Patents Examined by George A. Suchfield
  • Patent number: 8616273
    Abstract: A method of producing hydrocarbons from a subterranean reservoir comprises pre-heating by exposure to electromagnetic radiation from a electromagnetic radiation source, injecting through at least one injection well a solvent into the reservoir to dilute the hydrocarbons contained in the pre-conditioned portion, and producing through at least one production well a mixture of hydrocarbons and solvent. An apparatus for producing hydrocarbons from a subterranean reservoir comprises at least one radio frequency antenna configured to transmit radio frequency energy into a subterranean reservoir, a power source to provide power to the at least one radio frequency antenna, at least one injection well configured to inject a solvent from a solvent supply source into the subterranean reservoir to lower the viscosity of the hydrocarbons, and at least one production well configured to produce a mixture comprising hydrocarbons and solvent from the subterranean reservoir.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: December 31, 2013
    Assignees: Harris Corporation, Laricina Energy Ltd.
    Inventors: Mark Trautman, Derik Ehresman, Neil Edmunds, George Taylor, Mauro Cimolai
  • Patent number: 8613318
    Abstract: The invention relates to an enhancing oil recovery method by injecting into a subterranean oil formation an aqueous flooding fluid comprising at least one injecting galactomannan polymer substituted by at least one sulfonation agent. The invention also relates to an flooding fluid having better injectivity properties than existing flooding fluids.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: December 24, 2013
    Assignee: IFP Energies Nouvelles
    Inventors: Marie-Pierre Labeau, Guillaume Degre, Rajesh Ranjan, Isabelle Henaut, René Tabary, Jean-François Argillier
  • Patent number: 8613314
    Abstract: The invention discloses a method of treating a subterranean formation of a well bore, including the steps of providing a first treatment fluid substantially free of macroscopic particulates; pumping the first treatment fluid into the well bore at different pressure rates to determine the maximum matrix rate and the minimum frac rate; subsequently, pumping the first treatment fluid above the minimum frac rate to initiate at least one fracture in the subterranean formation; providing a second treatment fluid comprising a second carrier fluid, a particulate blend including a first amount of particulates having a first average particle size between about 100 and 2000 ?m and a second amount of particulates having a second average particle size between about three and twenty times smaller than the first average particle size, such that a packed volume fraction of the particulate blend exceeds 0.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: December 24, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Marieliz Garcia-Lopez De Victoria, Carlos Abad
  • Patent number: 8607862
    Abstract: A method is for conveying bitumen or heavy oil in a deposit is provided. The bitumen or very heavy oil is liquefied by way of an inductive conductor loop as a heater and is led away using an extraction pipe, wherein the conductor loop and the extraction pipe are disposed relative to one another such that the heating and thus extraction of bitumen or very heavy oil is maximized. To this end, one of the conductors of the conductor loop is disposed substantially vertically above the extraction pipe.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: December 17, 2013
    Assignee: Siemens Aktiengesellschaft
    Inventors: Dirk Diehl, Norbert Huber
  • Patent number: 8602098
    Abstract: The present invention relates generally to in situ hydrate control during hydrocarbon production when applying a recovery method utilizing cyclic injection of light hydrocarbon solvents. Hydrate formation is limited by creating an energy reserve within a hydrocarbon reservoir adjacent to the wellbore. A heated solvent is injected during an injection phase of a cyclic solvent dominated recovery process to form a heated region adjacent to the wellbore at the end of an injection cycle. The energy reserve is used to act against the evaporative cooling effect caused by subsequent production and associated depressurization to maintain reservoir conditions outside of hydrate formation conditions. In situ conditions are estimated and injected energy amounts are controlled.
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: December 10, 2013
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Mori Y. Kwan, Rahman Khaledi, Robert D. Kaminsky, Mark S. Beckman, Robert Chick Wattenbarger, J. Pierre Lebel
  • Patent number: 8602099
    Abstract: The present invention relates to a process for the production of mineral oil from mineral oil deposits with large temperature gradients, in which, for increasing the mineral oil yield, highly permeable regions of the mineral oil formation are blocked by injecting formulations which, after being forced into the deposit, form highly viscous gels under the influence of the deposit temperature. A plurality of portions of the formulation which in each case can form gels at different temperatures and therefore result in very complete blocking of highly permeable regions of the formation are used.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: December 10, 2013
    Assignees: Wintershall Holding GmbH, Institute of Petroleum Chemistry of the Siberian Branch of the Russian Academy
    Inventors: Vladimir Stehle, Konrad Siemer, Volker Riha, Dmitry Kuznetsov, Liubov Altunina, Vladimir A. Kuvshinov
  • Patent number: 8596356
    Abstract: Synthesis gas is more effectively produced from the underground gasification of coal from a coal seam when the casing lining is cemented with a cementitious slurry containing a cementitious material, graphite and an aluminum silicate, such as metakaolin. The cementitious slurry of the cement mix sets as a cement sheath at bottomhole static temperatures less than or equal to 65° C. The set cement may withstand extreme dry heat temperatures which are greater than or equal to 800° C.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: December 3, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: Andreas Brandl, Dale R. Doherty
  • Patent number: 8590619
    Abstract: The invention relates to a method for extracting methane from methane hydrates, comprising the following steps: feeding carbon dioxide to the methane hydrate deposits; allowing the carbon dioxide to take effect on the methane hydrate to release methane and store the carbon dioxide as carbon dioxide hydrate; and removing the released methane, characterized in that the fed carbon dioxide is supercritical carbon dioxide.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: November 26, 2013
    Assignee: Leibniz-Institut Fuer Meereswissenschaften
    Inventors: Klaus Wallmann, Matthias Haeckel
  • Patent number: 8584751
    Abstract: A process for mineral oil production especially Winsor type III microemulsion flooding, in which an aqueous surfactant formulation which comprises at least one nonionic surfactant having 11 to 40 ethoxy units and a hydrophobic radical having 8 to 32 carbon atoms and at least one further surfactant differing therefrom is forced through injection wells into a mineral oil deposit and crude oil is removed from the deposit through production wells.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: November 19, 2013
    Assignee: BASF SE
    Inventors: Christian Bittner, Günter Oetter, Jack Tinsley, Christian Spindler, Gabriela Alvarez Jürgenson, Sophie Vogel
  • Patent number: 8584755
    Abstract: The invention provides economically effective methods for hydraulic fracturing a subterranean formation that ensure improvement of the hydraulic fracture conductivity because of forming strong proppant clusters uniformly placed in the fracture throughout its length. One of these methods comprises: a first stage comprising injection of fracturing fluid into a borehole, the fluid containing thickeners to create a fracture in the formation; and a second stage comprising introduction of proppant into the injected fracturing fluid to prevent closure of the created fracture, and further, comprising introducing an agent into the fracturing fluid to provide formation of proppant clusters in the created fracture and channels for flowing formation fluids.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: November 19, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Dean M. Willberg, Matthew J. Miller, Marc Jean Thiercelin, Ivan Vitalievich Kosarev
  • Patent number: 8584750
    Abstract: A process for mineral oil production, especially Winsor type III microemulsion flooding, in which an aqueous surfactant formulation which comprises at least one nonionic surfactant having 8 to 30 ethoxy units, which has a polydispersity of from 1.01 to 1.12, and at least one further surfactant is forced through injection wells into a mineral oil deposit and crude oil is removed from the deposit through production wells.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: November 19, 2013
    Assignee: BASF SE
    Inventors: Christian Bittner, Oetter Günter, Jack Tinsley, Christian Spindler, Gabriela Alvarez Jürgenson, Sophie Vogel
  • Patent number: 8579029
    Abstract: A method includes providing a treatment fluid that is a viscous fluid. The viscous fluid may be greater than 0.01 Pa-s, greater than 0.1 Pa-s, and/or a cross-linked polymer based fluid. The method further includes determining a fines migration composition soluble in an aqueous phase of the treatment fluid that is compatible with the treatment fluid, and that interacts to secure fines in an earth formation intersecting a wellbore within a fines reaction time. The method further includes adding an amount of the fines migration composition to the treatment fluid, and treating the earth formation with the treatment fluid. The method includes leaking off a portion of the treatment fluid into the earth formation, and providing a residence time of the leaked off portion of the treatment fluid in the earth formation, where the residence time meets or exceeds the fines reaction time.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: November 12, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Carlos Abad, Yenny Christanti, Syed Ali, Balkrishna Gadiyar, Brent Busby
  • Patent number: 8573299
    Abstract: A method for enhancing oil recovery is disclosed. The method includes providing a subsurface reservoir containing hydrocarbons therewithin and a wellbore in fluid communication with the subsurface reservoir. A solution for injection into the reservoir is formed by mixing a composition with at least one non-ionic chemical, at least one polymer, and at least one alkali. The non-ionic chemical can be alcohol alkoxylates such as alkylaryl alkoxy alcohols or alkyl alkoxy alcohols. The solution is solution is clear and aqueous stable when mixed. The solution is injected through the wellbore into the subsurface reservoir.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: November 5, 2013
    Assignee: Chevron U.S.A. Inc.
    Inventors: Varadarajan Dwarakanath, Taimur Malik, Adam Christopher Jackson, Ping Zhao, Oya A. Karazincir, Sophany Thach
  • Patent number: 8555971
    Abstract: A method for treating a karsted formation containing heavy hydrocarbons and dolomite includes providing heat to at least part of one or more karsted layers in the formation from one or more heaters located in the karsted layers. A temperature in at least one of the karsted layers is allowed to reach a decomposition temperature of dolomite in the formation. The dolomite is allowed to decompose and at least some hydrocarbons are produced from at least one of the karsted layers of the formation.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: October 15, 2013
    Assignee: Shell Oil Company
    Inventors: Harold J. Vinegar, John Michael Karanikas
  • Patent number: 8555967
    Abstract: Disclosed are spacer fluids and methods of use in subterranean formations. Embodiments may include use of consolidating spacer fluids in displacement of drilling fluids from a well bore annulus. Embodiments may include determining the boundary between a cement composition and a consolidating spacer fluid based on presence of tagging material in the well bore.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: October 15, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, Ronnie G. Morgan, Craig W. Roddy, James R. Benkley, D. Chad Brenneis
  • Patent number: 8556001
    Abstract: The present invention relates to a process and related apparatus for determining the presence and/or quantity of H2S in the drilling debris of a subsoil layer comprising the following working steps: recovering the drilling debris of a layer; degassing the drilling debris from the previous recovery step, and separating a gaseous phase from said debris; clearing the gas released in the step of degassing, and conveying towards an H2S detector; determining the possible presence and/or quantity of H2S in the gaseous phase from the steps of degassing and clearing by means of a suitable means of detection; possible repetition of the previous phases at two layers, at least of the subsoil at different levels of depth in relation to the surface, with consequent determination of a distribution profile of H2S in the subsoil.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: October 15, 2013
    Assignee: Geolog S.r.l.
    Inventor: Antonio Calleri
  • Patent number: 8550161
    Abstract: A well treatment composition is formed from a fluid mixture of a viscoelastic surfactant and a liquid carrier fluid. The fluid mixture has rheological properties wherein the mixture exhibits shear-thickening behavior when the shear rate is increased from a first shear rate to a second higher shear rate. The fluid mixture may further include a shear activation additive that interacts with the viscoelastic surfactant to facilitate the shear-thickening behavior. The method is accomplished by introducing the fluid mixture into a wellbore formed in a subterranean formation. In certain applications, the fluid mixture may be recycled by bringing the fluid mixture to the surface and reintroducing the fluid into the same or a different wellbore.
    Type: Grant
    Filed: August 14, 2012
    Date of Patent: October 8, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Yiyan Chen, Oscar Bustos, Philip F. Sullivan
  • Patent number: 8550165
    Abstract: The present disclosure is directed to a method of servicing a well. The method comprises providing a well servicing fluid. The well servicing fluid is formulated with the following components comprising, at least one friction reducer chosen from polychloroprenes, vinyl acetate polymers, polyalkylene oxides polyalphaolefins; and a nonaqueous carrier fluid. The well servicing fluid is introduced into the well.
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: October 8, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: D. V. Satyanarayana Gupta, Harpreet Singh Dinsa, Ronald Casey Plasier
  • Patent number: 8551923
    Abstract: Disclosed are foamed spacer fluids comprising kiln dust for use in subterranean formations. An embodiment discloses a foamed spacer fluid comprising a partially calcined kiln feed removed from a gas stream comprising SiO2, Al2O3, Fe2O3, CaO, MgO, SO3, Na2O, and K2O; a foaming agent; a gas; and water.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: October 8, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: James Robert Benkley, Joseph V. Spencer, Zachary Robert Kranz, Christopher Jay Garrison, D. Chad Brenneis, Craig W. Roddy
  • Patent number: 8544565
    Abstract: Compositions including relatively low reactivity acids and having a pH of from about 2 to about 5, mixed with viscoelastic surfactants (VESs) and internal breakers may serve as fluids, in a non-limiting embodiment as drilling fluids, to open underground hydrocarbon reservoirs with carbonate contents of 10 wt % or above. The fluids initially have low viscosities. After the fluid flows out of the drill bit, the acids react with carbonates in the formation thereby increasing the pH of the fluids causing the VES to gel the fluid at the bottom of the hole and within the formation rock. Even when the subterranean formation contains naturally-occurring fractures, the viscosified fluid will reduce fluid loss into the formation. After drilling through the targeted formation, internal breakers in the viscosified fluids will break down the fluids to permit their removal, and production of the well with very little or no near well bore damage.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: October 1, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: Tianping Huang, James B. Crews, David E. Clark