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| Number | Title | Issue Date |
| 7886829 | Subsea tanker hydrocarbon production system A subsea and modular tanker-based hydrocarbon production system comprising a plurality of interlinked individual tank units which is wholly submersible, is wholly detachable from, and wholly re-attachable to, its associated subsea wellhead infrastructure. Modularity... | 02/15/2011 |
| 7770651 | Method and apparatus for sub-sea processing A submersible process environment for sub-sea processing is provided. Such environment can include a modular encapsulated unit having an interior volume and one or more processing units disposed therein, a first valve in fluid communication with the interior and ext... | 08/10/2010 |
| 7753126 | Method and apparatus for vacuum collecting and gravity depositing drill cuttings A continuous open discharge vacuum chamber for gravity feeding drill cuttings extracted from a cuttings source by vacuum and depositing them by gravity into a fluid. Embodiments include means for removing and recovery of drilling fluids, sizing the cuttings and reli... | 07/13/2010 |
| 7735563 | Pressure driven pumping system A pressure driven pumping system includes a piston disposed within a first bore of a housing to separate a process chamber from a working chamber. A rod member coupled to the separating member extends into a reduced pressure chamber. The piston has a first face expo... | 06/15/2010 |
| 7686086 | Subsea well separation and reinjection system A subsea well assembly has a string of casing with perforations leading to a producing zone and perforations leading to an injection zone. A string of production tubing extends into the casing in communication with the producing formation. A barrier separates the in... | 03/30/2010 |
| 7516794 | Pipe separator for the separation of fluids, particularly oil, gas and water A pipe separator for the separation of fluids, for example the separation of oil, gas and water in connection with the extraction and production of oil and gas from formations beneath the sea bed. The pipe separator includes a pipe-shaped separator body (1) w... | 04/14/2009 |
| 7516795 | Subsea petroleum production system method of installation and use of the same A subsea petroleum production system for artificial lift, including a pumping module coupled to a flow base, the system being installed downstream of a Wet Christmas Tree (WCT) on the seabed. The pumping module includes at least one submersible centrifugal pump (SCP... | 04/14/2009 |
| 7490672 | System and method for processing drilling cuttings during offshore drilling A cuttings processing system processes return fluid recovered while drilling a wellbore at an offshore location. The processing system includes a separator having an inlet receiving the return fluid, an accelerator coupled to the inlet that accelerates the return fl... | 02/17/2009 |
| 7490671 | Pipe separator with improved separation A pipe separator is for separation of fluids, for example separation of oil, gas and water in connection with extraction and production of oil and gas from formations under a sea bed. The pipe separator comprises an extended, tubular separator body having a diameter... | 02/17/2009 |
| 7464762 | System for neutralizing the formation of slugs in a riser A system inserted between the base of a riser (5) and a production well flowline for collecting an effluent consisting of at least a gas phase and a liquid phase, includes a capacity (1) including an inlet port for the effluent and two outlet ports, on... | 12/16/2008 |
| 7431081 | Device for removal and filtration of drilling fluid The invention relates to a device for removal and filtration of drilling fluid at top hole drilling, where a suction module (10) comprises an extended, pipe-formed body (30), open at the top and which is arranged to an ocean-bottom penetrating pipe, th... | 10/07/2008 |
| 7370701 | Wellbore completion design to naturally separate water and solids from oil and gas A wellbore completion design is provided, which creates a convective flow action that separates water and sand from hydrocarbons during production of the hydrocarbons from a subterranean formation. A deviated section of the wellbore creates the desired effect. The w... | 05/13/2008 |
| 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 |
| 7341100 | Piggable separation system An inline well fluid separator is movable for pigging operations. The separator assembly has a housing with an inlet port and an outlet port. A separation unit is carried within the housing. The separation unit has an operational position in alignment with the ports... | 03/11/2008 |
| 7331393 | Subsea lubricator device and methods of circulating fluids in a subsea lubricator Subsea lubricator device, comprising a blowout preventer assembly, a tool housing assembly and a stuffing box, intended to be located at a subsea Christmas tree, and methods of circulating fluids in a subsea lubricator. The device comprises a blowout preventer (4... | 02/19/2008 |
| 7314084 | Subsea pumping module system and installation method The present invention contemplates a system comprising a pumping module coupled to an intermediate flow inlet (IFI) wherein said IFI is coupled to a base structure disposed on the flow line that routes production from one or more oil wells, allowing for the quick an... | 01/01/2008 |
| 7287935 | Tendon assembly for mooring offshore structure An offshore system for petroleum production has a buoyant platform. A tendon assembly secures to the platform and extends down to a counterweight located near the lower end. A piling is embedded in the sea floor. A socket at the counterweight telescopingly slides ov... | 10/30/2007 |
| 7273098 | Method for controlling oil and gas well production from multiple wells A method for producing oil or gas from multiple wells, the wells including at least a first well and a second well, with each well using an artificial lift system that includes a plunger associated with a motor valve off time, and first and second identical connecti... | 09/25/2007 |
| 7270185 | Drilling system and method for controlling equivalent circulating density during drilling of wellbores A drilling system for drilling subsea wellbores includes a tubing-conveyed drill bit that passes through a subsea wellhead. Surface supplied drilling fluid flows through the tubing, discharges at the drill bit, returns to the wellhead through a wellbore annulus, and... | 09/18/2007 |
| 7264058 | Arrangement and method for regulating bottom hole pressures when drilling deepwater offshore wells An arrangement and a method to control and regulate the bottom hole pressure in a well during subsea drilling at deep waters: The method involves adjustment of a liquid/gas interface level in a drilling riser up or down. The arrangement comprises a high pressure dri... | 09/04/2007 |
| 7240736 | Drilling and producing deep water subsea wells Subsea wells are drilled and completed with an offshore floating platform in a manner that allows simultaneous work on more than one well. A first well is drilled and casing. Then a tubing hanger is run through a drilling riser and landed in the wellhead housing. Th... | 07/10/2007 |
| 7234524 | Subsea chemical injection unit for additive injection and monitoring system for oilfield operations A system monitors and controls the injection of additives into formation fluids recovered through a subsea well. The system includes a chemical injection unit and a controller positioned at a remote subsea location. The injection unit uses a pump to supply one or mo... | 06/26/2007 |
| 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 |
| 7210530 | Subsea separation system A preferred embodiment of the inventive fluid delivery system comprises a vertical liquid/vapor separator and riser assembly that comprises a multi-phase separator inlet, a vapor outlet and riser, and a liquid outlet port connected to a hydraulically-driven centrifu... | 05/01/2007 |
| 7198108 | Changing the temperature of offshore produced water Water that is produced during offshore hydrocarbon processing, such as hot produced water accompanying hydrocarbons taken from subsea reservoirs, or cold water resulting from heating LNG (liquified natural gas) to convert it to gas, is changed in temperature to be c... | 04/03/2007 |
| 7175748 | Subsea production system A subsea well fluid processing system has a separator for separating heavier and lighter components of well fluid flowing from a subsea well and directing the lighter components to flow to a surface processing facility. A choke is located downstream of the separator... | 02/13/2007 |
| 7152681 | Method and arrangement for treatment of fluid A method utilizes the energy of water that flows out from a high-pressure reservoir. Water and hydrocarbons are separated in a down-hole separator and are brought separately to the seabed. In a first aspect the energy of the water is utilized to inject the water int... | 12/26/2006 |
| 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 |
| 7140441 | Fluid separation method and system A method and a system for separating the phases of a multiphase fluid from one or more wells. The system includes at least one first gravity separator and at least one second gravity separator, and elements for conducting the fluid from the well or wells to the firs... | 11/28/2006 |
| 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 |
| 7134498 | Well drilling and completions system A system for use in down hole operations, the system comprising a wellhead; a BOP ram package connected at one end to the wellhead and having an axial bore extending from the wellhead to the other end; a device above the other end of the BOP ram package for isolatin... | 11/14/2006 |
| 7108070 | Gas-to-liquids facility for fixed offshore hydrocarbon production platforms A GTL facility for a fixed offshore hydrocarbon production platform which comprises a deck attached to a base that is secured to the sea floor. The GTL facility comprises a syngas reactor for converting natural gas into syngas and a liquids production unit for conve... | 09/19/2006 |
| 7097387 | Engineered material buoyancy system and device There is provided a buoyancy system for a structure having at least one component being substantially stationary with respect to the bottom of a water covered area. The system comprises a set of buoyancy modules of engineered materials to apply an identified amount ... | 08/29/2006 |
| 7093661 | Subsea production system Methods and arrangements for production of petroleum products from a subsea well. The methods comprise control of a downhole separator, supplying power fluid to a downhole turbine/pump hydraulic converter, performing pigging of a subsea manifold, providing gas lift ... | 08/22/2006 |
| 7086472 | Device and method of collecting solids from a well Exemplary embodiments include a method and a device for temporary storage of solid particles such as drill cuttings from a hole section for surface casing in a wellbore. In certain embodiments, the device having at least one collecting device placed on the seabed ne... | 08/08/2006 |
| 7048865 | Method of use of a high pressure solid removal system A method for removing particles from a high pressure flow stream entails flowing the high pressure flow stream into an inlet of a high pressure trap and flowing the flow stream from the inlet into a tube in the high pressure trap. The tube is adapted to accelerate t... | 05/23/2006 |
| 7049874 | Digital delaying device A digital delaying device for delaying an input signal includes a ring oscillator, a calibration unit, and at least one delay number calculation unit and delay channel. The ring oscillator includes loop-connected delay cells for outputting an oscillation clock. The ... | 05/23/2006 |
| 7048058 | Subsea system for separating multiphase fluid A subsea system for separating a multiphase fluid emanating from one or more subsea wells, comprising a foundation structure (1) secured to the seabed, a header piping module (2) adapted to be mounted to the foundation structure (1), a separator... | 05/23/2006 |
| 7048060 | Subsea system for processing fluid A subsea system for processing a fluid emanating from one or more subsea wells, comprising a fluid processing circuit and a base module (3) provided with at least one receiver (40) for receiving an insert module (4-8) comprising an applia... | 05/23/2006 |
| 7017506 | Marginal gas transport in offshore production An offshore hydrocarbon production system in which gases are economically stored for transport. After the produced hydrocarbons are separated into liquid (crude oil) and gases, the gases are separated into heavy and light gases. The heavy gases, which consist primar... | 03/28/2006 |
