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| Number | Title | Issue Date |
| 8127852 | Interchangeable subsea wellhead devices and methods A method for connecting a lower marine riser package to a lower blowout preventer stack. The method includes lowering a frame of the lower marine riser package toward a frame of the lower blowout preventer stack such that a first half of a feed-thru component contac... | 03/06/2012 |
| 8122964 | Subsea stack alignment method A method to interchangeably connect a plurality of Lower Marine Riser Packages with a lower BOP stack includes engaging a Lower Marine Riser Package connector of the Lower Marine Riser Package, with a Lower Stack mandrel connector of a Lower Stack, thereby aligning ... | 02/28/2012 |
| 8096365 | Hydraulic control system A hydraulic control system for controlling an external device (4) at a well installation includes a control module (2) for generating electrical and/or optical control signals. A control pod (8) receives the control signals, the control pod cont... | 01/17/2012 |
| 8056634 | Off-center running tool for subsea tree A running tool for lowering a christmas tree to a subsea wellhead. The running tool includes an off center adjustment to compensate for asymmetric weight distribution in the christmas tree. The running tool comprises a main body, latches for coupling the body to the... | 11/15/2011 |
| 8020623 | Control module for subsea equipment A subsea control module for providing control of subsea equipment is provided. The design allows for replacement and retrieval of a subsea control module with a single remotely operated vehicle (“ROV”) deployment from a vessel. The subsea control module can prov... | 09/20/2011 |
| 8011434 | Subsea securing devices A securing device comprises an axially reciprocable drive shaft which has a head adapted to pass forwards through a detent plate. The head is adapted to engage the plate after rotation. A cam slot is defined in a drive housing and is engageable by a cam follower car... | 09/06/2011 |
| 7967070 | Diverless connector for bend restrictors and/or bend stiffeners A subsea connector is disclosed. The connector includes a guide funnel assembly that may be coupled to a subsea structure. The guide funnel assembly may receive a shaft. The shaft may be coupled to a bend restrictor/limiter or a bend stiffener. The shaft may be rece... | 06/28/2011 |
| 7866398 | Umbilical termination assemblies An underwater termination assembly for use with a subsea system such as a well tree, comprises a construction having first and second limbs substantially at a right-angle to each other, which construction may be lowered having an umbilical connected to one of the li... | 01/11/2011 |
| 7650943 | Hydraulic control system A hydraulic control system for controlling an external device (4) at a well installation includes a control module (2) for generating electrical and/or optical control signals. A control pod (8) receives the control signals, the control pod cont... | 01/26/2010 |
| 7513309 | Apparatus for connecting underwater tubular members A connector for severed pipes in a wellbore has an elongated tubular mandrel, a sealing pack-off ring mounted on the mandrel, an activator ring for pressing against the pack-off ring and causing the pack-off ring to seal an interior of a casing above a shut-off valv... | 04/07/2009 |
| 7490670 | Subsea exploitation device A subsea oil and/or gas exploitation device including at least one guide member for guiding subsea equipment that is to be landed and connected to the device into a connecting position in relation to the device. The at least one guide member includes an array of pro... | 02/17/2009 |
| 7422066 | System for direct vertical connection between contiguous subsea equipment and method of installation of said connection A system for the direct vertical connection between contiguous sub sea equipment is described, having one or more hydrocarbon flow and/or control interconnection between same, so as to dispense with the use of connecting jumpers. One mode of said system comprises a ... | 09/09/2008 |
| 7419001 | Universal tubing hanger suspension assembly and well completion system and method of using same A tubing hanger suspension assembly for an oil and gas well completion system and a method of installing same. The tubing hanger suspension assembly includes a tubing hanger housing which is positioned in the wellhead housing. The tubing hanger assembly includes a s... | 09/02/2008 |
| 7380835 | Single bore high flow junction plate Described herein a single bore, high flow junction plate and flow line assembly adapted for use subsea. This junction plate may be adapted for use with a torque tool manipulated by a remotely operated vehicle (“ROV”). ... | 06/03/2008 |
| 7377323 | Blowout preventer stack landing assist tool A blowout preventer stack landing assist tool and landing tool adapter joint for use with a standard telescoping joint used in oil and gas drilling operations that allows lifting and moving of the riser string and blowout preventer stack without requiring disconnect... | 05/27/2008 |
| 7363975 | Push/pull belleville stack for use with zertech MTM seal A settable and unsettable seal arrangement includes a metal-to-metal seal element; a setting/releasing sleeve in operable communication with the seal element; a retraction ring fixedly attached to the setting/releasing sleeve; a load preservation and unsetting sleev... | 04/29/2008 |
| 7363982 | Subsea well production flow system Methods and apparatus for flowing a subsea well. The method comprises the steps of: supplying a multi-phase medium from a subsea tree 18 to a removable separator package 10; separating the multi-phase flow into one or more phases at the desired pressur... | 04/29/2008 |
| 7360601 | Submersible well pump installation procedure A method of installing an electrical pump assembly in a subsea wellhead member avoids having to run the pump assembly through the wellhead member after removing the wear bushing. The operator first lowers the pump assembly on a string of tubing at least through the ... | 04/22/2008 |
| 7360968 | Method and device for anchoring a pipeline An anchoring method and device, for anchoring a pipeline to a seabed. The pipeline may extend from a well which is located on a seabed to a floating platform. Tension forces which are exerted on the pipeline by the platform are diverted into the seabed by the anchor... | 04/22/2008 |
| 7357184 | Jacking frame having a wellhead centralizer and method of use A jacking frame for an oil well offshore platform is provided that includes a support structure; a coiled tubing injector supported by the support structure and having a longitudinal axis; and a centralizer attached to the support structure, which moves a wellhead o... | 04/15/2008 |
| 7353867 | Whipstock assembly and method of manufacture The present invention discloses a whipstock assembly (100) for use in forming a lateral borehole from a parent wellbore. The whipstock assembly comprises a body (122) and a deflection member 120) above the body. The deflection member includes a ... | 04/08/2008 |
| 7331394 | Autonomous well intervention system A self-contained well intervention system which can be deployed from a lightweight vessel and coupled directly to a wellhead is described. The system includes valve means for providing a suitable well barrier and sealing the intervention system to allow an emergency... | 02/19/2008 |
| 7318479 | Assembly for connecting a jumper to a subsea structure An assembly for connecting a jumper to a subsea structure. The assembly comprises a jumper connector attached to an end of the jumper that has a vertically disposed main body adapted for receiving a plurality of lines, which connect into a corresponding plurality of... | 01/15/2008 |
| 7311035 | Subsea hydraulic junction plate actuator with R.O.V. mechanical override The invention relates to the field of offshore subsea oil and gas drilling and production operations. Specifically the invention relates to a hydraulically and/or mechanically driven junction plate actuator suitable for use in connecting and/or disconnecting a dynam... | 12/25/2007 |
| 7308943 | Well operations system A wellhead has, instead of a conventional Christmas tree, a spool tree in which a tubing hanger is landed at a predetermined angular orientation. As the tubing string can be pulled without disturbing the tree, many advantages follow, including access to the producti... | 12/18/2007 |
| 7308902 | Subsea valve assembly with replaceable fixed orifice insert The present invention is directed to an subsea valve assembly having a fixed orifice insert that can be removed and replaced using a remotely operated vehicle (ROV). The valve assembly includes a removable orifice insert holder and a threaded receptacle housing into... | 12/18/2007 |
| 7243729 | Subsea junction plate assembly running tool and method of installation The invention relates to a running tool for subsea junction plate assembly installation. The invention further relates to a method for installing a junction plate assembly using the running tool of the present invention. ... | 07/17/2007 |
| 7225873 | Coiled tubing cutter A cutting module to sever a tubing in a well includes a piston and shear blade. The piston includes at least two moveable telescoping elements, which are adapted to expand the first piston from a retracted length to an expanded length. The shear blade is connected t... | 06/05/2007 |
| 7225877 | Subsea intervention fluid transfer system A system for subsea transfer of intervention fluids to a subsea intervention apparatus, the system, in certain aspects, including a structure and a frame pivotably mounted thereto, a plurality of frame fluid conduits on the frame for conducting fluid from a connecto... | 06/05/2007 |
| 7222674 | Modular, distributed, ROV retrievable subsea control system, associated deepwater subsea blowout preventer stack configuration, and methods of use A distributed function control module adapted for use in a modular blowout preventer (BOP) stack for use subsea comprises a housing, adapted to be manipulated by a remotely operated vehicle (ROV) with a stab portion adapted to be received into a BOP stack control mo... | 05/29/2007 |
| 7219740 | Well production and multi-purpose intervention access hub A well production and multi-purpose intervention access hub for flowing fluids from multiple wells to a host facility through a flowline. The hub comprises a production header module and a flowline header module configured for fluid communication with the flowline. ... | 05/22/2007 |
| 7216714 | Modular, distributed, ROV retrievable subsea control system, associated deepwater subsea blowout preventer stack configuration, and methods of use A distributed function control module adapted for use in a modular blowout preventer (BOP) stack for use subsea comprises a housing, adapted to be manipulated by a remotely operated vehicle (ROV) with a stab portion adapted to be received into a BOP stack control mo... | 05/15/2007 |
| 7216715 | Modular, distributed, ROV retrievable subsea control system, associated deepwater subsea blowout preventer stack configuration, and methods of use A distributed function control module adapted for use in a modular blowout preventer (BOP) stack for use subsea comprises a housing, adapted to be manipulated by a remotely operated vehicle (ROV) with a stab portion adapted to be received into a BOP stack control mo... | 05/15/2007 |
| 7172447 | Subsea gang connector system A subsea connector system is used to connect internally mounted couplers to provide sealed conduits for subsea operations. The system has a removable (outboard) connector and a fixed (inboard) connector each with a housing having special geometric properties that fa... | 02/06/2007 |
| 7165619 | Subsea intervention system, method and components thereof The subsea intervention system (SIM) includes a BOP module 10 and CT module 20. A tool positioning system 76 is used for positioning a selected subsea tool 22 stored within a rack 18 with a tool axis in line with the BOP axis, whil... | 01/23/2007 |
| 7150324 | Method and apparatus for riserless drilling An offshore riserless drilling system drills a subsea borehole from a platform and through a cased borehole. The system comprises a lightweight drill string suspending a bottomhole assembly and extending from the platform downwardly through a depth of water into the... | 12/19/2006 |
| 7137451 | Controlling and/or testing a hydrocarbon production system A system for use in controlling and/or testing an underwater hydrocarbon production system, has a number of control modules for controlling well trees. The control modules are provided, not at the trees, but at a control center for location underwater. The trees are... | 11/21/2006 |
| 7114970 | Electrical conducting system A generally tubular drill string has a conductive path over a plurality of drill pipe section (10). Each drill pipe section has a first end and a second end, and a wall, and the first end has a first radial sealing surfaces (11) and the second end has ... | 10/03/2006 |
| 7096956 | Wellhead assembly with pressure actuated seal assembly and running tool A subsea well assembly includes a wellhead housing 50 having a cylindrical inner sealing surface and a tubular hanger 10 having a tapered external sealing surface. The running tool 30 includes a central stem 40 connected to the running st... | 08/29/2006 |
| 7093660 | Well operations system A wellhead has, instead of a conventional Christmas tree, a spool tree in which a tubing hanger is landed at a predetermined angular orientation. As the tubing string can be pulled without disturbing the tree, many advantages follow, including access to the producti... | 08/22/2006 |
