摘要:
The embodied mobile cranes have a travelling base structure that allows for travel of the crane over a surface. The cranes have a revolving superstructure mounted on the base structure and a boom and a backmast. The boom and backmast are each hinged about an associated pivot axis to horizontal the superstructure. The crane has a main load hoisting manner associated with the boom for hoisting a load. A superstructure ballast is supported on the superstructure. The cranes have a superlift ballast and associated connection manners to connect the superlift ballast to the backmast while the superlift ballast is resting on the surface and/or suspended from the backmast above the surface. The travelling base structure is provided with superlift ballast support to support the superlift ballast on the base structure so that the superlift ballast is movable along with the mobile crane while being supported by the base structure.
摘要:
A dual firing line drilling installation has a drilling tower main structure with four frameworks that are each over a major portion of their height U-shaped in horizontal cross-section. A four-sided central (11) space is present, and along each side of the central space one framework is arranged with its opened vertical side facing the central space. First and second storage devices (25,27) are provided for vertically storing drilling tubulars. The first storage device is housed in a first framework, the second storage device in a second framework. A first hoisting device is supported by a third framework of the drilling tower main structure, to manipulate a string of drilling tubulars in a first firing line (21). A second hoisting device is supported by a fourth framework to manipulate a string of drilling tubulars in a second firing line (23). A first and second pipe racker (29,31) are housed within the drilling tower main structure and adapted to move drilling tubulars while supported in vertical orientation between a storage devices and a firing line.
摘要:
A drilling vessel with a drilling deck includes a drilling vessel floor structure defining the drilling deck and a tubular support assembly that is recessed in the drilling floor structure. The assembly includes a support frame and at least two support tables, wherein the tables have a top surface that forms part of the drilling deck. The tables are each guided by the support frame to allow displacement along a line between an active position for supporting a tubular and a retracted position for passing an object. The tables and the adapters segments supported thereby are coupled, for example via a clamp or a shape-coupling, such that when the tables move from their active position into their retracted position each segment moves with the respective table it is coupled with and the bushing is opened up for passing through an object through the opening between the at least two support tables and the adapter segments they support.
摘要:
The invention pertains to a monohull offshore drilling vessel comprising: a hull having a moonpool and a main deck, which hull further has a hold, which hold has a floor and a side wall, a firing line hoist system that is mounted on the hull above the moonpool, which firing line hoist system comprises a mast, which is connected to the hull of the drilling vessel, a pipe storage for storing drill pipes in a substantially horizontal position, a riser storage for storing risers in a substantially horizontal position, wherein the pipe storage and/or the riser storage extend to the floor of the hold.
摘要:
Marine pipelaying method and system for installing an offshore pipeline (1) that includes one or more accessories (10). The method includes the steps of providing a vessel (2), launching the pipeline (1) in a firing line from the vessel (2) in the direction of the seabed, engaging the pipeline (1) with a clamping device (5b) that is connected to the vessel (2) and adapted to support the weight of the previously launched pipeline (1), and moving the accessory (10) into the firing line to a position above the clamping device (5b). Then the accessory (10) is connected to the pipeline (1) above the clamping (5b) device while the pipeline (1) is held by the clamping device (5b) Follow that the accessory (10) and the launched pipeline (1) connected thereto and releasably secured to a controlled load hoisting device (5) and the weight of the accessory (10) and the launched pipeline (1) connected thereto are transferred from the clamping device (5b) to the controlled load hoisting device (5) while the accessory (10) and the launched pipeline (1) connected thereto remain in the firing line. Finally the clamping device (5b) is disengaged from the pipeline (1) and moved away from firing line. Then the accessory (10) and the launched pipeline (1) connected thereto are lowered along the firing line by the controlled load hoisting device (5).
摘要:
A monohull offshore drilling vessel comprising: a hull having a moonpool; —a multiple firing line hoist system mounted on the hull at said moonpool, the multiple firing line hoist system comprising: —a mast having a top side and a base connected to the hull of the drilling vessel, wherein the mast has a hollow construction with a first side and an opposed second side, —a first hoisting device supported by the mast and having load attachment means displaceable along a first firing line, which extends on the outside of and adjacent to the first side of the mast; —a second hoisting device supported by the mast and having load attachment means displaceable along a second firing line, which on the outside of and adjacent to the second side of the mast; wherein the first and second hoisting devices each include one or more cables and one or more associated winches, the winches preferably disposed in the hollow construction of the mast, to manipulate the position of each of the load attachment devices relative to the mast.
摘要:
A method and vessel for installing an expandable tubular in a subsea wellbore, wherein said expandable tubular is assembled from expandable tubular segments, said expandable tubular being adapted to be expanded diametrically when positioned in said wellbore by means of expansion tooling, wherein a multitude of expandable tubular segments are provided, and wherein use is made of a surface vessel, said vessel comprising: at least one assembly station adapted for the assembly of at least one intermediate tubular assembly by interconnection of multiple expandable tubular segments, an intermediate tubular assembly suspension storage device adapted for storage of one or more intermediate tubular assemblies, said intermediate tubular assemblies being suspended from the vessel into the water by said storage device, a guide and handling system for intermediate tubular assemblies, said guide and handling system having an entry and an exit, said entry being spaced from said exit, the entry being arranged and adapted to receive a suspended intermediate tubular assembly from the storage device, the system being adapted for the upward feeding of said intermediate tubular assembly from the entry towards a top of the system, and then downwards to the exit, said system further being adapted for launching the intermediate tubular assembly downward from said exit into the water towards and into the wellbore, a connecting station adapted for connecting an intermediate tubular assembly to another intermediate tubular assembly.
摘要:
Marine pipelaying method and system for installing an offshore pipeline (1) that includes one or more accessories (10). The method includes the steps of providing a vessel (2), launching the pipeline (1) in a firing line from the vessel (2) in the direction of the seabed, engaging the pipeline (1) with a clamping device (5b) that is connected to the vessel (2) and adapted to support the weight of the previously launched pipeline (1), and moving the accessory (10) into the firing line to a position above the clamping device (5b). Then the accessory (10) is connected to the pipeline (1) above the clamping (5b) device while the pipeline (1) is held by the clamping device (5b) Follow that the accessory (10) and the launched pipeline (1) connected thereto and releasably secured to a controlled load hoisting device (5) and the weight of the accessory (10) and the launched pipeline (1) connected thereto are transferred from the clamping device (5b) to the controlled load hoisting device (5) while the accessory (10) and the launched pipeline (1) connected thereto remain in the firing line. Finally the clamping device (5b) is disengaged from the pipeline (1) and moved away from firing line. Then the accessory (10) and the launched pipeline (1) connected thereto are lowered along the firing line by the controlled load hoisting device (5).
摘要:
A method and vessel for installing an expandable tubular in a subsea wellbore, wherein said expandable tubular is assembled from expandable tubular segments, said expandable tubular being adapted to be expanded diametrically when positioned in said wellbore by means of expansion tooling, wherein a multitude of expandable tubular segments are provided, and wherein use is made of a surface vessel, said vessel comprising: at least one assembly station adapted for the assembly of at least one intermediate tubular assembly by interconnection of multiple expandable tubular segments, an intermediate tubular assembly suspension storage device adapted for storage of one or more intermediate tubular assemblies, said intermediate tubular assemblies being suspended from the vessel into the water by said storage device, a guide and handling system for intermediate tubular assemblies, said guide and handling system having an entry and an exit, said entry being spaced from said exit, the entry being arranged and adapted to receive a suspended intermediate tubular assembly from the storage device, the system being adapted for the upward feeding of said intermediate tubular assembly from the entry towards a top of the system, and then downwards to the exit, said system further being adapted for launching the intermediate tubular assembly downward from said exit into the water towards and into the wellbore, a connecting station adapted for connecting an intermediate tubular assembly to another intermediate tubular assembly.
摘要:
A drilling installation for drilling a well, for example an oil, a gas, or a thermal well, includes a tower structure, a first hoisting device adapted to manipulate a first object in a first firing line in the longitudinal direction of the tower structure, a second hoisting device adapted to manipulate a second object in a second firing line in the longitudinal direction of the tower structure, a storage device for vertically storing tubular elements, such as joined tubulars, and a first pipe racker for moving tubular elements between the storage device and the first firing line. The first and second firing line are located outside the tower structure.