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| Number | Title | Issue Date |
| 8104995 | Marine pipeline installation tensioner A marine pipeline installation tensioner comprising a tensioner frame and multiple track units mounted in said frame, wherein each track unit includes an endless track, a chassis, support rollers or other bearing means mounted therein for the endless track, and one ... | 01/31/2012 |
| 7938598 | Marine pipeline installation system and methods A marine pipeline installation system for laying an offshore pipeline and/or installing a subsea riser, the system at least allowing to carry out the reel lay method, wherein the system comprises: one or more storage reels for storage of pipeline, ... | 05/10/2011 |
| 7909538 | Pipe laying vessel and methods of operation thereof A pipelaying vessel comprises storage (502) for a number of pipe units to be assembled into a pipeline and S-lay apparatus (312, 314, 316) for fabricating and paying out of a pipeline by repeated addition of new sections (506). The end of said p... | 03/22/2011 |
| 7246971 | Stabilisation of submarine elongate structures A stabilization system (10) for a section of submarine pipeline (11) comprising an end restraint (15) at each end of the section of pipeline and intermediate restraints (20) between the two end restraints (15) for limiting lateral ... | 07/24/2007 |
| 7231981 | Inline compensator for a floating drill rig An apparatus and method for protecting against the problems associated with heave of a floating drilling rig are disclosed. The disclosed invention is a unique inline compensator in which a plurality of cylinders housed within a tubular housing and a plurality of lo... | 06/19/2007 |
| 7226244 | System for overload protection for pipe or cable laying structures The invention is vessel with a tower adapted to be inclined for handling of tubulars mad of a vessel, a tower with a mast that can be inclined, a pipe reel for storing passing tubulars, a strut with a sleeve for engaging and enabling tower inclination, and a tension... | 06/05/2007 |
| 7189028 | Underwater pipe-laying A pipe-laying vessel includes an upwardly extending tower (14) assembly defining a path down which the pipe passes as a pipeline (40) is being laid by the vessel, and a lower guide arrangement for guiding the pipeline after it has passed down the tower... | 03/13/2007 |
| 7029206 | Reel type pipeline laying ship and method A pipeline laying ship and an improved method of laying a pipeline in a marine environment is disclosed. The pipeline laying ship is a dynamically positioned barge or self-propelled dynamically positioned vessel with a hull having a deck area that supports a pair of... | 04/18/2006 |
| 7021865 | Apparatus and method for use in laying or recovering offshore pipelines or cables During recovery of an offshore pipeline, to a floating vessel for repair, for example, the pipeline is secured to a hang-off clamp. Due to the motion of the vessel, oscillating bending moments can be caused in the pipeline below the clamp. To reduce these bending mo... | 04/04/2006 |
| 6733208 | Reel type pipeline laying ship and method A pipeline laying ship and an improved method of laying a pipeline in a marine environment is disclosed. The pipeline laying ship is a dynamically positioned barge or self-propelled dynamically positioned vessel with a hull having a deck area that supports a pair of... | 05/11/2004 |
| 6729803 | Clamp system for holding a pipe under tension, and a floating support including the system A clamp system installed on a floating support for holding a pipe under tension, the system comprising a tubular element having a plurality of friction shoes. Each of the shoes is mounted at the end of a piston of a hydraulic actuator. The actuators and shoes are di... | 05/04/2004 |
| 6702519 | Reel type pipeline laying ship and method A pipeline laying ship and an improved method of laying a pipeline in a marine environment is disclosed. The pipeline laying ship is a dynamically positioned barge or self-propelled dynamically positioned vessel with a hull having a deck area that support... | 03/09/2004 |
| 6554538 | Reel type pipeline laying ship and method A pipeline laying ship and an improved method of laying a pipeline in a marine environment is disclosed. The pipeline laying ship is a dynamically positioned barge or self-propelled dynamically positioned vessel with a hull having a deck area that support... | 04/29/2003 |
| 6524030 | Underwater pipe-laying A pipe-laying vessel comprises: means (2) for propelling the vessel during pipe-laying; means for assembling sections of pipe generally horizontally on the vessel to form longer lengths; a tower (14) at the bow of the vessel, with respect to an intended d... | 02/25/2003 |
| 6439445 | Tensioner A tensioner, for clamping cables, flexible pipes or bars and moving them forwards in a controlled manner, includes at least two conveyors, each intended to displace one or more clamping members. The conveyors each attached to a main frame element. A selec... | 08/27/2002 |
| 6361250 | Device and method for installing pipes at very great depths A device for laying flexible pipes from the moon pool of a laying vessel comprises an inclinable tower arranged in and essentially a great height above the level of the moon pool, designed to place therein a certain length of pipe to be laid, and two memb... | 03/26/2002 |
| 6328502 | Horizontal reel barge An apparatus for laying deep water sub sea pipelines either by means of reeled pipe or conventional pipelay ("stock on") is disclosed. The vessel is equipped with a dynamic positioning system that is integrated into the pipelay control system. Both method... | 12/11/2001 |
| 6120212 | Marine pipelaying and handling of rigid pipelines A support elelment (12) for supporting a rigid pipeline (10) during plastic bending of the pipeline has a transverse cross-sectional configuration such that, in use, a pipeline supported by the support element contacts said support element is at least fir... | 09/19/2000 |
| 5711638 | System for deploying cable having nodes into a fluid medium and a blowout preventer The system for deploying cable having nodes according to the present invention includes a tubular member, first and second restrictors, and a controller. The cable having nodes travels through the tubular member from a cable supply point to a deployed poi... | 01/27/1998 |
| 5692859 | Cable handling system A linear cable laying engine has a pair of endless belts (12,14) having a substantial length (16,18) in respective face to face opposition, and means for applying force to the belts to cause them to grip a cable (42) between the opposed faces.... | 12/02/1997 |
| 5655753 | Ocean bottom cable handling system and method of using same A marine seismic cable deployment and retrieval system for utilization in conjunction with a marine vessel. The present, searched for invention teaches a large wheel mounted in the front of the vessel for retrieving seismic cable from the water, and a hor... | 08/12/1997 |
| 5630678 | Apparatus for use in laying an elongated article An apparatus for laying out a cable comprising a frame structure through which the cable is moved. The apparatus has a top side cable guiding means which is mounted for rotation about a vertical axis of the frame structure.... | 05/20/1997 |
| 5573353 | Vertical reel pipe laying vessel A vertical reel pipelaying vessel having a vertical pipe storage reel rotatably positioned aft of midship and a vertical aligner wheel positioned forward of the reel. A guide means includes supports for the aligner wheel on the vessel to permit rotational... | 11/12/1996 |
| 5348423 | Device and process for unrolling flexible tubular conduits essentially vertically A device for laying flexible tubular conduits from a floating support comprises rigid accessories the outer diameter of which is greater than the outer diameter of the conduit. It comprises main, linear winch-type tensioning means (6) for normal lowering ... | 09/20/1994 |
| 5346333 | Process for laying flexible tubular conduits using a plurality of ships A process for laying flexible conduits on an ocean floor by continuous unrolling of the conduit at a laying site from at least one supply ship to a laying ship, wherein the flexible conduit is gradually transferred from the supply ship to a storage means ... | 09/13/1994 |
| 5197716 | Seismic cable deployment apparatus A marine cable deployment apparatus for deploying marine seismic cable from a ship which reduces tension force on the cable at the cable storage reel when the cable storage reel (drum) is winding out the cable. Marine cable is subject to a longitudinal te... | 03/30/1993 |
| 4929124 | Method and apparatus for constructing and moving long pipelines This invention provides a plurality of bearing stations in conjunction with traction and braking means to assemble and launch long pipelines where prior assembly and rapid installation are required. A method including prediction of wind, current, and othe... | 05/29/1990 |
| 4917540 | Pipeline laying system and vessel with pipeline straightening and tensioning device A pipelaying system adapted for deployment on a vessel for use in a body of water and having at least one reel for storage and layout of a rigid walled pipeline and including pipe take-off drum for mounting on the vessel for rotation about a horizontal dr... | 04/17/1990 |
| 4808035 | Pneumatic riser tensioner A system for supporting one end of a riser or other elongate element from a marine structure. In the preferred embodiment, a plurality of gas springs are symmetrically disposed about the upper end of a riser. The axis of compression of each gas spring is ... | 02/28/1989 |
| 4799827 | Modular riser tensioner incorporating integral hydraulic cylinder accumulator units A tensioner unit (12) comprising an inner cylinder (22), filled partially with hydraulic fluid, with a piston (26) and piston rod (28) reciprocal therein (sometimes referred to as a hydraulic cylinder) surrounded by a cylindrical chamber (40) (sometimes r... | 01/24/1989 |
| 4787778 | Method and apparatus for tensioning a riser A tensioner system for a riser of a subsea production well. A plurality of at least three tensioners are each pivotally secured to both a lower surface of the production platform and to a tensioner ring that is itself secured to the riser. The tensioner r... | 11/29/1988 |
| 4759662 | TLP marine riser tensioner Several embodiments of a marine riser tensioner (10, 100, 200, 300) are disclosed for use in tensioning a marine riser (12) on a tension leg platform (14) by the use of elastomeric elements. In one embodiment, a plurality of elastomeric pads (60) are plac... | 07/26/1988 |
| 4687378 | Temporarily terminating laying of underwater pipe line The invention relates to the setting-down of a pipe in the sea using a setting-down line. The line is provided with sinkers at its lower end portion which tension the line and allow a reduction in the angle of general inclination of the line with the vert... | 08/18/1987 |
| 4541754 | Device and process for lowering a connector suspended from guide line to a guide column installed on an underwater station An operation for re-entry to an underwater station equipped with a well apparatus. The device comprises, fixed at the end of a rod 1 of a train of rods, a support 2 from which is suspended a module 3 formed by uprights 8 disposed concentrically and connec... | 09/17/1985 |
| 4477207 | Marine riser buoyancy assembly A buoyancy assembly for mounting on a pipe such as a marine riser having service lines, such as choke and kill lines extending therealong, the assembly including discontinuous clamping band members shaped to encompass the pipe and having brackets disposed... | 10/16/1984 |
| 4433938 | Method and apparatus for lowering and positioning a pipe line onto the bottom of a deep water Method and apparatus for lowering and positioning a pipe line onto the bottom of deep water, the pipe line being assembled from pipe sections on deck of a ship, which pipe line from the bottom of the water extends upwardly according to a curved path (18) ... | 02/28/1984 |
| 4379657 | Riser tensioner A modular riser tensioner has a frame (10) for mounting on a platform deck with air (16,18) and oil (20,22) accumulators mounted on a mounting frame and connected to cylinders (24-30) also on the mounting frame. A piston (32) located within the cylinders ... | 04/12/1983 |
| 4297054 | Method of laying offshore pipeline from a reel carrying vessel Disclosed are methods and techniques related to the control of pipelaying operations from a self-propelled reel pipelaying vessel. The methods are concerned with (1) controlling pipeline geometry as a function of pipe entry angle into the water and tensio... | 10/27/1981 |
| 4269540 | Self propelled dynamically positioned reel pipe laying ship A self propelled reel pipe laying ship having forward, midship and stern sections, and having a reel mounted at the midship and thereof about a substantially horizontal axis of rotation extending transversely of the ship, such that the load of the reel is... | 05/26/1981 |
| 4260287 | Portable reel pipelaying method A method for laying a substantially continuous length of pipe on the sea bottom from a carrier vessel, in which a pipe carrying reel is rotatably mounted on the carrier vessel, pipe straightening means are mounted to the carrier vessel downstream of the r... | 04/07/1981 |
