摘要:
Connector (12) for releasably attaching two hydrocarbon ducts, the connector comprising first and second connector members (7,8), each connector member (7,8) having a housing (18,19) with a fluid passage (40,41), a valve (42, 43) rotatably seated in the passage for closing off the fluid passage, drive members (21,22) attached to a respective valve (42,43) situated at an outer surface of the housing for rotation of the valves between an open state and a closed state, each drive member (21,22) comprising a displacement device (50,51) movable in an axial direction (A) of the housing (18,19) and a first and second force element (53,54, 55) coupled to a respective displacement device (50,51), wherein in the coupled state of the connector members (7,8), the displacement device (51) of the second drive member (22) engages with the displacement device (50) of the first drive member (21) to place the first and second drive members (21,22) in an axial opening position in which the valves (42,43) are opened and the force elements (53,54) are in a compressed state, and wherein upon axial retraction of the second displacement device (51) away from the first connector member (8), the first and second displacement devices (50,51) are movable by expansion of the force elements (53,54) to an axial closure position in which the valves are closed.
摘要:
An offshore system which includes a vessel hull (2) provided with a moonpool (6) in the form of vertical cylinder through the hull (2) which is open at least at keel level, a cylindrical shaped turret (4) placed within the moonpool opening and rotatable hold within the moonpool (6) via a bearing system consisting of at least one submerged bearing that is placed in the submerged part of the annulus formed between the moonpool (6) and the turret (4), and mooring lines that are connected to the lower part of the turret (4) and to the seabed, so that the vessel (1) can weathervane around the turret (4) when the vessel (1) is moored offshore, characterized in that, within the annulus in the submerged moonpool (6) part both the turret (4) and moonpool (6) are provided with extensions that imbricate each other in which fluid or gas can be trapped so to create a dry area for the submerged bearing.
摘要:
A system is described for use at offshore locations of large depth, for mooring a production vessel or floating unit (14) at a location over a hydrocarbon reservoir (26) and for connecting risers (101) that can be carrying hydrocarbons up from the sea floor to a production vessel that stores the hydrocarbons, flowlines for water injection, gas lift, gas export, umbilicals and mooring lines that moor the vessel. Both the mooring lines and the risers are disconnectably connected to the vessel though a connection buoy, or connector (16). The invention concerns a system that allows a connector (16) to be used that is of minimum mass and volume, to ease its handling especially during its connection and disconnection to and from a vessel.
摘要:
Vessel (14) comprising a hull (3), a shaft (2) extending from an upper part (40) of the hull to a bottom (41) of the hull, a turret (1) being rotatably supported in the shaft via a turret bearing (4,5), a manifold support structure (31) carrying one or more conduits being rotatably supported on the turret via a manifold bearing (32), the turret comprising (1) a cavity (42) for receiving a mooring buoy (11) carrying one or more risers (12) and one or more vertically displaceable actuation members (33) near the manifold bearing (32) for vertically displacing the manifold support structure (31) relative to the turret (1) between a rotational position in which the manifold support structure (31) can rotate relative to the turret via the manifold bearing (32) and a locked position in which the bearing support structure (31) is rotationally locked relative to the turret.
摘要:
A system is described for use at offshore locations of large depth, for mooring a production vessel or floating unit (14) at a location over a hydrocarbon reservoir (26) and for connecting risers (101) that can be carrying hydrocarbons up from the sea floor to a production vessel that stores the hydrocarbons, flowlines for water injection, gas lift, gas export, umbilicals and mooring lines that moor the vessel. Both the mooring lines and the risers are disconnectably connected to the vessel though a connection buoy, or connector (16). The invention concerns a system that allows a connector (16) to be used that is of minimum mass and volume, to ease its handling especially during its connection and disconnection to and from a vessel.
摘要:
A chain connector for holding a chain (14) that moors a vessel to the sea floor under perhaps 2000 tons tension, which can be quickly disconnected in an emergency by applying a moderate disconnecting force such as 50 tons. The chain is held by ratchets (24, 26) that are mounted on arms (34, 36). The arms have upper ends (35) that are pivotally mounted on a housing (38) and have free lower ends (44), with the lower ends being held by cams (50) on locking dogs (52) that have locking dog lower ends (51) pivotally mounted on the housing and free upper ends (60). A hydraulic actuator (70) has pins (58) that engage the upper ends of the locking dogs to prevent the arms and dogs from pivoting apart until the locking dog upper ends (60) are raised.
摘要:
Vessel (14) comprising a hull (3), a shaft (2) extending from an upper part (40) of the hull to a bottom (41) of the hull, a turret (1) being rotatably supported in the shaft via a turret bearing (4,5), a manifold support structure (31) carrying one or more conduits being rotatably supported on the turret via a manifold bearing (32), the turret comprising (1) a cavity (42) for receiving a mooring buoy (11) carrying one or more risers (12) and one or more vertically displaceable actuation members (33) near the manifold bearing (32) for vertically displacing the manifold support structure (31) relative to the turret (1) between a rotational position in which the manifold support structure (31) can rotate relative to the turret via the manifold bearing (32) and a locked position in which the bearing support structure (31) is rotationally locked relative to the turret.
摘要:
The invention relates to a mooring buoy (6), comprising a submerged part (13) and a part extending above water level (11). The part above water level comprising a fluid outlet duct (24) for attaching to a vessel (7), the buoy being anchored to the seabed via substantially taut anchor legs (27, 28). A substantially horizontally oriented fluid transfer duct (15) being attached to a connector (17) of the buoy in a non-rigid manner. The buoy comprises a substantially vertical fluid duct (21) between the connector (17) and the outlet duct (24) and a mooring connector (9) for attaching to a mooring line (8) of the vessel, wherein the length (L) of the buoy is between 20 m and 70 m and the ratio of the diameter (D) of the lower part (13) of the buoy and the length (L) being below 0.3, preferably below 0.2.
摘要:
The invention relates to a mooring buoy (6), comprising a submerged part (13) and a part extending above water level (11). The part above water level comprising a fluid outlet duct (24) for attaching to a vessel (7), the buoy being anchored to the seabed via substantially taut anchor legs (27, 28). A substantially horizontally oriented fluid transfer duct (15) being attached to a connector (17) of the buoy in a non-rigid manner. The buoy comprises a substantially vertical fluid duct (21) between the connector (17) and the outlet duct (24) and a mooring connector (9) for attaching to a mooring line (8) of the vessel, wherein the length (L) of the buoy is between 20 m and 70 m and the ratio of the diameter (D) of the lower part (13) of the buoy and the length (L) being below 0.3, preferably below 0.2.