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| Number | Title | Issue Date |
| 8006765 | Well servicing tool storage system for subsea well intervention A well servicing tool storage system for subsea well intervention is disclosed which provides a tool storage means as part of the intervention system and which has a plurality of tool storage arms deployed around the tool storage means. Each arm has a clamp capable ... | 08/30/2011 |
| 7921918 | Support apparatus for a well bore tool A rigless support for a downhole operation, such as cutting of an underwater casing in preparation for plug-and-abandonment. The unit has a movable base that can be positioned on a floating structure, such as a barge or a marine vessel and delivered to the site. A p... | 04/12/2011 |
| 7419006 | Apparatus for protecting wellheads and method of installing the same An apparatus and method for protecting wellheads of a fixed-leg drilling and production platform which provide an alternative from the shutting in of producing wells as currently required. The apparatus provides a structural barrier for the production process system... | 09/02/2008 |
| 7387166 | Electrically operated actuation tool for subsea completion system components An electrically operated actuation tool for a subsea completion system component having at least one hydraulically actuatable mechanism comprises an electric motor, a hydraulic pump which is driven by the motor and at least one hydraulic line which communicates betw... | 06/17/2008 |
| 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 |
| 7316269 | Enclosed radial wire-line cable conveying method and apparatus A relatively light weight radial wire-line conveyance mechanism capable of sustained high pressure incorporated into a wire-line riser set-up and configured to allow multiple radial bends without sheaves. The conveyance mechanism includes a segmented tubular body st... | 01/08/2008 |
| 7308934 | Fracturing isolation sleeve An apparatus operatively coupled to a well having a production casing positioned therein, the apparatus including a first device having and internal bore, a second device having an internal bore, and a fracture isolation sleeve disposed at least partially within the... | 12/18/2007 |
| 7264057 | Subsea intervention A method and system of subsea intervention comprises lowering one or more assemblies of intervention equipment into the sea. Underwater marine units (such as remote operated vehicles or small submarines) may be employed to connect the assemblies to each other and to... | 09/04/2007 |
| 7258171 | Internal riser rotating control head A holding member provides for releasably positioning a rotating control head assembly in a subsea housing. The holding member engages an internal formation in the subsea housing to resist movement of the rotating control head assembly relative to the subsea housing.... | 08/21/2007 |
| 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 |
| 7234527 | System and method for fail-safe disconnect from a subsea well A system and method for controllably separating a conduit into an upper portion and a lower portion. The system includes a first valve in the upper portion of the conduit above a point of separation, and a second valve in the lower portion of the conduit below the p... | 06/26/2007 |
| 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 |
| 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 |
| 7219737 | Subsea wellhead arrangement for hydraulically pumping a well A subsea well pumping system for installing and retrieving a hydraulically actuated down hole pump employed within the tubing suspended within casing extending from above a seabed, the system having a wellhead assembly affixed to the upper end of the casing for supp... | 05/22/2007 |
| 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 |
| 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 |
| 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 |
| 7216699 | Sub mudline abandonment connector An inner tubular member of a subsea wellhead assembly carries a locking member that moves between a locked and unlocked positions lands within an outer tubular member having a grooved profile in its bore. The inner tubular member joins to a portion of the conductor ... | 05/15/2007 |
| 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 |
| 7156169 | Electrically operated actuation tool for subsea completion system components An electrically operated actuation tool for a subsea completion system component having at least one hydraulically actuatable mechanism comprises an electric motor, a hydraulic pump which is driven by the motor and at least one hydraulic line which communicates betw... | 01/02/2007 |
| 7152682 | Subsea process assembly A subsea process assembly for separating a multiphase flow, the assembly comprising: an inlet for a multiphase medium; a pressure reducing means for reducing the pressure of the multiphase flow from the inlet and creating a source of energy; a multiphase separator f... | 12/26/2006 |
| 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 |
| 7108069 | Online thermal and watercut management A system, method, and software for optimizing the commingling of well fluids from a plurality of producing subsea wells. The mixing temperature and water content in each header of a collection manifold are calculated for each subsea well and header combinations, res... | 09/19/2006 |
| 7086467 | Coiled tubing cutter A subsea production system includes a blowout preventer stack that is adapted to seal and contain pressure in a well. The blowout preventer stack has a passageway through which a tubular string may extend into the well. The subsea production system includes a subsea... | 08/08/2006 |
| 7073593 | Method of drilling and operating a subsea well A method of preparing and operating a subsea well (23), comprising the steps of: locating a drill-through subsea tree (24) on a subsea wellhead; sealingly connecting a high pressure drilling riser (22) between the tree and a drilling platform at... | 07/11/2006 |
| 7066262 | Gelled liquid hydrocarbon treatment fluids having reduced phosphorus volatility and their associated methods of use and preparation This invention relates to reduced volatility gelled liquid hydrocarbon treatment fluids and methods of their use and preparation. In one embodiment, this invention provides a method of treating a portion of a subterranean formation comprising: providing a reduced vo... | 06/27/2006 |
| 7051804 | Subsea protective cap A cap for covering an open upper end of a subsea structure includes a base and a body. The base has a size, after shrinkage, at least slightly larger than the exterior of the open upper end of the subsea structure. The body is connected to the base and projects down... | 05/30/2006 |
| 7051803 | Enclosed radial wire-line cable conveying method and apparatus A relatively light weight radial wire-line conveyance mechanism capable of sustained high pressure incorporated into a wire-line riser set-up and configured to allow multiple radial bends without sheaves. The conveyance mechanism includes a tubular body structure ca... | 05/30/2006 |
| 7044227 | Subsea well injection and monitoring system A subsea wellhead assembly has the capabilities of communicating from the outer surface of an inner wellhead housing to a casing annulus. A connector, adapted to attach to a riser, connects to the outer surface of the inner wellhead housing, thereby communicating wi... | 05/16/2006 |
| 7044228 | Flowline jumper for subsea well A subsea well system has a flowline jumper that extends between components on the sea floor. The jumper has connectors on each end for connecting to the two components and has a curved portion. At least a portion of the jumper is buoyant to cause it to assume a vert... | 05/16/2006 |
| 7032673 | Orientation system for a subsea well An outer wellhead housing has an external locator member initially oriented in a desired direction. An inner wellhead housing lands in the outer wellhead housing. A BOP orientation spool with an external orientation member and an internal orientation member lands on... | 04/25/2006 |
| 7024081 | Fiber optic cable for use in harsh environments Fiber optic cables suitable for use in harsh environments such as down hole oil and gas well applications and methods for fabricating the same have been provided. In one embodiment, an optic cable suitable for down hole oil field applications comprises one or more o... | 04/04/2006 |
| 7000890 | Pressure compensated shear seal solenoid valve A pressure compensated shear seal solenoid valve for use in subsea control systems is disclosed utilizing an arcuate cross section fluid passageway to improve flow rates, ease of serviceability and reduce size. ... | 02/21/2006 |
| 6832874 | Modular seabed processing system To install a modular seabed processing system (1) on a seabed, a monopile foundation (3) is first lowered down and driven into the seabed. A docking unit (4) is lowered towards the installed foundation (3) so that a mating clamp system ( | 12/21/2004 |
| 6763889 | Subsea intervention A method and system of subsea intervention comprises lowering one or more assemblies of intervention equipment into the sea. Underwater marine units (such as remote operated vehicles or small submarines) may be employed to connect the assemblies to each other and to... | 07/20/2004 |
| 6745840 | System for accessing oil wells with compliant guide and coiled tubing The disclosure describes a spoolable compliant guide, a system including a spoolable compliant guide and injector and methods for using the compliant guide, where the guide is designed to connect at one end to the injector and at its other end to a remote installati... | 06/08/2004 |
| 6725936 | Method for drilling a plurality of offshore underwater wells An underwater well system in which an initially vertical drilling riser conduit is fixed by a template at the seabed in a non-vertical orientation. Drilling is carried out through wellhead in the template which also includes a valve tree allowing the production flui... | 04/27/2004 |
| 6516861 | Method and apparatus for injecting a fluid into a well An injection spool for use in the injection of a fluid, for example a slurry of drilling cuttings, into a subsea wellhead assembly has an outer housing having a central bore therethrough. The housing has a first end for connection to a wellhead assembly s... | 02/11/2003 |
| 6484806 | Methods and apparatus for hydraulic and electro-hydraulic control of subsea blowout preventor systems An apparatus for controlling a blowout preventer stack. The apparatus comprises a control pod having a plurality of direct operated solenoid valves in electronic communication with a surface controller through one or more dedicated electronic control wire... | 11/26/2002 |
| 6481504 | Flowline connector with subsea equipment package A flowline connector having a first connector portion for mounting on a first piece of subsea equipment, such as a wellhead. A second connector portion of the flowline connector is attached to an end portion of a flowline. Each connector portion has a res... | 11/19/2002 |
