted to provide a fluid communication between the ballast tank and the low side. The ballast system is adapted to provide a first operating condition in which first operating condition a fluid is pumped from the low side to the high side.
A marine structure (10) comprising a supporting member (12) that comprises a wall at least partially delimiting said supporting member (12) such that an inner side (28) of said wall is arranged to at least partially delimit an inner volume of said supporting member (12) and an outer side (24) of said wall is arranged to face the ambient environment of said supporting member (12). The marine structure (10) further comprises a drain pipe (30) adapted to guide fluid from said marine structure (10) to a body of water (22) at least partially surrounding said marine structure (10). At least a portion of said outer side (24) of said wall partially delimits said drain pipe (30).
A marine structure comprising a supporting member that comprises a wall at least partially delimiting said supporting member such that an inner side of said wall is arranged to at least partially delimit an inner volume of said supporting member and an outer side of said wall is arranged to face the ambient environment of said supporting member. The marine structure further comprises a drain pipe adapted to guide fluid from said marine structure to a body of water at least partially surrounding said marine structure. At least a portion of said outer side of said wall partially delimits said drain pipe.
A method of constructing a semi-submersible unit with a side wall. To construct the semi-submersible unit, the method can include placing a hull in a body of water and connecting a deck structure to the hull. In addition, there is a kit for constructing a semi-submersible unit, with a side wall.
The present invention relates to a method of constructing a semi-submersible unit (26) comprising a side wall, wherein the method comprises the steps of: placing a hull (10) in a body of water, the hull (10) comprising an opening (20) for receiving an end piece (28), the end piece (28) constituting at least a portion of the side wall; - lowering the hull (10) into the body of water, and - connecting a deck structure (24) to the hull (10) to form a semi-submersible unit (10). The present invention also relates to a kit for constructing a semi-submersible unit (26) comprising a side wall, wherein the kit comprises hull (10) comprising an opening (20) and a deck structure (24). Moreover, the present invention relates to a semi-submersible unit (26) constructed according to the method and/or from a kit according to the present invention.
A method for handling a blow-out-preventer on a drilling platform and a drilling platform having a lower pontoon structure; a plurality of columns extending upwards from the lower pontoon structure; an upper deck structure connecting the upper deck structure connecting the upper portions of the columns to each other; a detachable rotary table assembly arranged in a rotary table opening in the upper deck structure; a derrick provided with a lifting arrangement and being arranged on the upper deck structure above the rotary table opening; and a detachable rotary table assembly a spider and a blow-out-preventer.
The present invention relates to a semi-submersible platform body for supporting drilling, storing, treatment or production of hydrocarbons. The platform body have a cross section with a centre point in a first plane, and is defined by a side wall formed by at least one side wall section, the side wall is arranged around the periphery of an open recess. Each side wall section comprises a first and a second side, an upper and a lower edge, the first and second side of the side wall section defines at least a first side wall thickness. The first side of the side wall section faces away from the open recess and the second side of the side wall section faces towards the open recess. The mentioned open recess has a cross section with a centre point in the first plane. Further is the centre point of the cross section of the open recess displaced a distance in the first plane, from the centre point of the cross section of the platform body. The present invention provides for a flexible and versatile platform body which is disposed of the need for custom applications of heavy equipment or facilities in order to prevent displacement of the centre of buoyancy.
Device (10) or apparatus for launching at least one boat (12) from a structure (14), that is at least partially surrounded by water (16), into the water. The device (10) comprises at least one launch ramp (18) and means to effect translational displacement of said at least one launch ramp (18) when the device (10) has been mounted on said structure (14) in order to enable the position of said at least one launch ramp (18) to be changed before launching said at least one boat (12) into the water (16).
The present embodiments relate to systems for building and/or handling a tubular string of a drilling device. The drilling device comprises a drill floor and a drilling derrick extending from the drill floor. The drill floor has an extension in a first plane (P1) being substantially perpendicular to a first direction (N). The system comprises a suspension device being fixedly attached to the drilling derrick, wherein a projection of the suspension device, in the first direction, onto the first plane (P1), is situated outside the drill floor. The present embodiments also relate to drilling device trolleys arranged to transport a component to and from a drilling center of a drilling device. The present embodiments relate to a use of a drilling device having a drill floor, wherein the drilling device has a suspension device being situated outside the drill floor.
The present embodiments relate to various attachments for attaching together a first body and a second body of a marine structure, which marine structure is adapted to be located at least partially immersed in water, wherein at least a portion of each one of the first and second bodies is adapted to, during use, be in contact with the water. The attachment comprises at least a portion of the second body and comprises a wall, which delimits the second body. The attachment can further comprise at least a portion of the first body, wherein the first body is fixedly attached to, and extends from, the second body. The can attachment further comprise a sealing member, attached to the wall and the first body, which sealing member extends from the wall to the first body such that an enclosed volume is formed between the sealing member, the first body and the second body.
The present invention relates to a system (10) for building and/or handling a tubular sting of a drilling device (12). The drilling device (12) comprises a drill floor (14) and a drilling derrick (18) extending from the drill floor (14). The drill floor (14) has an extension in a first plane (P1) being substantially perpendicular to a first direction (N). The system (10) comprises a suspension device (20) being fixedly attached to the drilling derrick (18), wherein a projection of the suspension device (20), in the first direction, onto the first plane (P1), is situated outside the drill floor (14). The present invention also relates to a drilling device trolley (28) arranged to transport a component (46) to and from a drilling centre (50) of a drilling device (12). Further, the present invention relates to a use of a drilling device (12) having a drill floor (14), wherein the drilling device (12) has a suspension device (20) being situated outside the drill floor (14). Moreover, the present invention relates to a method of adding a tubular member (40) to a tubular string (38).
A method for handling a blow-out-preventer (356) on a drilling platform (300) and a drilling platform having a lower pontoon structure (310a, 310b, 310c, 310d); a plurality of columns (320a, 320b, 320c, 320d) extending upwards from the lower pontoon structure (310a, 310b, 310c, 31Od); an upper deck structure (340) connecting the upper portions of the columns (320a, 320b, 320c, 320d) to each other; a detachable rotary table assembly (352) arranged in a rotary table opening (342) in the upper deck structure (340); a derrick (350) provided with a lifting arrangement and being arranged on the upper deck structure (340) above the rotary table opening (342); and a detachable rotary table assembly (352) a spider (354) and a blow-out-preventer (356). The method is characterized by the steps of: detaching the rotary table assembly (352) from the rotary table opening (342); arranging at least the spider (354) on the blow-out-preventer (356); positioning the blow-out-preventer (356) so that the lifting arrangement of the derrick (350) can lower the blow-out-preventer (356) through the rotary table opening (342); lowering the spider (354) and the blow-out-preventer (356) into the rotary table opening (342) by means of said lifting arrangement, so that the blow-out-preventer (356) is passed through the rotary table opening (342) and so that the spider (354) is arranged in the rotary table opening (342) in an operative position for supporting riser pipes.
The present invention relates to a method of breaking ice located on a water surface around a semi-submersible ship having a weight distribution capacity, which ship comprises a float having a horizontally extending centre plane, a deck structure and at least one support column extending from said float to said deck structure, wherein, when said ship floats in water having a still water surface, said float is adapted to be located at least partially beneath said still water surface and said deck structure is adapted to be located at least partially above said still water surface, wherein said ship further comprises an ice breaking member, fixedly attached to said ship in the area between said float and said deck structure, said ice breaking member comprising an ice breaking panel having a normal direction extending at least partially towards said still water surface.
patents
