Separator Patents (Class 166/357)
  • Patent number: 10119384
    Abstract: A device for use in recovery of gas trapped by fluid and suspended solids in a gas or oil well includes a body defining a cavity with a cap at its upper end and an opening for entry of fluid at its bottom end. A lower valve controls fluid flow into, and an upper valve controls flow out of, the cavity. Pressurized gas pushes downward on fluid in the cavity in a compression stroke which closes the lower valve and opens the upper valve. Gas is exhausted from the cavity during an exhaust stroke. An effluent line allows exit of the fluid and suspended solids during the compression stroke. A probe line provides electrical power to a pair of probes for initiating and halting entry of the stream of pressurized gas into the cavity.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: November 6, 2018
    Assignee: OPTIMUM PETROLEUM SERVICES INC.
    Inventor: James G. Gettis
  • Patent number: 9376893
    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: August 21, 2015
    Date of Patent: June 28, 2016
    Assignee: Statoil Petroleum AS
    Inventor: Karl-Atle Stenevik
  • Patent number: 9316054
    Abstract: A method for drilling a subsea well from a rig through a subsea wellhead below the rig includes employing a single gradient or dual gradient drilling system that includes a drill string that extends from the rig into the well and surface mud pumps for pumping drilling fluid through the drill string and into a well annulus of the well. The drilling system includes a subsea rotating device for conducting the drilling fluid from the well annulus and through a solids processing unit. A subsea pump then conducts the drilling fluid from the solids processing unit to a return line back to the rig. The surface mud pump and subsea pump are staged in coordination to trap pressure and/or remove pressure in the well annulus to maintain a selected pressure gradient in the well annulus.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: April 19, 2016
    Assignee: Chevron U.S.A. Inc.
    Inventors: Charles W. Weinstock, Mingqin Duan
  • Patent number: 9121231
    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 8, 2014
    Date of Patent: September 1, 2015
    Assignee: STATOIL PETROLEUM AS
    Inventor: Karl-Atle Stenevik
  • Patent number: 9038734
    Abstract: A system and method are disclosed for containing an underwater gas or oil leak. The system and method may include a vortex device comprising a vortex chamber, a high pressure inlet tangentially engaging the vortex chamber, a low pressure inlet axially engaging the vortex chamber, and a low pressure outlet axially engaging the vortex chamber opposite the low pressure inlet. The vortex device may be positioned underwater proximate an underwater leak. A vortex may be generated within the vortex device. The vortex device may then collect a leak flow issuing from the underwater leak. The vortex device may collect the leak flow via the low pressure inlet, the high pressure inlet, or both.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: May 26, 2015
    Inventor: Jeffrey L. Beck
  • Publication number: 20150136411
    Abstract: A slug mitigation system for subsea pipelines includes a riser located between a low level and an upper (above sea-) level of a pipeline, where an inline separator, e.g. an “I-SEP”, is located upstream of a first stage separator. A throttling valve or fixed restriction is located downstream or upstream in series with the inline separator. Further aspects may also include a surface jet pump upstream of the in-line separator and/or a cyclonic separator downstream of the in-line separator.
    Type: Application
    Filed: November 13, 2014
    Publication date: May 21, 2015
    Inventors: Mirza Najam Ali Beg, Syed Mahmood Peeran, Mir Mahmood Sarshar, Rhodri John Jones
  • Patent number: 9032987
    Abstract: The invention relates to a wet gas compression system comprising a compact flow conditioner (21), intended to be placed below sea level in close vicinity to a well head or on a dry installation, said flow conditioner (21) being intended to receive a multi-phase flow through a supply pipe (11) from a sub sea well for further transport of such hydrocarbons to a multi-phase receiving plant, and where preferably avoid sand accumulation or remove as much sand as possible from the multi-phase flow, the gas (G) and the liquid (L) being separated in the flow conditioner (21) whereupon the separated gas (G) and liquid (L) are re-assembled and enters a multi-phase meter (46) prior to boosting by means of a compressor (22). In the combined multi-phase pump and compressor unit (22), as an integrated unit, comprises a combined multi-phase pump and compressor unit (22) functioning on the centrifugal principle, used for trans-porting liquid and gas from a flow conditioner (21) to a remote multi-phase receiving plant.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: May 19, 2015
    Assignee: STATOIL PETROLEUM AS
    Inventors: Tor Bjørge, Lars Brenne, Harald Underbakke, Bjorn-André Egerdahl, Rune Mode Ramberg, William Bakke
  • 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: 9010440
    Abstract: Embodiments of the present invention generally relate to methods and apparatus for centrifugal separation. In one embodiment, a separator includes an outer tubular having ends sealed from the environment and an inner tubular. The inner tubular is disposed within the outer tubular, has ends in fluid communication with a bore of the outer tubular, and is attached to the outer tubular. The separator further includes an inlet. The inlet is disposed through a wall of the outer tubular, in fluid communication with a bore of the inner tubular, and tangentially attached to the inner tubular so that fluid flow from the inlet to the inner tubular is centrifugally accelerated. The separator further includes a gas outlet in fluid communication with the outer tubular bore; and a liquid outlet in fluid communication with the outer tubular bore.
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: April 21, 2015
    Assignee: Weatherford/Lamb, Inc.
    Inventors: George Joel Rodger, Denman L. Cloudt, Jr.
  • Publication number: 20150101820
    Abstract: A subsea system and an oil/gas outlet arrangement for splitting of oil and gas. The subsea system comprising a separator (1), the separator (1) comprising; at least one well flow inlet (13) for a multiphase flow mixture of at least oil and gas, an oil/gas outlet arrangement (15) arranged in a distance from the well flow inlet (13) over which distance the multiphase flow mixture separates in at least an oil phase (O) and a gas phase (G), the oil/gas outlet arrangement (15) comprising; at least one conical crown device (2), the conical crown device (2) having an outer wall with at least one cutout (4) extending through said outer wall, through which cutouts (4) the oil and gas flow into the crown device (2), each crown device (2) is in fluid connection with at least one fluid outlet (5, 6), and wherein the oil/gas outlet arrangement (15) comprises at least two fluid outlets (5, 6).
    Type: Application
    Filed: March 11, 2013
    Publication date: April 16, 2015
    Inventors: Lachlan McKenzie, Steinar Eriksen, Marit Storvik
  • 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
  • Publication number: 20150090124
    Abstract: A method of producing oil and gas from a gathering manifold or a well. The method includes the steps of channeling field production into a sealed vessel through an inlet pipe, and permitting oil and gas components of the field production to separate naturally from water and other fluids within the vessel. The method further includes the steps of evacuating the separated oil and gas from the vessel via pipelines attached to the vessel at locations corresponding to the separated oil and gas, and pumping seawater into the vessel to pressurize the vessel and thereby aid in the production of oil and gas from the vessel.
    Type: Application
    Filed: September 25, 2014
    Publication date: April 2, 2015
    Inventor: Mari Hussain ALQAHTANI
  • Patent number: 8978771
    Abstract: Systems and methods include using a subsea machine for separating a mixture received from a seabed well. The subsea machine includes: a chamber configured to receive and separate by gravity the mixture received from the seabed well. The chamber includes: a housing configured to contain the mixture received from the undersea well during separation, and a piston provided inside the housing and separating the housing into a top section and a bottom section. The piston is configured to move in a first direction along an axis to create more space in the top section for receiving the mixture from the seabed well and to move in a second opposite direction along the axis for removing the mixture from the chamber after separation has occurred.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: March 17, 2015
    Assignee: Nuovo Pignone S.p.A.
    Inventors: Sergio Palomba, Simone Billi, Fabrizio Mammoliti, Andrea Masi, Alessandro Pagliantini
  • Publication number: 20150068758
    Abstract: A method of operating a system for handling an influx of gas into a marine riser during the drilling of a well bore includes the steps of operating a first riser closure apparatus to close the riser at a first point above a flow spool provided in the riser, there being a riser gas handling line extending from the riser at the flow spool to a riser gas handling manifold, operating a second riser closure apparatus to close the riser at a second point below the flow spool, pumping fluid into an inlet line which extends into the riser at a point above the second point but below the flow spool, and operating a choke provided in the riser gas handling manifold to maintain the pressure in the inlet line or the riser at a substantially constant pressure.
    Type: Application
    Filed: April 10, 2013
    Publication date: March 12, 2015
    Applicant: MANAGED PRESSURE OPERATIONS PTE LTD
    Inventors: Christian Leuchtenberg, Michael Chandra, Carlos Goncalves
  • 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
  • Patent number: 8887813
    Abstract: A system and method are disclosed for containing an underwater gas or oil leak. The system and method may include a vortex device comprising a vortex chamber, a high pressure inlet tangentially engaging the vortex chamber, a low pressure inlet axially engaging the vortex chamber, and a low pressure outlet axially engaging the vortex chamber opposite the low pressure inlet. The vortex device may be positioned underwater proximate an underwater leak. A vortex may be generated within the vortex device. The vortex device may then collect a leak flow issuing from the underwater leak. In certain embodiments, the vortex device may collect the leak flow via the low pressure inlet. In other embodiments, the vortex device may collect the leak from via the high pressure inlet.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: November 18, 2014
    Inventor: Jeffrey L. Beck
  • 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: 8801938
    Abstract: An apparatus, method, and system for recovering oil from a submerged oil source, wherein the system includes a submerged conduit having at least two openings, with a first opening capable of being located in proximity of a leak in order to capture leaking oil, and with a second opening capable of communicating captured leaking oil to another location. A natural gas separator, coupled to the submerged conduit separates the boiling vapor phase natural gas from the captured oil thereby outputting oil with water contaminant. An oil/water separator coupled to the natural gas separator then separates out the contaminant water, resulting in a processed recovered oil product for storage and subsequent refinement. The flow to capture the leak is induced by generating a lower pressure at nozzle in the conduit via power jet, air lift, pumping of fluid out of conduit close to sea level, or other methods.
    Type: Grant
    Filed: July 3, 2011
    Date of Patent: August 12, 2014
    Inventor: Dana R. Allen
  • Patent number: 8783359
    Abstract: An apparatus, system and method is disclosed for processing geological solids or wellbore cuttings generated by excavation or drilling under a body of water. An apparatus for processing solids in association with a riser may employ a solids processing apparatus having a central cavity that is substantially free of mechanical obstructions. The central cavity may be positioned in-line with the riser. The apparatus may be adapted for receiving solids within the central cavity and reducing the particle size of the solids by action of a cutter assembly which is positioned outside of the central cavity. The cut and processed solids may be pumped to the surface of the water.
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: July 22, 2014
    Assignee: Chevron U.S.A. Inc.
    Inventor: Larry D. Reed
  • Patent number: 8753517
    Abstract: A method and apparatus for removing metallic material from a circulating well fluid stream provides a treatment vessel that is divided into first and second sections. Each of the sections includes a magnetic field that can be in the form of one or more magnets. In one embodiment, multiple magnets are provided in each of the sections. Manifolds attach to an influent and to an effluent of the treatment vessel. Each manifold enables selective transfer of fluid to either of the selected sections. Similarly, discharge of circulating fluid can be from either of the sections via a discharge manifold. The treatment vessel enables continuous treatment by valving fluid flow so that only one section need be used at a time in order that the other section could be serviced for removing collected metallic material from the magnetic field or from the magnets.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: June 17, 2014
    Assignee: Petroleum Specialty Rental, LLC
    Inventors: Pat Williamson, Homer Boudreaux, Steve Callegari, Steve Callegari, Jr., Larry Foley, Raphael Fontenot
  • Publication number: 20140158364
    Abstract: A method of separating a multiphase fluid, the fluid including a relatively high density component and a relatively low density component, that includes introducing the fluid into a separation region; imparting a rotational movement into the multiphase fluid; forming an outer annular region of rotating fluid of predetermined thickness within the separation region; and forming and maintaining a core of fluid in an inner region. Fluid entering the separation vessel is directed into the outer annular region and the thickness of the outer annular region is such that the high density component is concentrated and substantially contained within this region, the low density component being concentrated in the rotating core. A separation system employing the method is also provided. The method and system are particularly suitable for the separation of solid debris from the fluids produced by a subterranean oil or gas well at wellhead flow pressure.
    Type: Application
    Filed: November 27, 2013
    Publication date: June 12, 2014
    Applicant: Cameron International Corporation
    Inventor: Hans Paul Hopper
  • Patent number: 8739882
    Abstract: The present invention regards a subsea cooling unit having an inlet for a hot fluid and an outlet for cooled fluid, the cooling unit comprising a number of coils exposed to seawater, and means for generating a flow of seawater past the coils, where the means for generating the flow of seawater comprises a propeller and a rotatable actuator and that the cooler is enclosed in a duct.
    Type: Grant
    Filed: June 2, 2008
    Date of Patent: June 3, 2014
    Assignee: FMC Kongsberg Subsea AS
    Inventors: Vidar Sten-Halvorsen, Erik Baggerud, Terje Hollingsaeter
  • Patent number: 8714262
    Abstract: According to an embodiment, a method of limiting the amount of oil in a sea comprises: positioning a device for directing the flow of a fluid adjacent to a wellhead, wherein the device comprises: a first fluid passageway; a second fluid passageway; a third fluid passageway, wherein the first fluid passageway is operatively connected to the second and third fluid passageways; and a fluid director, wherein the fluid director is operatively connected to the first, second, and third fluid passageways, and wherein depending on at least one of the properties of a fluid, the fluid director directs the fluid to increasingly flow into the second or third fluid passageways. This embodiment is useful in limiting the amount of oil when a blowout has occurred.
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: May 6, 2014
    Assignee: Halliburton Energy Services, Inc
    Inventors: Michael L. Fripp, Jason D. Dykstra
  • Patent number: 8622138
    Abstract: Methods and apparatus for diverting fluids either into or from a well are described. Some embodiments include a diverter conduit that is located in a bore of a tree. The invention relates especially but not exclusively to a diverter assembly connected to a wing branch of a tree. Some embodiments allow diversion of fluids out of a tree to a subsea processing apparatus followed by the return of at least some of these fluids to the tree for recovery. Alternative embodiments provide only one flowpath and do not include the return of any fluids to the tree. Some embodiments can be retro-fitted to existing trees, which can allow the performance of a new function without having to replacing the tree. Multiple diverter assembly embodiments are also described.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: January 7, 2014
    Assignee: Cameron Systems (Ireland) Limited
    Inventors: Ian Donald, John Reid
  • Patent number: 8607877
    Abstract: This invention relates to equipment and a subsea pumping system using a subsea module installed on the sea bed, preferably away from a production well and intended to pump hydrocarbons having a high associated gas fraction produced by one or more subsea production wells to the surface. One object of this invention is achieved by means of the design of a pumping module (PM) which is linked to pumping equipment already present in a production well and which basically comprises: an inlet pipe (2), separator equipment (3), a first pump (4) and a second pump (8). In the subsea pumping system for the production of hydrocarbons with a high gas fraction, the other object of this invention, when oil is pumped from the production well (P) the well pump (13) increases the energy of the fluid in the form of pressure and transmits this increase in energy in the form of an increase in suction pressure in the second pump (8) of the subsea module (PM).
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: December 17, 2013
    Assignee: Petroleo Brasileiro S.A.-Petrobras
    Inventor: Roberto Rodrigues
  • Patent number: 8607894
    Abstract: A system for offshore disposal of drill cuttings including a cleaning system for treating contaminated drill cuttings into drill cuttings and contaminants; a transport system for moving the drill cuttings; a slurrification system for making a slurry of the treated drill cuttings; and a cuttings re-injection system for injecting the slurry into a well.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: December 17, 2013
    Assignee: M-I LLC
    Inventors: Nick McDonald, Andrew John Murray, Gordon M. Logan, Dan Knapper
  • Patent number: 8597506
    Abstract: A large diameter subsea gravity separator for ultra deep water conditions of 2000 to more than 4000 m includes a vessel having a shell which defines a cylindrical tubular portion and closure portions at axially both ends of the tubular portion. The shell is a sandwich shell which is dimensioned to provide for a predetermined collapse resistance of at least MPa and includes an inner steel layer, an outer steel layer and a concrete layer completely filling the space between the inner steel layer and the outer steel layer.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: December 3, 2013
    Assignee: Statoil Petroleum AS
    Inventors: Håvar Ilstad, Hroar Andreas Nes
  • Publication number: 20130312980
    Abstract: A method and systems are provided for injecting a hydrate slurry into a reservoir. The method includes combining gas and water within a subsea simultaneous water and gas (SWAG) injection system. The method also includes forming a hydrate slurry from the gas and the water, and injecting the hydrate slurry into a reservoir.
    Type: Application
    Filed: May 1, 2013
    Publication date: November 28, 2013
    Inventors: Richard F. Stoisits, Larry D. Talley, Jason W. Lachance, Douglas J. Turner
  • Patent number: 8590297
    Abstract: Apparatus and method for processing a process fluid at a remote location, with the apparatus including a pump located at a first location and configured to provide a pressurized working fluid. The apparatus also includes an umbilical coupled to the pump such that the umbilical receives the pressurized working fluid from the pump and transports the pressurized working fluid therefrom. The apparatus further includes a hydraulic turbine disposed at the remote location and coupled to the umbilical such that the hydraulic turbine receives the pressurized working fluid from the umbilical. The apparatus additionally includes one or more shaft energy conversion devices operatively coupled to the hydraulic turbine and disposed at the remote location.
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: November 26, 2013
    Assignee: Dresser-Rand Company
    Inventors: H. Allan Kidd, William C. Maier
  • Patent number: 8574351
    Abstract: A two phase gas-liquid separation apparatus is provided that shapes the flow in a flow shaping line. Shaping the two-phase flow allows centrifugal force to send the heavier, denser liquid to the outside wall of the flow shaping line and allows the lighter, less dense vapor or gas to occupy the inner wall of the flow shaping line. With the gas positioned on the inner wall of the flow shaping line, an exit port on the inner wall will allow for the majority, if not all, of the gas, along with a low amount of liquid, to be sent to a conventional separator. A high ratio of vapor/liquid at a flow rate much lower than the total flow rate within the flow shaping line is sent to the conventional separator. This allows for efficient separation of the vapor from the liquid with the use of a smaller conventional separator.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: November 5, 2013
    Assignee: Haven Technology
    Inventors: David James Elms, Gregory Allen Hudspeth
  • Patent number: 8555978
    Abstract: Disclosed is a tubing system for transporting a gas-liquid flow from a well to a production platform or processing facility. It includes a dual pathway section between the well and the production point having a first tubing portion and a second tubing portion. The second tubing portion includes a plurality of parallel channels so as to divide the multi-phase flow into a plurality of flows through individual channels. This is done to reduce flow slippage of the lower viscosity portion of the flow, which may lead to inefficiencies in flow characteristics, and often, undesirable cyclical variations in pressure and fluid volume. This is especially useful in inclined portions of the petroleum flow pipe system and along hilly terrain. The first round tubing portion is used for transporting the gas-liquid flow as well as for maintenance purposes, such as for pigging, fishing or coiled tubing operations.
    Type: Grant
    Filed: November 29, 2010
    Date of Patent: October 15, 2013
    Assignee: Technology Commercialization Corp.
    Inventors: Boris Ganelin, Michael W. Kenworthy
  • Patent number: 8550568
    Abstract: The present invention relates to a collecting device (1) for solids material which is moved by means of a fluid from a first location on a seabed, on an offshore installation or on land to a second location, the fluid carrying the solids material in through an inlet portion (7) of the collecting device (1), the collecting device (1) being provided with one or more permeable portions arranged to retain the solids material exceeding a predetermined size. The invention also relates to a method of using the collecting device (1), the method including the abandoning of a filled collecting device (1).
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: October 8, 2013
    Assignee: OTT Subsea Bag Technology AS
    Inventor: Arne Incoronato
  • Patent number: 8511386
    Abstract: A subsea pumping system using a subsea module is installed on the sea bed, preferably away from production wells and intended to pump hydrocarbons having a high associated gas fraction produced by subsea production wells to the surface. The system achieves an advantage by the design of a pumping module (PM) which is linked to pumping equipment already present in a production well and which includes: an inlet pipe (2), separator equipment (3), a first pump (4) and a second pump (8). Another advantage of the subsea pumping system for the production of hydrocarbons with a high gas fraction is that, when oil is pumped from the production well (P), the well pump (13) increases the energy of the fluid in the form of pressure and transmits this increase in energy in the form of an increase in suction pressure in the second pump (8) of the subsea module (PM).
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: August 20, 2013
    Assignee: Petroleo Brasileiro S.A.—Petrobras
    Inventor: Roberto Rodrigues
  • Publication number: 20130206422
    Abstract: Method, riser assembly and gas handler for diverting gas from a riser, The riser assembly includes a riser having a first end and a second end and a conduit extending from the first end to the second end; a gas handler connected to the riser and provided between the first end and the second end, the gas handler having an external casing; plural pipes attached to an outside of the riser such that at least one pipe of the plural pipes enters through the external casing; and a gas vent pipe configured to start at the gas handler and extend towards the second end of the riser and the gas vent pipe is further configured to divert a gas from the gas handler through the outside of the riser.
    Type: Application
    Filed: March 15, 2013
    Publication date: August 15, 2013
    Applicant: Hydril USA Manufacturing LLC
    Inventor: Hydril USA Manufacturing LLC
  • Publication number: 20130206421
    Abstract: The present invention relates to equipment for the conveying and recovery of hydrocarbons from an underwater well for the extraction of hydrocarbons under uncontrolled release conditions, comprising a chamber (23) for the separation of the hydrocarbon stream leaving the well, into a heavy phase (23a) and a light phase (23b), means (15,16,17,24,25,26) being envisaged, in connection with the separation chamber (23), for conveying the heavy phase (23a) and light phase (23b) towards the surface, characterized in that it comprises a directioning body (18) of the hydrocarbon stream, having a substantially cylindrical shape, or as a truncated paraboloid with both ends open, wherein a first end is an inlet of the hydrocarbon stream leaving the well, and a second end, distal with respect to the inlet of the hydrocarbon stream (20), is in fluid connection with the separation chamber (23) with the interpositioning of a perforated spherical cap (22).
    Type: Application
    Filed: June 10, 2011
    Publication date: August 15, 2013
    Applicant: ENI S.P.A.
    Inventors: Giambattista De Ghetto, Paolo Andreussi
  • Patent number: 8496815
    Abstract: Systems and methods for the recovery of iodine are described. In particular, recovery systems and methods produce an iodine complex from an aqueous brine containing iodide. A head tank for maintains a supply of the brine, a pH controller acidifies brine received from the head tank and an oxidizer converts iodide in the acidified brine to elemental iodine. At least one activated carbon contactor module is removably inserted into a stream of the oxidized brine provided by the oxidizer and binds the molecular iodine to form the iodine complex. A container may enclose the head tank, the pH controller and the oxidizer in order to facilitate transportation of the system and performance of the methods and processes in proximity to a brine source. The brine may be employed or associated with oilfield operations.
    Type: Grant
    Filed: September 21, 2009
    Date of Patent: July 30, 2013
    Assignee: Iofina Natural Gas, Inc.
    Inventors: Terry Brix, James Reynolds
  • Patent number: 8496063
    Abstract: A method and device for recovering drilling fluid used in connection with the provision of a subsea well, in which the drilling fluid is circulated from a vessel on a sea surface via a drill string and out through a drill bit into an annulus which is defined by a borehole and the drill string. The device includes a filtering device which is connected, in respect of fluid, to an annulus and which is arranged to contain drill cuttings and drilling fluid. A fluid line extends from a portion of the filtering device to the vessel, the fluid line being arranged to carry drilling fluid which has been separated from the drill cuttings back to the vessel.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: July 30, 2013
    Assignee: Ott Subsea Bag Technology AS
    Inventor: John Eirik Paulsen
  • Patent number: 8453747
    Abstract: A method for control of liquid or liquid slugs in multi phase fluid pipelines, including a multiphase pipeline for the transportation of a fluid, consisting of mainly gas and some liquid such as water an/or gas condensate. The gas is evacuated via a gas separation unit connected to the multiphase pipeline to a second gas transport pipe, and the liquid is fed to a dedicated pipeline section acting as a buffer volume pipeline. The separation unit includes one or several vertical pipes connected at a distance from one another along the multiphase pipeline, whereby the gas is transported separately to a downstream processing facility on a platform or onshore or the like, and whereby the liquid proceeds to the loop which may preferably be an extension of the multiphase pipeline, or the liquid and gas may be re-combined and led in a common transport pipeline to the desired destination.
    Type: Grant
    Filed: April 28, 2008
    Date of Patent: June 4, 2013
    Assignee: Statoilhydro ASA
    Inventor: Henning Holm
  • Patent number: 8424608
    Abstract: A system for remediating hydrates has a heat storage box with an interior volume, a heater for heating fluid flowing into the hot fluid inlet of the heat storage box, a heat exchanger positioned in the interior volume of the heat storage box so as to be in heat exchange relationship with heated water from the interior volume of the heat storage box, and a line connected to a heated water outlet of the heat exchanger so as to be manipulated toward a location of the hydrates for the purpose of delivering the heated water toward the hydrates. The heat exchanger is piping extends in a serpentine pattern within an upper portion of the heat storage box. The line can be connected to a hot stab suitable for a manipulation by an ROV.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: April 23, 2013
    Assignee: Trendsetter Engineering, Inc.
    Inventors: Mario R. Lugo, Randolph G. Smith, Scott A. Sorensen
  • Patent number: 8413725
    Abstract: The present application is directed to a subsea separator. The subsea separator suitably comprises (a) a housing having an inlet for receiving a fluid mixture, a non-gaseous fluid outlet located along the housing at a point lower than the inlet, and a gas outlet located along the housing at a point higher than the inlet; (b) a deflector means located within the housing for acting on fluid entering the housing; and (c) a sealing means in communication with the gas outlet for preventing non-gaseous fluid from exiting the housing through the gas outlet, the sealing means being operationally configured to open and seal the gas outlet based on the volume of non-gaseous fluid within the separator; wherein the separator is operationally configured to operate under a differential pressure including a greater external hydrostatic pressure than internal pressure and vice versa.
    Type: Grant
    Filed: December 24, 2010
    Date of Patent: April 9, 2013
    Inventors: David C Wright, Jeffery Wilbert Dufrene
  • Patent number: 8397821
    Abstract: A seafloor pump assembly is installed within a caisson that has an upper end for receiving a flow of fluid containing gas and liquid. The pump assembly is enclosed within a shroud that has an upper end that seals around the pump assembly and a lower end that is below the motor and is open. A separating device is connected to an upper end portion of the discharge pipe within the caisson. The separating device causes separation of gas from the flow containing gas and liquid to be enhanced prior to the flow reaching the operating liquid level in the caisson.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: March 19, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: Donn J. Brown, Earl B. Brookbank, John L. Bearden
  • Patent number: 8393398
    Abstract: A device for inhibiting severe slug flow in a multiphase fluid stream flowing through a pipeline and into a riser, wherein, the device is positioned immediately upstream of the riser and comprises at least one unit comprising (i) an upwardly inclined section of pipe having a lower end and an upper end and (ii) either a substantially horizontal section of pipe having a first end and a second end or a downwardly inclined section of pipe having an upper end and a lower end, wherein the lower end of the upwardly inclined section of pipe is connected either directly or indirectly with the pipeline, the upper end of the upwardly inclined section of pipe is connected either directly or indirectly with the first end of the horizontal section of pipe or with the upper end of the downwardly inclined section of pipe, and the second end of the horizontal section of pipe or the lower end of the downwardly inclined section of pipe is connected either directly or indirectly with the riser, and wherein the angle of inclinati
    Type: Grant
    Filed: September 12, 2006
    Date of Patent: March 12, 2013
    Assignee: BP Exploration Operating Company Limited
    Inventors: Taras Yurievich Makogon, Graham John Brook
  • Patent number: 8374834
    Abstract: A statistical methodology is disclosed to provide time-to-event estimates for oilfield equipment. A method according to the present invention extracts unbiased information from equipment performance data and considers parameters interactions without recourse to data thinning. The analysis explicitly accounts for items of equipment that are still operational at the time of analysis. A method according to the present invention may also be utilized to apply survival analysis to any oilfield equipment components where time-to-event information has been recorded. The method of the present invention allows comparative reckoning between different components present in the system comprising several or many individual components and allows analysis of these components either individually or simultaneously, i.e., in the presence of other components.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: February 12, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: William J. Bailey, Benoit Couet, James R. Hogan, Iain S. Weir
  • Publication number: 20130025874
    Abstract: Techniques for separating downhole fluid from a wellbore penetrating a subterranean formation are provided. These techniques may involve a cyclone separator having a housing with an intake for receiving the downhole fluid and at least one outlet, a cyclone section for rotating the downhole fluid, and an isolation plate positioned below the cyclone section. The isolation plate has a plurality of slots along a perimeter thereof positionable adjacent an inner surface of the housing for selectively passing portions of the downhole fluid out of the cyclone section. The cyclone separator further having a catching section for receiving the portions of the downhole fluid passing through the isolation plate for gravitational separation into a plurality of phases therein. The catching section has a plurality of baffles for stopping rotation of the portions of the downhole fluid.
    Type: Application
    Filed: July 30, 2011
    Publication date: January 31, 2013
    Inventors: Robert Saunders, John Nighswander, Bernard THERON, Andrew Gilbert
  • Publication number: 20130008663
    Abstract: A system is provided for the production of heavy crude oil from an undersea reservoir, and for the treatment of the crude oil to facilitate its transport. A floating body (12) which produces the heavy crude oil, carries a hydrocarbon cracking station (32) that cracks the heavy crude into light liquid and gaseous hydrocarbons, and that uses heat resulting from the cracking to produce pressured steam. The pressured steam is used to drive a steam-powered engine (72) (with pistons or a turbine) that drives an electrical generator (74) whose electricity powers the system.
    Type: Application
    Filed: January 20, 2012
    Publication date: January 10, 2013
    Inventors: Donald Maclean, Johannes Christiaan Lanfermeijer
  • Patent number: 8327941
    Abstract: A downhole device having an oil/water separator having a well fluid inlet, an oil stream outlet conduit, and a water stream outlet conduit; a removable flow-restrictor located in at least one of the water stream outlet conduit or the oil stream outlet conduit.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: December 11, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Matthew R. Hackworth, Nihat Ovutmen, Kevin J. Forbes, Lance I. Fielder, Allan Ross
  • Publication number: 20120305260
    Abstract: Oceanic petroleum oil wells, though evolving over decades in technology, catastrophic events with mortality and morbidity, and damage to the aquatic and terrestrial ecosystem are still threats to any ventures in this intriguing avenue. The present embodiments of inventions are directed to emergency measures to weather through adversities of some commonly encountered situations. They further include temporary and permanent reparative measures aiming at salvaging the oil well, whose work and economic involvements are far from normal dimensions. The novelty, simplicity, and workability in situations when none such consolations exist, the instant inventions are worthy of a try by all measures. The author inventor, also has to invent a suitable aphorism, to write along with: ‘When there is a thunder storm, rain or hail, a mansion may await . . . yet a shelter had to be found, even if a doll house.
    Type: Application
    Filed: June 6, 2011
    Publication date: December 6, 2012
    Inventor: Sumathi Paturu
  • Patent number: 8322464
    Abstract: A system for continuously feeding drill cuttings extracted from a cutting source into a liquid. The system has an open bottomed vacuum hood, means for positioning the open bottom of the vacuum hood in a liquid, means for creating a vacuum in the vacuum hood, a conduit for transporting the drill cuttings from the cutting source to the open bottomed vacuum hood, from which vacuum hood the drill cuttings fall, under the influence of gravity, through the open bottom of the vacuum hood and are thereby deposited into said liquid. Embodiments include means for removing and recovering residual drilling fluids extracted with the drill cuttings, reducing the size of the drill cuttings so they may be injected into a porous earth formation, relieving choke points and blockages.
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: December 4, 2012
    Inventor: Jeffrey A. Reddoch, Sr.
  • Patent number: 8322434
    Abstract: A Vertical Annular Separation and Pumping System (VASPS) utilizing a outer annulus liquid discharge arrangement to replace a standard pump shroud associated with an electrical submersible pump. The outer annulus liquid discharge arrangement directs produced wellbore liquids around the electrical submersible pump motor to provide a cooling medium to prevent overheating and premature failure of the electrical submersible pump.
    Type: Grant
    Filed: May 2, 2006
    Date of Patent: December 4, 2012
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Brian J. Fielding, Tracy A. Fowler
  • Patent number: 8322430
    Abstract: There is disclosed a system adapted to transport two fluids and a gas comprising a nozzle comprising a first nozzle portion comprising the first fluid and the gas, and a second nozzle portion comprising the second fluid, wherein the second nozzle portion has a larger diameter than and is about the first nozzle portion; and a tubular fluidly connected to and downstream of the nozzle, the tubular comprising the first fluid and the gas in a core, and the second fluid about the core.
    Type: Grant
    Filed: May 30, 2006
    Date of Patent: December 4, 2012
    Assignee: Shell Oil Company
    Inventors: Jose Oscar Esparza, George John Zabaras