Abstract:
Modular transfigurable drilling rig system composed of multiple components, which system is transfigurable between a transport mode in which the components of the system are transportable and an operational mode in which the components are assembled to a drilling rig which is adapted to drill into a well centre in the ground.
Abstract:
The drilling rig (1) is for moving a tubular between a horizontal storage position and a vertical drilling position, and comprises a tubular support device (3) for supporting the tubular in the horizontal storage position and a gripper (10) adapted for gripping the tubular at a grip point between a first end and a second end of the tubular. The drilling rig frther comprises a base (5) comprising a well head (9) for vertically receiving the tubular and a motion apparatus (11) comprising one or more actuators for moving the tubular from the horizontal storage position to the vertical drilling position by moving the gripper with respect to the base. The drilling rig further comprises a stop (7) having a known position with respect to the base for positioning the tubular in the horizontal storage position by contacting the second end of the tubular with the stop. The drilling rig comprises a tubular positioning device (15) for bringing the second end of the tubular in contact with the stop.
Abstract:
The present invention relates to a tubular installation system for J-laying tubulars comprising a J-lay tower structure, a tubulars supply system and a loader device comprising tubular grippers and a boom for transporting a tubular, an accessory supply system and accessory handling means for transporting an accessory between the essentially horizontal accessory supply position and the firing line. According to the invention, the accessory handling means are distinct from the tubular grippers and are attached to the boom of the loader device, at a different position than the tubular grippers, such that the loader device can be used as desired for transporting a tubular or an accessory between the respective supply position and the firing line.
Abstract:
A multi purpose hoisting device (2) for use on a floating vessel (1) having a deck (22), the hoisting device (2) comprising: - a load bearing structure (6) to be mounted on the vessel (1); - a main hoisting mechanism (8) for raising and lowering an object above the deck (22) of the vessel (1), the main hoisting mechanism (8) comprising: i. at least one main hoisting winch (15, 16); ii. an upper cable pulley block (23) supported by the load bearing structure (6); said upper cable pulley block comprising multiple pulleys; iii. a travelling cable pulley block (24) comprising multiple pulleys, provided with an object connecting device for releasable connecting an object to the travelling cable pulley block (24); iv. a main hoisting cable (17) associated with the at least one main hoisting winch (15, 16), which main hoisting cable (17) is passed over the pulleys of the upper cable pulley block (23) and the pulleys of the travelling pulley block (24) in a multiple fall configuration, such that the travelling cable pulley block (24) is moveable relative to the load bearing structure (6) by using the at least one main hoisting winch (15, 16); - a main hoist heave compensation mechanism (19, 20, 26) associated with the main hoisting cable (17) for damping the effect of sea- state induced motion of the vessel (1) onto an object supported by the main hoisting cable (17). Also disclosed is a hosting device with an underload protection cylinder (19) and an overload protection cylinder (20).
Abstract:
A hydrocarbon drilling tubulars storage and handling system, said system comprising: - first and second rotary storage racks, each rotary storage rack being rotatable about a vertical axis and having storage slots for storage of multiple tubulars in each rotary storage rack in vertical orientation, the first and second rotary storage rack each including a drive to rotate the storage rack about its vertical axis, - a tubulars racking device positioned between the first and second rotary storage racks, said racking device including a rotary structure that is rotatable about a vertical axis and a drive to rotate the rotary column structure about said vertical axis, the rotary structure supporting at a first side thereof a first tubular racker assembly and at a second side thereof a second tubular racker assembly, each tubular racker assembly including one or more one gripping members adapted to grip a tubular.
Abstract:
This invention relates to a hoisting crane (20) comprising a column (21), a jib (24) and a jib connection member (28) which is disposed on the column and to which the jib is connected pivotably. The crane further comprises an annular bearing structure (25) extending around the column guiding and carrying the jib connection member rotatably about the column. The annular bearing structure comprises one or more column bearing parts (10, 11) connected to the column, comprising column bearing surfaces (10a, 10b, 10c, 10d) associated with the vertical column and one or more jib bearing parts (13) connected to the jib connection member, comprising jib bearing surfaces (13a, 13b, 13c, 13d) associated with the jib connection member. A first vertical column bearing surface (10a) is arranged in a radial direction more inwards than a first jib bearing surface (13a) A second horizontal column bearing surface (10b) is arranged below a second jib bearing surface (13b) and a third column bearing surface (10c) is oriented substantially vertically and is arranged in a radial direction more outwards than a third jib bearing surface (13c) arranged opposite the third column bearing surface.
Abstract:
The method for lowering an object (1) to an underwater installation site (2), wherein a submersible remotely operated vehicle (ROV) (20) having at least one thruster for providing lateral thrust is interconnectable to an object (1), entails providing a vessel (10), having a winch (13) and suspension cable (14); interconnecting and lowering the object (1) and ROV (20) towards the underwater installation site using a suspension cable (14), providing at least one anchor (30) near the installation site; interconnecting each anchor (20) and ROV (20) with a positioning wire (32), while the ROV and object are suspended in the holding position; tensioning and adjusting the length of each positioning wire (32) such that the interconnected ROV and object are positioned with respect to the installation site; and further lowering interconnected object (1) and ROV (20), which are positioned by at least one positioning wire (32) onto the installation site while keeping the interconnected object and ROV suspended from the suspension cable (14).
Abstract:
A vessel (7), preferably a monohull vessel, said vessel having a moonpool (9) and further comprising a tower (1) mounted on vessel and a load hoist system for raising and/or lowering a load through the moonpool. Preferably the tower is located adjacent a single side of the moonpool. Preferably the tower has a single vertical mast. The load hoist system comprises a compensating system, preferably a heave compensation system. Preferably the tower is provided with one or more trolleys (27, 29) and associated vertical trolley guides (13, 14), which allow for up and down movement of the one or more trolleys along at least part of the height of the tower. Preferably the tower is further provided with a vertically moveable work platform (31) and an associated work platform guide, which work platform is movable up and down along at least part of the height of the tower.
Abstract:
The present invention relates to a vessel (1) adapted to perform subsea wellbore related operations including module handling and laying flexible pipeline, e.g. wellbore intervention, said vessel comprising a hull (2) with a moonpool (5) and a stationary drilling mast adjacent said moonpool. The front side of the drilling mast (10) is provided with vertical trolley rails (11) along which - during module handling - a module handling trolley (12) is movable. Further one or more tensioners (30, 31) are provided to engage a flexible pipeline, also being supported by the by the drilling mast. The tensioner frame (30f) of a tensioner is mounted pivotably about a vertical pivot axis (PA) to the drilling mast, such that the tensioner frame is pivotable between the pipeline laying configuration wherein the lower tensioner is provided in the module handling area and an open configuration wherein a vertical trolley path is unobstructed to allow module handling.