Abstract: 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 ? of a total height of the tank, seen from the top of the tank.

Abstract: 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).

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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 ? of a total height of the tank, seen from the top of the tank.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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).

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.