Patents Examined by George A. Suchfield
  • Patent number: 8701766
    Abstract: The external surface of a tubular body such as well casing is coated with a substance that, upon exposure to cement, is unstable and degrades. After installation in a subterranean well and subsequent cementation, the coating degrades and forms a gap between the external surface of the tubular body and the cement sheath. Forming the gap is useful for obtaining optimal stimulation during the hydraulic fracturing of unconventional shale-gas formations.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: April 22, 2014
    Assignee: Schlumberger Technology Corporation
    Inventor: Simon James
  • Patent number: 8695707
    Abstract: This invention relates to compositions and methods of removing an organic deposit including introducing a fluid, wherein the fluid comprises at least two non-polar organic solvents and at least two polar organic solvents; allowing the fluid to dissolve at least a portion of the organic deposit; and removing at least a portion of the fluid. This invention relates to compositions and methods of removing an organic deposit including introducing a fluid, wherein the fluid comprises at least two non-polar organic solvents and at least two polar organic solvents, wherein the non-polar organic solvents comprise aromatic naphtha, terpenes, kerosene, and combination thereof, and wherein the polar solvents comprise heavy aromatic naphtha, cyclohexanone, N-2-methyl pyrrolidone, N-ethyl-2-pyrrolidone, and combination thereof, allowing the fluid to dissolve at least a portion of the organic deposit, and removing at least a portion of the fluid.
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: April 15, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Jack Li, Syed A. Ali, Oscar Bustos, Matthew J. Miller
  • Patent number: 8695703
    Abstract: This invention relates generally to methods for monitoring directional flood front movement during oil recovery and more specifically to methods for monitoring flood front movement of flooding agent injected into subsurface formations. The method comprises detecting physical properties of subsurface formation and injection of a flooding agent into said formation through at least one injection well thus forcing reservoir oil movement toward at least one production well. The flooding agent is a highly dispersed gas-liquid mixture having size of gas bubbles not exceeding an average diameter of the pores of said oil-bearing reservoir. The method further comprises detecting the same physical properties of the formation at the same area after flooding and monitoring the flood front profile by registrating changes in the physical properties of the formation caused by the arrival of said flood front.
    Type: Grant
    Filed: April 28, 2008
    Date of Patent: April 15, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Oleg Yurievich Dinariev, Vladimir Vasilievich Tertychnyi, Dimitri Vladilenovich Pissarenko
  • Patent number: 8689870
    Abstract: Methylhydroxyethyl cellulose may be used as an additive in cement slurries in the treatment of wells to prevent or reduce the occurrence of gas channeling. In addition to acting as a gas control additive, methylhydroxyethyl cellulose controls fluid loss, minimizes free fluid and stabilizes foam during cementing of the well.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: April 8, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Windal Scott Bray, Andreas Brandl
  • Patent number: 8689865
    Abstract: A process for utilizing microwaves to heat H2O within a subterranean region wherein the heated H2O contacts heavy oil in the subterranean region to lower the viscosity of the heavy oil and improve production of the heavy oil.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: April 8, 2014
    Assignee: ConocoPhillips Company
    Inventors: Dwijen K. Banerjee, John L. Stalder, Daniel R. Sultenfuss, Wendell P. Menard, Wayne R. Dreher, Jr., Curtis G. Blount
  • Patent number: 8684079
    Abstract: Described is a way to reduce solvent usage in solvent-dominated oil recovery processes through the use of an emulsion. Injection of an emulsion into an oil reservoir is performed as an alternative or supplement to solvent injection to minimize solvent usage per unit amount of oil recovered. The emulsion may contain solvent and the solvent may form an external-phase of the emulsion. A solvent-external emulsion may be injected and formed using an aqueous liquid or a gas as the internal phase. The emulsion may be an aqueous-external, vapor-internal emulsion with solvent being injected separately or simultaneously. Polymer may be added to viscosify the emulsions and use them for flow diversion in a solvent-dominated process.
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: April 1, 2014
    Assignee: ExxonMobile Upstream Research Company
    Inventors: Robert Chick Wattenbarger, Robert D. Kaminsky, Bhargaw L. Adibhatla
  • Patent number: 8684082
    Abstract: The present invention includes methods relating to the setting of fluids or slurries in a wellbore. In one embodiment, a method of isolating a portion a wellbore by preparing a sealant composition comprising a fluid component and a polymeric additive component, placing the sealant composition into a wellbore and subjecting the sealant composition to ionizing radiation. The ionizing radiation can cause bonding between polymeric additive components and create a polymer matrix within the sealant composition that increases the mechanical strength of the sealant composition.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: April 1, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Samuel J. Lewis, Gary Funkhouser, Paul Hoertz, David F. Myers, James Lynn Davis, Vikram Rao, Vijay Gupta, Lynn Margaret Soby
  • Patent number: 8684081
    Abstract: A silicate gel composition that is useful for sealing the face of a fracture of a formation. A method of sealing a face of a fracture of a formation with the silicate gel composition and diverting an acid treatment fluid.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: April 1, 2014
    Assignee: Saudi Arabian Oil Company
    Inventors: Saleh Haif Al-Mutairi, Ali Dahmal Al-Aamri, Khalid A. Al-Dossary, Mubarak Auodah Al-Dhufairi
  • Patent number: 8678080
    Abstract: A system comprising a well drilled into an underground formation comprising hydrocarbons; a water supply; a steam production facility, the steam production facility comprising a filter to remove at least 80% of a quantity of divalent cations in the water supply; an exchange resin to remove at least 80% of a quantity of divalent cations in a filtered water stream that has already passed through the filter; a steam injection facility connected to the well and the steam production facility, adapted to inject the steam into the well.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: March 25, 2014
    Assignee: Shell Oil Company
    Inventors: Michael Alvin Curole, Eugene Bruce Greene
  • Patent number: 8672028
    Abstract: Methods and compositions are disclosed that comprise interground perlite and hydraulic cement. An embodiment provides a method of cementing comprising: providing a settable composition comprising perlite, hydraulic cement, and water, wherein the perlite and hydraulic cement are interground prior to combination with the water to form the settable composition; and allowing the settable composition to set.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: March 18, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jeffery D. Karcher, D. Chad Brenneis, Craig W. Roddy, James R. Benkley
  • Patent number: 8662173
    Abstract: The present invention relates to methods and compositions that can be used to delay crystallization of a treatment solution so that thief zones or fractures are plugged in subterranean formations at a substantial distance from a wellbore. A supersaturated sodium aluminate solution, or other solutions, are introduced into the reservoir. The solution is relatively stable in the supersaturated state. Crystallization, or de-stabilizing the solution, can be controlled, which in turn plugs the thief zone or fracture at a designed point of time. By controlling the time that crystallization starts, i.e., the induction period, thief zones that are located at a substantial distant from the wellbore can be plugged.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: March 4, 2014
    Assignee: Saudi Arabian Oil Company
    Inventors: Xianmin Joe Zhou, Yun Chang
  • Patent number: 8662174
    Abstract: The present invention includes methods and compositions relating to the setting of fluids or slurries in a wellbore. In one embodiment, a method of isolating a portion a wellbore includes preparing a sealant composition having a fluid component, a polymeric additive constituent, and a set modifier component. The sealant composition is placed into a wellbore and subjected to ionizing radiation. The ionizing radiation can cause bonding between polymeric additive constituents and create a polymer matrix within the sealant composition that increases the mechanical strength of the sealant composition. The ionizing radiation also alters the set modifier component, triggering the thickening of the sealant composition.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: March 4, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Samuel J. Lewis, Gary Funkhouser, Anthony Badalamenti, Vikram Rao, David F. Myers, Vijay Gupta, James Lynn Davis, Michael Lamvik, Paul G. Hoertz, Lynn Margaret Soby, Andrew K. Dummer
  • Patent number: 8657002
    Abstract: A method for minimizing the amount of metal crosslinked viscosifier necessary for treating a wellbore with proppant or gravel is given. The method includes using fibers to aid in transporting, suspending and placing proppant or gravel in viscous carrier fluids otherwise having insufficient viscosity to prevent particulate settling. Fibers are given that have properties optimized for proppant transport but degrade after the treatment into degradation products that do not precipitate in the presence of ions in the water such as calcium and magnesium. Crosslinked polymer carrier fluids are identified that are not damaged by contaminants present in the fibers or by degradation products released by premature degradation of the fibers.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: February 25, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Dean M. Willberg, Christopher N. Fredd, Marina Bulova
  • Patent number: 8651186
    Abstract: The present invention relates to methods useful for isolating a portion of a wellbore. In one embodiment, a method includes preparing a sealant composition containing a set modifier component. The sealant composition is placed into the wellbore and is subjected to ionizing radiation that alters the set modifier component, triggering the thickening of the sealant composition.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: February 18, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Samuel J. Lewis, James L. Davis, Vijay Gupta, Michele Ostraat, David F. Myers, Michael Lamvik, Andrew K. Dummer, Vikram Rao, Lawrence R. Roberts, Anthony Badalamenti, Paul Hoertz
  • Patent number: 8651185
    Abstract: The uncontrolled flow of fluid from an oil or gas well may be reduced or stopped by injecting a composition including 2-cyanoacrylate ester monomer into the fluid stream. Injection of the monomer results in a rapid, perhaps instantaneous, polymerization of the monomer within the flow stream of the fluid. This polymerization results in formation of a solid plug that reduces or stops the flow of additional fluid from the well.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: February 18, 2014
    Assignee: Los Alamos National Security, LLC
    Inventor: Robert E. Hermes
  • Patent number: 8640772
    Abstract: Systems and methods for maximizing energy recovery from a subterranean formation are herein disclosed. According to one embodiment, a selected subterranean open-hole interval is isolated and at least one fracture is stimulated in the isolated subterranean open-hole interval.
    Type: Grant
    Filed: September 4, 2012
    Date of Patent: February 4, 2014
    Assignee: AltaRock Energy, Inc.
    Inventors: Daniel L. Bour, Susan Petty
  • Patent number: 8636071
    Abstract: A method includes performing a chemical process to create a chemical product and an amount of heat, and transferring the heat to a first fluid. The method further includes hydrating a polymer in the first fluid, and adding the chemical product from the chemical process to the first fluid to create a treatment fluid. The method further includes diluting the treatment fluid with respect to at least one constituent of the treatment fluid. The method includes treating a formation of interest in a wellbore with the treatment fluid. The method includes changing a formulation of the treatment fluid during the treating. The method also includes extending the treating beyond a design amount, or ending the treatment before the design amount and preserving some reagents of the chemical process.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: January 28, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Carlos Abad, Hemant K. J. Ladva, Lijun Lin, Yiyan Chen
  • Patent number: 8631866
    Abstract: A method of treating a subsurface formation includes circulating at least one molten salt through at least one conduit of a conduit-in-conduit heater located in the formation to heat hydrocarbons in the formation to at least a mobilization temperature of the hydrocarbons. At least some of the hydrocarbons are produced from the formation. An electrical resistance of at least one of the conduits of the conduit-in-conduit heater is assessed to assess a presence of a leak in at least one of the conduits.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: January 21, 2014
    Assignee: Shell Oil Company
    Inventor: Scott Vinh Nguyen
  • Patent number: 8627886
    Abstract: Systems and methods are provided for low emission (in-situ) heavy oil production, using a compound heat medium, comprising products of combustion of a fuel mixture with an oxidant and a moderator, mixed with steam generated from direct contact of hot combustion products with water, under pressure. The compound heat medium, comprising mainly CO2 and steam, is injected at pressure into a hydrocarbon reservoir, where steam condenses out of the compound heat medium releasing heat to the reservoir. The condensate is produced with the hydrocarbon as a hydrocarbon/water mixture or emulsion. Non-condensable gases, primarily CO2, from the compound heat medium may remains in the reservoir through void replacement, leakage to adjacent geological strata. Beneficially, any CO2 produced is recovered at pressure, for use in other processes, or for disposal by sequestration. Produced water is recovered and recycled as a moderator and steam generating medium.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: January 14, 2014
    Assignees: Orion Projects Inc.
    Inventors: Daniel J. O'Connor, Cameron Hardy
  • Patent number: 8616278
    Abstract: Certain viscous oil reservoirs are too deep to be commercially mined but lack an adequate top seal to employ in situ recovery methods such as SAGD. Without an adequate top seal, gases from the reservoir can rise into overlying aquifers and potentially to the surface. While ice-like hydrates would not normally form above the oil reservoir during in situ recovery, an additive can be added to promote hydrate formation. In this way, a hydrate barrier can be formed to act as a top seal to contain these gases.
    Type: Grant
    Filed: May 2, 2011
    Date of Patent: December 31, 2013
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Thomas J. Boone, Mori Y. Kwan