Multiple Wells Patents (Class 166/366)
  • Patent number: 9650887
    Abstract: A subsea leak detection system for an off-shore operation facility includes a leak detector operatively connected to a controller located on a subsea assembly. The system is provided with a floating member on which the leak detector is suitably attached. The floating member is adapted to be installed and stably positioned, above the assembly.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: May 16, 2017
    Assignee: Aker Subsea AS
    Inventors: Bengt-Åke Albinsson, Lars Timberlid Lundheim, Roy Stensgaard
  • Patent number: 9523266
    Abstract: A downhole perforating system having a cemented-in lower completion including one or more orienting nipples, each orienting nipple having a recess key, and one or more lines or tools carried on the exterior of the lower completion and oriented relative to the recess key. The downhole perforating system also includes a perforating string having one or more blank sections oriented relative to an orienting key that is brought into alignment with the recess key when the perforating string is landed in the orienting nipple. Upon landing, the perforating string can be fired without damaging the lines or tools outside the lower completion.
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: December 20, 2016
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Michele Arena
  • Patent number: 9347304
    Abstract: There is provided a device and method for high speed hydraulic actuation. The method includes adjusting a position of an actuator using a hydraulic pressure regulator. Adjusting the position of the actuator includes increasing pressure on the hydraulic pressure regulator to open the actuator using a first solenoid, or decreasing pressure on the hydraulic pressure regulator to close the actuator using a second solenoid.
    Type: Grant
    Filed: July 5, 2012
    Date of Patent: May 24, 2016
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Mario R. Lugo, Ryan D. Fontenot, Syed M. Rashid Ali
  • Patent number: 9031674
    Abstract: A method of optimizing production of wells using choke control includes generating, for each well, an intermediate solution to optimize the production of each well. The generating includes using an offline model that includes a mixed-integer nonlinear program solver and includes using production curves based on a choke state and a given wellhead pressure. The method further includes calculating, using a network model and the intermediate solution of each well, a current online wellhead pressure for each well. The method further includes setting the intermediate solution as a final solution based on determining that a difference between the current online wellhead pressure of each well and a prior online wellhead pressure of each well is less than a tolerance amount. The method further includes adjusting, using the final solution of each well, at least one operating parameter of the wells.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: May 12, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Kashif Rashid, Suleyman Demirel, Benoit Couet
  • Patent number: 9010438
    Abstract: A fluid treatment system comprises a fluid treatment module having a fluid inlet and first and second fluid outlets. A pump is provided to establish a first pressure differential between the fluid inlet and one of the first and second fluid outlets of the fluid treatment module, and an eductor is provided to establish a second pressure differential between the fluid inlet and the other of the first and second fluid outlets of the fluid treatment module. The pump is adapted to deliver a motive fluid to the eductor.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: April 21, 2015
    Assignee: VWS Westgarth Limited
    Inventors: Wayne Evans, Neville Ernest Lange
  • Patent number: 9004177
    Abstract: A subsea production system, comprising a plurality of wells located on a sea floor, the wells producing a fluid comprising hydrocarbons; a cold flow center on the sea floor, the cold flow center fluidly connected to the plurality of wells; and a production facility on land or on a floating structure, the production facility fluidly connected to the cold flow center; wherein the cold flow center lowers a temperature of the fluid and produces a slurry of the fluid and suspended solids for transportation to the production facility.
    Type: Grant
    Filed: January 8, 2010
    Date of Patent: April 14, 2015
    Assignee: Shell Oil Company
    Inventor: Gregory John Hatton
  • Patent number: 8939213
    Abstract: Systems, devices, and methods for providing proper spacing and alignment of multi-well modular drilling templates and associated wells are provided. An example embodiment of a system includes a primary well upon which a multi-well modular drilling template is landed, and a second well upon which a specially configured spacer device is landed. The spacer device includes an alignment frame which engages guide arms of the template to force the spacer device into proper axial alignment. The spacer device includes an elongated arm and a guide funnel which provide the proper spacing and proper location for inserting a third well. The third well can be used as the central well for a second multi-well modular drilling template.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: January 27, 2015
    Assignee: Vetco Gray Inc.
    Inventors: Sibu Varghese, Christopher Loftin, Edward Rositas, Arjin Nolan, Jesus Aldeguer
  • Patent number: 8925636
    Abstract: A system for sampling production well production fluids from a manifold interface panel on a subsea production manifold. In some embodiments, the system includes a remotely operated vehicle, a skid coupled to the remotely operated vehicle, a sample tank supported on the skid, and a fluid transfer pump operable to convey production fluid from at least one of the production wells through the manifold interface panel into the sample tank.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: January 6, 2015
    Assignee: Cameron International Corporation
    Inventors: Mike Cumming, Alan Dawson, Roger Osborne
  • Patent number: 8919449
    Abstract: A method of drilling and producing from an offshore structure, comprising drilling a first well from the offshore structure with a drilling riser; completing the first well with a first subsurface tree; connecting the first subsurface tree to a manifold; drilling a second well from the offshore structure with a drilling riser; completing the second well with a second subsurface tree; connecting the second subsurface tree to the manifold; and connecting a production riser to the manifold and the offshore structure.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: December 30, 2014
    Assignee: Shell Oil Company
    Inventors: Romulo Gonzalez, Gwo-Tarng Ju, Edward Eugene Shumilak, II
  • Publication number: 20140326463
    Abstract: A mobile water injection system and method for performing waterflooding in offshore reservoirs, and more particularly to enhance oil recovery in marginal offshore reservoirs is disclosed. The mobile water injection system and method include portable equipment, including a submersible pump to recover water from a body of water, a water storage tank, filtration and chemical treatment equipment to treat the recovered water, and an injection pump to pump the treated water at high pressure into the reservoir such that the residual oil is driven to adjacent production wells to increase oil recovery.
    Type: Application
    Filed: July 15, 2014
    Publication date: November 6, 2014
    Applicant: CHEVRON U.S.A. INC.
    Inventors: Akshay Sahni, Jarrad Rexilius
  • Patent number: 8876083
    Abstract: Disclosed herein is a valve. The valve includes a first member having a first port therethrough, a second member in operable communication with the first member having a sealing surface thereon and a second port therethrough that is movable relative to the first member. The valve also has a seal sealingly engaged with the first member and slidably sealingly engagable with the second member, and a support member movably disposed relative to the first member and the second member. The support member has a support surface dimensioned similarly to the sealing surface, and is movable with the second member relative to the first member so that upon such movement the seal is continuously supported by at least one of the sealing surface and the support surface.
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: November 4, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Steven S. Black, Marcus A. Avant
  • Patent number: 8857519
    Abstract: A subsea production and separation system comprising a subsea well drilled into a sea floor; a subsea tree located on the sea floor at a top portion of the subsea well; a manifold located on the sea floor; a well jumper connecting the subsea tree and the manifold; a first sled located on the sea floor; a second sled located on the sea floor; a separator located on the sea floor; a first flowline jumper connecting the manifold to the separator; a second flowline jumper connecting the manifold to the separator; a third flowline jumper connecting the separator to the first sled; a fourth flowline jumper connecting the separator to the second sled; a liquid export line connected to the third flowline jumper; and a gas export line connected to the fourth flowline jumper.
    Type: Grant
    Filed: April 25, 2011
    Date of Patent: October 14, 2014
    Assignee: Shell Oil Company
    Inventor: James Raymond Hale
  • Patent number: 8857523
    Abstract: An offshore oil production system, comprising a structure in a body of water, having a portion extending above a surface of the body of water; a wellhead located at a boom of the body of water; a riser extending from the wellhead to the portion extending above the surface; a primary wellbore extending into a subsea formation beneath the body of water; and at least two secondary wellbores extending further into the subsea formation beneath the body of water and beneath the primary wellbore.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: October 14, 2014
    Assignee: Shell Oil Company
    Inventor: Hon Chung Lau
  • Patent number: 8833463
    Abstract: A whipstock system for drilling a wellbore from a water bottom supported platform having wellbores with conductor pipes disposed through guide slots in a template on the bottom of a body of water includes a whipstock pipe extending from an equipment deck surface on the platform to a stab in sub. The whipstock pipe includes a window and j-slot mechanism for releasably engaging a scab liner. A stab in sub is configured to make mechanical connection between the whipstock pipe and a surface of a wellbore conductor pipe cut proximate the water bottom. The system includes a scab liner extending from the window to the water bottom when the stab in sub is engaged to the cut conductor pipe. The window is disposed above the water bottom. The scab liner configured to enable drilling a wellbore surface hole therethrough to a selected depth of a surface casing.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: September 16, 2014
    Assignee: Apache Corporation
    Inventor: Kyle S. Graves
  • Patent number: 8833462
    Abstract: The disclosure provides a method and system of installing subsea well trees, comprising: creating a glory hole having a depth below a seabed at a well location of a hydrocarbon reservoir; moving a floating offshore platform coupled with a foundation, the platform having a topsides and a caisson with downwardly extending walls defining an inner volume between the walls, the foundation coupled to the caisson walls, and the caisson walls having adjustable buoyancy; lowering the offshore platform with the foundation into the glory hole; drilling from the topsides into the hydrocarbon reservoir below the foundation to create a well; installing a well tree on the well, the well tree being disposed in the glory hole below the height of the seabed; coupling the well tree to a flow line; releasing the offshore platform from the foundation; and reusing the offshore platform to install other foundations at other predetermined well locations.
    Type: Grant
    Filed: September 17, 2012
    Date of Patent: September 16, 2014
    Assignee: Technip France
    Inventors: Jason Muise, Andrew J. Blundon
  • Patent number: 8813854
    Abstract: A mobile water injection system and method for performing waterflooding in offshore reservoirs, and more particularly to enhance oil recovery in marginal offshore reservoirs is disclosed. The mobile water injection system and method include portable equipment, including a submersible pump to recover water from a body of water, a water storage tank, filtration and chemical treatment equipment to treat the recovered water, and an injection pump to pump the treated water at high pressure into the reservoir such that the residual oil is driven to adjacent production wells to increase oil recovery.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: August 26, 2014
    Assignee: Chevron U.S.A. Inc.
    Inventors: Akshay Sahni, Jarrad Rexilius
  • Patent number: 8757270
    Abstract: A subsea oil and/or gas production system comprises a host production facility and a plurality of subsea wells. A fluid conveying network is provided that connects each subsea well to the host production facility. A separate electrical power and data network is provided for conveying direct current electrical power and data, operatively connected to each subsea well for providing each subsea well with data transfer and electrical power services. The use of direct current ensures that the electrical power and data network can provide power over much greater distances than currently available, and the use of separate networks for conveying fluids and for providing electrical power and data transfer allows for a much more flexible system.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: June 24, 2014
    Assignee: Statoil Petroleum AS
    Inventor: Karl-Atle Stenevik
  • Publication number: 20140144647
    Abstract: There is herein described the prevention of hydrates and the provision of a Relief Well in an oil and gas Well. More particularly, there is described the prevention of hydrates in an oil and gas Well by utilizing the latent heat in the sub-soil and providing Subterranean Channels to facilitate the provision of Relief Well access.
    Type: Application
    Filed: November 12, 2013
    Publication date: May 29, 2014
    Inventor: Robert Francis McAnally
  • Patent number: 8720581
    Abstract: A production flow base (1) for possible future branched connection onto a production manifold (10) in order to provide for the connection of at least two production jumpers extending from respective subsea Xmas trees onto the production manifold (10), is shown. The production flow base (1) is arranged as a retrofit module connectable to a single inboard hub (11) prearranged on the production manifold (10). The production flow base (1) includes a frame structure (2), piping (3), at least one connector (4) and guiding means (9). The frame structure (2) is arranged for landing on a supporting arrangement (12) projecting from a manifold structure (10). The piping (3) forms a branch terminating in a connector (4) and at least two outboard hubs (6).
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: May 13, 2014
    Assignee: Aker Subsea AS
    Inventor: Geir Olav Berg
  • Patent number: 8627891
    Abstract: The invention relates to a manifold structure that includes a frame construction (1), a number of pipes (2), a pipe bend and possible valves, deployed in a pipe system having a number of pipe terminations projecting from the frame construction. The frame construction (1) is designed with a number of support brackets (5) for respective coupling parts associated with said pipe terminations. Each support bracket (5) is made as a separate, standardized unit that includes several securing means for releasable assembly to the frame construction, where each securing means is arranged for defined adjustability in height and lateral direction for adaption to a preinstalled pipe termination.
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: January 14, 2014
    Assignee: Aker Subsea AS
    Inventor: Sigvard Omvik
  • Publication number: 20130319681
    Abstract: An offshore oil production system, comprising a structure in a body of water, having a portion extending above a surface of the body of water; a first surface wellhead located at a top of the body of water; a second surface wellhead located at a top of the body of water; a first wellhead located at a bottom of the body of water; a second wellhead located at a bottom of the body of water; a first riser extending from the first wellhead to the first surface wellhead; and a second riser extending from the second wellhead to the second surface wellhead; wherein the first surface wellhead is a distance of less than about 12 feet from the second surface wellhead.
    Type: Application
    Filed: February 15, 2012
    Publication date: December 5, 2013
    Inventors: Glenn Martin Wald, Mathew Jay Jabs, Hon Chung Lau, Maartje Van Krieken, David Alex Knoll, Yile Li, Raymond Louis Jean Pierre Fonk, Quentin Terry Mcglothlin, JR.
  • Patent number: 8581741
    Abstract: A method of enabling communication between components of a hydrocarbon extraction plant, the plant having an underwater hydrocarbon extraction installation including at least one hydrocarbon extraction well with an associated tree, comprises providing a plurality of RF communication means at respective components of the installation.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: November 12, 2013
    Assignee: Vetco Gray Controls Limited
    Inventors: Steven Lewis Charles Simpson, Peter John Davey
  • Publication number: 20130240215
    Abstract: An offshore oil production system, comprising a structure in a body of water, having a portion extending above a surface of the body of water; a wellhead located at a boom of the body of water; a riser extending from the wellhead to the portion extending above the surface; a primary wellbore extending into a subsea formation beneath the body of water; and at least two secondary wellbores extending further into the subsea formation beneath the body of water and beneath the primary wellbore.
    Type: Application
    Filed: October 26, 2011
    Publication date: September 19, 2013
    Inventor: Hon Chung Lau
  • Patent number: 8430169
    Abstract: A method for managing hydrates in a subsea production system is provided. The production system includes a host production facility, a control umbilical, at least one subsea production well, and a single production line. The method generally comprises producing hydrocarbon fluids from the at least one subsea production well and through the production line, and then shutting in the production line. In addition, the method includes the steps of depressurizing the production line to substantially reduce a solution gas concentration in the produced hydrocarbon fluids, and then repressurizing the production line to urge any remaining gas in the free gas phase within the production line back into solution. The method also includes displacing production fluids within the production line by moving displacement fluids from a service line within the umbilical line and into the production line. The displacement fluids preferably comprise a hydrocarbon-based fluid having a low dosage hydrate inhibitor (LDHI).
    Type: Grant
    Filed: August 21, 2008
    Date of Patent: April 30, 2013
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Richard F. Stoisits, David C. Lucas, Larry D. Talley, Donald P. Shatto, Jiyong Cai
  • Publication number: 20130062056
    Abstract: A well completion system for monitoring multiple annuluses in a well, including an “A” annulus (between the production tubing and production casing) and a “B” annulus (between the production casing and intermediate casing). The system includes a tubing hanger suspension assembly that seals and separates an upper area of the production annulus. Port(s) in the production casing above the seal provide access between the “B” annulus and the separated area. The system also includes a moveable sleeve that allows fluid communication through the port(s) when in an open position, but not in a closed position. The tubing hanger suspension assembly includes means for moving the sleeve from the closed position to the open position. In addition, the tubing hanger housing includes “A” and “B” annulus passageways in communication with the production annulus and the separated area, respectively.
    Type: Application
    Filed: April 16, 2012
    Publication date: March 14, 2013
    Applicant: Argus Subsea, Inc.
    Inventors: Earl Broussard, Richard Jolly
  • Patent number: 8393399
    Abstract: System and method for controlling a blowout preventer (BOP) stack and a tree attached to a wellhead of a well. The system includes at least a MUX pod configured to receive electrical signals and a fluid under pressure, and to provide a first set of functions to the LMRP part, and a second set of functions to a lower BOP part; a pod extension module configured to receive the fluid under pressure from the MUX pod, and to provide a third set of functions to the tree based on the received fluid under pressure; and a control part configured to be attached to the tree and to communicate with the pod extension module. The third set of functions for the tree is different from the second set of functions provided to the lower BOP part.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: March 12, 2013
    Assignee: Hydril USA Manufacturing LLC
    Inventor: Robert Arnold Judge
  • Patent number: 8376050
    Abstract: A system for sampling production well production fluids from a manifold interface panel on a subsea production manifold. In some embodiments, the system includes a remotely operated vehicle, a skid coupled to the remotely operated vehicle, a sample tank supported on the skid, and a fluid transfer pump operable to convey production fluid from at least one of the production wells through the manifold interface panel into the sample tank.
    Type: Grant
    Filed: June 24, 2010
    Date of Patent: February 19, 2013
    Assignee: Cameron International Corporation
    Inventors: Mike Cumming, Alan Dawson, Roger Osborne
  • Patent number: 8235124
    Abstract: A variable buoyancy subsea running tool for use with subsea transportable devices, such as a tree cap. The buoyancy of the running tool may be varied through fluid or gas displacement in one or more containers. Alternatively, the running tool may be configured with a buoy that has static buoyancy, with the buoyancy of the running tool being varied through the addition of a counterweight. The running tool can be used to install or uninstall a tree cap on a subsea tree. Installation of a tree cap may be actuated by a remotely operated vehicle. Additionally, the running tool may be moved by a remotely operated vehicle and may have additional features such as a position locator device.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: August 7, 2012
    Assignee: Aker Subsea Inc.
    Inventors: Glen H. Cuiper, Paulo Cezar Silva Paulo
  • Publication number: 20120103624
    Abstract: A system comprising a floating host located over a first drilling center in a body of water, the floating host comprising drilling facilities; a floating spar located over a second drilling center; a first fluid transfer conduit between the second drilling center and the spar; and a second fluid transfer conduit between the spar and the floating host.
    Type: Application
    Filed: October 25, 2011
    Publication date: May 3, 2012
    Applicant: SHELL OIL COMPANY
    Inventor: Daniel E. RUDGE
  • Patent number: 8122965
    Abstract: Methods for developing an offshore field comprising deploying a lead drilling and production vessel to a offshore field to drill and complete at least one well. Production from the at least one well is initiated and evaluated. A secondary production vessel is selected based upon the evaluated production and is deployed to the offshore field to replace the lead drilling and production vessel and support production of the at least one well.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: February 28, 2012
    Assignee: Horton Wison Deepwater, Inc.
    Inventors: Edward E. Horton, III, James V. Maher
  • Publication number: 20120031621
    Abstract: Method of managing hydrates in a subsea production system that includes a host production facility, one or more producers, one or more water injectors, a water injection line, and a single production line for directing production fluids from the producers to the host production facility. The method comprises placing a pig in the subsea production system, shutting in production from the producers, and injecting a displacement fluid into the subsea production system in order to displace production fluids in the production line. The method also includes applying electrically resistive heat along a selected portion of the single production line to maintain production fluids within the production line at a temperature above a hydrate formation temperature after production has been shut in.
    Type: Application
    Filed: October 14, 2011
    Publication date: February 9, 2012
    Inventor: Tracy A. Fowler
  • Patent number: 8111502
    Abstract: An arrangement related to subsea electric power distributing AC-system and adapted for a subsea application. The arrangement is enclosed in a watertight casing. The casing exposes a main power input connection, adapted for watertight co-ordination with a first subsea cable and a main power output connection, adapted for a watertight co-ordination with a second subsea cable. The second subsea cable is adapted for a power supply to an AC-current and AC-voltage adapted device. The arrangement includes interconnected: a voltage regulator connected to the first cable, and a NO-load switching unit connected to the second cable, and a control unit. The control unit is adapted, in a first operative mode, to regulate the output AC-voltage from the voltage regulator towards and to zero, or at least almost to zero, and in a second subsequent operative mode, to bring the NO-load switching unit from an ON-position to an OFF-position or vice versa.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: February 7, 2012
    Assignee: Vetco Gray Scandinavia AS
    Inventor: Svend Rocke
  • Publication number: 20110303417
    Abstract: Subsea well template comprising a plurality of well slots arranged adjacent to a manifold reception space, said template comprising a plurality of template hatches for protection of well components, including a Xmas tree. Said hatches comprise at least a top protection cover and a side protection panel. The hatches are arranged to pivot between a closed and open position, about a pivot axis arranged at a lower end of the hatch. When in an open position, the well template exhibits absence of a framework extending up towards the top of the template.
    Type: Application
    Filed: March 9, 2010
    Publication date: December 15, 2011
    Inventor: Knut Møgedal
  • Publication number: 20110290497
    Abstract: A subsea oil and/or gas production system comprises a host production facility and a plurality of subsea wells. A fluid conveying network is provided that connects each subsea well to the host production facility. A separate electrical power and data network is provided for conveying direct current electrical power and data, operatively connected to each subsea well for providing each subsea well with data transfer and electrical power services. The use of direct current ensures that the electrical power and data network can provide power over much greater distances than currently available, and the use of separate networks for conveying fluids and for providing electrical power and data transfer allows for a much more flexible system.
    Type: Application
    Filed: May 28, 2010
    Publication date: December 1, 2011
    Inventor: Karl-Atle Stenevik
  • Patent number: 8047296
    Abstract: The technical challenges for a smooth transition between using both a thermodynamic hydrate inhibitor (THI) and a kinetic hydrate inhibitor (KHI) to simply using only the KHI in multiple tie-in gas natural gas production systems is solved by adding more THI in a first pipeline leg of the production system while ceasing adding THI in a second pipeline leg of the system. Further, more KHI is added into the second leg of the system, and subsequently THI is gradually and/or slowly reduced in the remaining legs of the system until only KHI is being injected, after which the KHI amount in all legs may be reduced to the equilibrium or steady-state levels.
    Type: Grant
    Filed: July 22, 2009
    Date of Patent: November 1, 2011
    Assignee: Baker Hughes Incorporated
    Inventors: Jun Tian, Timothy Z. Garza
  • Patent number: 7958938
    Abstract: A system for supporting multiple-well-site, offshore, hydrocarbon-bearing fields, each well-site has one or more wells. In general, the system first comprises a floating vessel that is relocatable from a first subsea well-site to a second subsea well-site. The system also comprises two separate systems: (1) an operations control system for providing subsea well-site operations such as power and communications; and (2) an intervention system for conducting intervention services to an individual subsea well such as workover services and maintenance services. The operations system may provide control to wells and other subsea equipment at either the first well-site or the second well-site, regardless of the location of the floating vessel. The intervention system may provide workover and/or maintenance to subsea equipment or individual wells at the well-site at which it is located.
    Type: Grant
    Filed: February 23, 2005
    Date of Patent: June 14, 2011
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Calvin W. Crossley, Tracy A. Fowler, M. Sidney Glasscock, Matthew N. Greer, Roald T. Lokken, Dinesh R. Pejaver, W. Brett Wilson, David B. Yost
  • Publication number: 20110132615
    Abstract: A method of drilling and producing from an offshore structure, comprising drilling a first well from the offshore structure with a drilling riser; completing the first well with a first subsurface tree; connecting the first subsurface tree to a manifold; drilling a second well from the offshore structure with a drilling riser; completing the second well with a second subsurface tree; connecting the second subsurface tree to the manifold; and connecting a production riser to the manifold and the offshore structure.
    Type: Application
    Filed: May 29, 2009
    Publication date: June 9, 2011
    Inventors: Romulo Gonzalez, Gwo-Tarng Ju, Edward Eugene Shumilak, II
  • Patent number: 7931090
    Abstract: A technique is provided for control of subsea well systems. The technique utilizes a subsea controller coupled to a plurality of subsea well system components to allow localized control of the subsea well system. The subsea controller can be used in a variety of functional applications, such as balancing power distribution to subsea components.
    Type: Grant
    Filed: November 15, 2005
    Date of Patent: April 26, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Eric Smedstad, Rory MacKenzie, John Kerr, Randall A. Shepler, Rohitashva Singh
  • Patent number: 7921917
    Abstract: Methods for deploying a subsea blowout preventer stack system comprising a lower marine riser package, a blowout preventer stack with a first ram blowout preventer, and an additional blowout preventer package releasably coupled to the blowout preventer stack and comprising a second ram blowout preventer. The subsea blowout preventer stack assembly can be deployed by coupling a drilling riser to the lower marine riser package that is releasably connected to the blowout preventer stack. The lower marine riser package and blowout preventer stack are then toward a subsea wellhead and then landed on the additional blowout preventer package that is coupled to the subsea wellhead.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: April 12, 2011
    Assignee: Cameron International Corporation
    Inventors: Johnnie E. Kotrla, Melvyn F. Whitby, David J. McWhorter, Glenn J. Chiasson
  • Patent number: 7921919
    Abstract: A system comprising a surface installation in position above a plurality of subsea wells disposed within the watch circle of the surface installation. A plurality of flowlines directly couple at least one of the plurality of subsea wells to the surface installation. A control station, a hydraulic power unit, and an injection unit are disposed on the surface installation. A distribution body is disposed on the seafloor and is coupled to each of the control station, hydraulic power unit, and the injection unit via one or more umbilicals. A first wellhead component is disposed on one of the subsea wells and is coupled to the distribution body via one or more flying leads that provide electrical, hydraulic, and fluid communication. A second wellhead component is disposed on another one of the subsea wells and coupled to the distribution body via one or more flying leads that provide electrical, hydraulic, and fluid communication.
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: April 12, 2011
    Assignee: Horton Technologies, LLC
    Inventor: Edward E. Horton, III
  • Patent number: 7918283
    Abstract: A system for assuring subsea hydrocarbon production flow in pipelines by chilling the hydrocarbon production flow in a heat exchanger and causing solids to form, periodically removing deposits and placing them in a slurry utilizing a closed loop pig launching and receiving systems.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: April 5, 2011
    Assignee: Shell Oil Company
    Inventors: Szabolcs Roland Balkanyi, James George Broze, Joseph Oscar Esparza, Gregory John Hatton, Ajay Praful Mehta, Chien Kuei Tsai, Moye Wicks, III, George John Zabaras
  • Patent number: 7914266
    Abstract: A booster pumping system is disclosed for producing hydrocarbons from a subsea production well. The booster pumping system includes: (1) a submersible pump hydraulically connected to the production well to provide energy to the hydrocarbon flow and boost production to another destination such as a subsea production facility or the surface via a riser; (2) an inlet conduit to receive the flow from the production well and isolate the flow from the dummy wellbore and direct the flow to the intake of the pump; and (3) a motor exposed to the dummy wellbore to drive the pump. The dummy wellbore may be flooded or circulated with seawater to cool the motor.
    Type: Grant
    Filed: March 21, 2005
    Date of Patent: March 29, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: John A. Kerr, Michael Birch, Joseph C. Scranton, Tauna Leonardi, Randall S. Vessels
  • Patent number: 7798233
    Abstract: The present invention relates to overpressure protection systems and methods for use on a production system for transferring hydrocarbons from a well on the seafloor to a vessel floating on the surface of the sea. The production system includes a subsea well in fluid communication with a turret buoy through a production flowline and riser system. The turret buoy is capable of connecting to a swivel located on a floating vessel. The overpressure protection device is positioned upstream of the swivel, to prevent overpressure of the production swivel and downstream components located on the floating vessel. The device may include one or more shut down valves, one or more sensors, an actuator assembly, and a control processor.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: September 21, 2010
    Assignee: Chevron U.S.A. Inc.
    Inventors: Jeremiah Daniel, Jin-Sug Chung, Ramanathan Ramaswamy, Joseph M. Gebara, John L. Upchurch
  • Patent number: 7793725
    Abstract: The present invention relates to overpressure protection systems and methods for use on a production system for transferring hydrocarbons from a well on the seafloor to a vessel floating on the surface of the sea. The production system includes a subsea well in fluid communication with a turret buoy through a production flowline and riser system. The turret buoy is capable of connecting to a swivel located on a floating vessel. The overpressure protection device is positioned upstream of the swivel, to prevent overpressure of the production swivel and downstream components located on the floating vessel. The device may include one or more shut down valves, one or more sensors, an actuator assembly, and a control processor. Each shut down valve and sensor is coupled to a production flowline. Each of the sensors is capable of generating a signal based upon a pressure sensed within the production flowline. The actuator assembly is connected to each of the shut down valves for operating the shut down valves.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: September 14, 2010
    Assignee: Chevron U.S.A. Inc.
    Inventors: Jeremiah Daniel, Jin-Sug Chung, Ramanathan Ramaswamy, Joseph M. Gebara, John L. Upchurch
  • Patent number: 7793726
    Abstract: A marine riser system for transferring fluid between a well on the seafloor and a vessel floating on the surface of the sea. The riser system has a turret buoy capable of connecting to a floating vessel; two or more hybrid risers, each of the hybrid risers having a vertical riser, a riser buoy attached to the upper portion of the vertical riser and a flexible jumper connecting the riser buoy to the turret buoy, and wherein the hybrid risers are secured to the seafloor. A flowline may connect a lower portion of each of the vertical risers to a subsea manifold, which interconnects the flowline and a subsea well. The subsea manifold is capable of controlling the flow to or from a subsea well. The hybrid risers are positioned about the turret buoy so that the turret buoy is horizontally balanced while disconnected from a vessel. In another embodiment, the marine riser system is capable of directing a fluid from the floating vessel to a subsea export flowline.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: September 14, 2010
    Assignee: Chevron U.S.A. Inc.
    Inventors: Jeremiah Daniel, James E. Dailey, Ruxin Song
  • Patent number: 7793724
    Abstract: An improved subsea manifold system that is capable of being used in an early production system for producing hydrocarbons from a plurality of wells from a common riser system. The subsea manifold is able to control the fluid from a multiple of subsea wet-tree wells while at the same time giving the operator the option to isolate production from a single subsea well for production evaluation. The subsea manifold also includes a pigging loop which enables efficient pigging of the flowline(s) of the early production system.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: September 14, 2010
    Assignee: Chevron U.S.A Inc.
    Inventors: Jeremiah Daniel, James E. Dailey
  • Patent number: 7721807
    Abstract: A method for managing hydrates in a subsea production system is provided. The system has at least one producing subsea well, a jumper for delivering produced fluids from the subsea well to a manifold, a production line for delivering produced fluids to a production gathering facility, and an umbilical for delivering chemicals to the manifold. The subsea well has been shut in, leaving produced fluids in a substantially uninhibited state. The method generally comprises the steps of pumping a displacement fluid into the chemical injection tubing, pumping the displacement fluid through a chemical injection tubing provided in the umbilical, further pumping the displacement fluid through the manifold and into the production line, and pumping the displacement fluid through the production line so as to displace the produced fluids before hydrate formation may begin. Preferably, a chemical inhibitor is placed in the chemical injection tubing before the displacement fluid is pumped into the chemical injection tubing.
    Type: Grant
    Filed: August 11, 2005
    Date of Patent: May 25, 2010
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Richard F. Stoisits, David C. Lucas, Jon K. Sonka
  • Publication number: 20100032164
    Abstract: Sub-sea processing system for the production of oil and/or gas from one or more production wells (1), especially wells producing heavy oil on deep water and with high viscosity. The system includes, beyond the production well/s (1), one or more injection wells (2) for the injection of produced water, a separator (3), a production pump (4), a water injection and circulation pump (5) and a heating arrangement (6). A water circulation and injection pipe loop (7) is provided to interconnect the separator (3), the injection and circulation pump (5), the heating arrangement (6), the flow control device (11) and the wells (1, 2) enabling circulation of heated water to the wells (1,2) via the separator (3) and heating arrangement (6).
    Type: Application
    Filed: October 19, 2007
    Publication date: February 11, 2010
    Inventor: William Bakke
  • Publication number: 20090314495
    Abstract: A system comprising a mobile offshore drilling unit, a first group of wells drilled by the mobile offshore drilling unit, a second group of wells drilled by the mobile offshore drilling unit comprises processing equipment adapted to process production from the first group of wells and the second group
    Type: Application
    Filed: September 19, 2007
    Publication date: December 24, 2009
    Inventors: Walter Edward Schott, III, Adrian Paul Williams
  • Patent number: 7628224
    Abstract: A method and apparatus for conducting simultaneous drilling and production are provided. The apparatus can include a ship shape floating vessel, wherein the ship shape floating vessel includes at least two drilling derricks, at least two drilling modules, and at least one production module, all situated on the upper surface of the ship shape floating vessel. The drilling modules are adapted for conducting drilling operations; the production module is adapted for conducting production operations. The apparatus can include at least two marine risers, wherein each marine riser depends from a drilling or production module toward a hydrocarbon bearing zone or sea floor and is adapted for conducting drilling and/or production operations; at least one production turret located on the lower surface of the ship shape floating vessel; and at least one production riser, wherein the production riser depends from the production turret, extends toward the sea floor, and is adapted for conducting production operations.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: December 8, 2009
    Assignee: Kellogg Brown & Root LLC
    Inventors: Richard D'Souza, Drew Linden Krehbiel