Patents by Inventor Jack F. Tate

Jack F. Tate has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4332688
    Abstract: Significant improvement in the recovery of hydrocarbons from a subterranean hydrocarbon-bearing formation is accomplished by injecting into the formation via an injection well drilled into a formation communicating with an adjacent producing well and containing sandstone and clay components, and aqueous solution of an acid such as hydrochloric acid and a fluorine-containing acid or salt and having dissolved therein an oxyalkylated acrylamido alkanesulfonic acid polymer whereupon the acid solution reacts with the acid soluble components of the formation creating passageways thus facilitating the flow of fluids therein and thereby increasing the recovery of hydrocarbons from the formation through the adjacent production well.
    Type: Grant
    Filed: January 8, 1979
    Date of Patent: June 1, 1982
    Assignee: Texaco Inc.
    Inventor: Jack F. Tate
  • Patent number: 4277580
    Abstract: The production of hydrocarbons from a subterranean hydrocarbon-bearing formation containing acid-soluble components, such as one composed at least in part of dolomite or limestone, is stimulated by injecting into the formation usually via casing and cement pack perforations a composition comprising an aqueous solution of a mineral acid having dissolved therein a small amount of a vinylpyrrolidone polymer or an alkoxylated vinylpyrrolidone polymer. The increase in the permeability and porosity of the formation achieved utilizing the method of invention results in a substantial improvement in hydrocarbon recovery. Optionally, the injected composition may be saturated with natural gas at the injection pressure. In another embodiment this invention relates to the oxyalkylated vinylpyrrolidone polymer compositions.
    Type: Grant
    Filed: October 15, 1979
    Date of Patent: July 7, 1981
    Assignee: Texaco Inc.
    Inventors: Joseph C. Allen, Jack F. Tate
  • Patent number: 4219429
    Abstract: The production of hydrocarbons from a subterranean hydrocarbon-bearing formation containing acid-soluble components, such as one composed at least in part of dolomite or limestone, is stimulated by injecting into the formation usually via casing and cement pack perforations a composition comprising an aqueous solution of a mineral acid having dissolved therein a small amount of a vinylpyrrolidone terpolymer. The increase in the permeability and porosity of the formation achieved utilizing the method of invention results in a substantial improvement in hydrocarbon recovery. Optionally, the injected composition may be saturated with natural gas at the injection pressure.
    Type: Grant
    Filed: May 22, 1978
    Date of Patent: August 26, 1980
    Assignee: Texaco Inc.
    Inventors: Joseph C. Allen, Jack F. Tate
  • Patent number: 4210205
    Abstract: Significant improvement in the recovery of hydrocarbons from a subterranean hydrocarbon-bearing calcareous formation is accomplished by injecting into the formation via an injection well drilled into a formation communicating with an adjacent producing well and containing acid-soluble components which may or may not have water-sensitive clays and shales included therein, a composition comprising an aqueous solution of a mineral acid having dissolved therein a small amount of a vinylpyrrolidone terpolymer solution whereupon the acid solution reacts with the acid-soluble components of the formation creating passageways or enlarging existing passageways thus facilitating the flow of fluids therein and thereby increasing the recovery of hydrocarbons from the formation through the adjacent producing well. Optionally, the injected composition may be saturated with natural gas at the injection pressure.
    Type: Grant
    Filed: May 22, 1978
    Date of Patent: July 1, 1980
    Assignee: Texaco Inc.
    Inventors: Joseph C. Allen, Jack F. Tate
  • Patent number: 4206058
    Abstract: The production of hydrocarbons from a subterranean hydrocarbon-bearing formation containing acid-soluble components, such as one composed at least in part of dolomite or limestone, is stimulated by injecting into the formation a composition comprising an aqueous solution of a mineral acid having dissolved therein an oxyalkylated acrylamido alkanesulfonic acid polymer. The increase in the permeability and porosity of the formation achieved utilizing the method of invention results in a substantial improvement in hydrocarbon recovery.
    Type: Grant
    Filed: February 13, 1978
    Date of Patent: June 3, 1980
    Assignee: Texaco Inc.
    Inventor: Jack F. Tate
  • Patent number: 4200154
    Abstract: The production of hydrocarbons from a subterranean hydrocarbon-bearing formation containing acid-soluble components, such as one containing clays or siliceous minerals as exemplified by sandstone, shale, etc. is stimulated by injecting into the formation a composition comprising an aqueous solution of a mineral acid and a fluorine-containing acid or salt and having dissolved therein an oxyalkylated acrylamido alkanesulfonic acid polymer. The indepth increase in the permeability and porosity of the formation achieved utilizing the method of invention results in a substantial improvement in hydrocarbon recovery.
    Type: Grant
    Filed: February 13, 1978
    Date of Patent: April 29, 1980
    Assignee: Texaco Inc.
    Inventor: Jack F. Tate
  • Patent number: 4200151
    Abstract: Significant improvement in the recovery of hydrocarbons from a subterranean hydrocarbon-bearing calcareous formation is accomplished by injecting into the formation via an injection well drilled into a formation communicating with an adjacent producing well and containing acid-soluble components which may or may not have water-sensitive clays and shales included therein, an acidic aqueous oxyalkylated acrylamido alkanesulfonic acid polymer solution whereupon the acid solution reacts with the acid-soluble components of the formation creating passageways or enlarging existing passageways thus facilitating the flow of fluids therein and thereby increasing the recovery of hydrocarbons from the formation through the adjacent producing well.
    Type: Grant
    Filed: February 13, 1978
    Date of Patent: April 29, 1980
    Assignee: Texaco Inc.
    Inventor: Jack F. Tate
  • Patent number: 4163476
    Abstract: Significant improvement in the recovery of hydrocarbons from a subterranean hydrocarbon-bearing formation is accomplished by injecting into the formation via an injection well drilled into a formation communicating with an adjacent producing well and containing sandstone and clay components, and aqueous solution of an acid such as hydrochloric acid and a fluorine-containing acid or salt and having dissolved therein an oxyalkylated acrylamido alkanesulfonic acid polymer whereupon the acid solution reacts with the acid soluble components of the formation creating passageways thus facilitating the flow of fluids therein and thereby increasing the recovery of hydrocarbons from the formation through the adjacent production well.
    Type: Grant
    Filed: February 13, 1978
    Date of Patent: August 7, 1979
    Assignee: Texaco Inc.
    Inventor: Jack F. Tate
  • Patent number: 4094798
    Abstract: A fluid containing a dual surfactant system and a process using the fluid for recovering petroleum from petroleum formations containing high salinity water, e.g. from 50,000 to 225,000 parts per million which may include from about 200 to about 14,000 parts per million polyvalent ions such as calcium and/or magnesium dissolved therein and a method of using said fluid in a surfactant flooding oil recovery process. The surfactant system comprises a water-soluble salt of petroleum sulfonate or an alkyl or alkylaryl sulfonate wherein the alkyl chain may have from 5 to 25 carbon atoms, plus a phosphate ester surfactant with an average molecular weight not to exceed 1000. The surfactant combination is stable up to at least 225.degree. F and resistant to bacterial attack and inhibits scale formation.
    Type: Grant
    Filed: December 27, 1976
    Date of Patent: June 13, 1978
    Assignee: Texaco Inc.
    Inventors: Jack F. Tate, Jim Maddox, Jr.
  • Patent number: 4079011
    Abstract: The production of hydrocarbons from a subterranean hydrocarbon-bearing formation containing acid-soluble components, such as one containing clays or siliceous minerals as exemplified by sandstone, shale, etc. is stimulated by injecting into the formation a composition comprising an aqueous solution of a mineral acid and a fluorine-containing acid or salt and having dissolved therein a vinylpyrrolidone polymer and, if desired, a small amount of a water-soluble acrylic acid-type polymer. The in-depth increase in the permeability and porosity of the formation achieved utilizing the method of invention results in a substantial improvement in hydrocarbon recovery.
    Type: Grant
    Filed: April 26, 1976
    Date of Patent: March 14, 1978
    Assignee: Texaco Inc.
    Inventor: Jack F. Tate
  • Patent number: 4026874
    Abstract: This invention concerns methods of imparting properties of scale resistance to surfaces upon which adherent scale is normally prone to form during contact with mineralized waters through the use of novel; polyurethane-type resins, characterized by containing pendant polyoxyalkylene chains attached to a basic polyurethane skeletal network.
    Type: Grant
    Filed: June 25, 1975
    Date of Patent: May 31, 1977
    Assignee: Texaco Inc.
    Inventors: Thomas E. Sample, Jr., James W. Hughes, Jack F. Tate
  • Patent number: 4008165
    Abstract: A three surfactant system usable in high temperature petroleum formations containing water having from about 200 to about 14,000 parts per million polyvalent ions such as calcium and/or magnesium dissolved therein and a pH of from 5 to 9, and a method of using said surfactant system for recovering petroleum from high temperature subterranean petroleum-containing formations. The three component surfactant system comprises (1) water-soluble salt of an alkyl or alkylaryl sulfonate wherein the alkyl chain may have from 5 to 25 carbon atoms, (2) a phosphate ester surfactant with an average molecular weight not to exceed 1000, and (3) a surfactant having the following betaine related structure: ##STR1## wherein R is an alkyl group having from 12 to 24 carbon atoms, and n is an integer from one to five. The surfactant combination is stable up to at least 225.degree. F and resistant to bacterial attack and inhibits scale formation.
    Type: Grant
    Filed: July 7, 1975
    Date of Patent: February 15, 1977
    Assignee: Texaco Inc.
    Inventors: Jim Maddox, Jr., Jack F. Tate
  • Patent number: 3988253
    Abstract: Composition and method for the treatment of inorganic mineral scale, using a treating composition consisting of a water soluble substituted taurine of prescribed formula in an amount of from 0.0005% to about 0.005%, on a weight basis.
    Type: Grant
    Filed: December 20, 1974
    Date of Patent: October 26, 1976
    Assignee: Texaco Inc.
    Inventor: Jack F. Tate
  • Patent number: 3979315
    Abstract: Composition and method for the treatment of inorganic mineral scale, particularly calcium and/or barium sulfate scale, using a treating composition consisting of a water-soluble sulfonated ethoxylated alkylphenol of prescribed formula in an amount of from about 0.0005 to about 0.005%, on a weight basis.
    Type: Grant
    Filed: December 20, 1974
    Date of Patent: September 7, 1976
    Assignee: Texaco Inc.
    Inventors: Jack F. Tate, Russell D. Shupe, Jim Maddox, Jr.
  • Patent number: 3975282
    Abstract: Composition and method for the treatment of inorganic mineral scale particularly calcium and/or barium sulfate scale, using a treating composition consisting of a water-soluble sulfonated ethoxylated alcohol of prescribed formula in an amount of from about 0.0005% to about 0.005%, on a weight basis.
    Type: Grant
    Filed: December 20, 1974
    Date of Patent: August 17, 1976
    Assignee: Texaco Inc.
    Inventors: Jack F. Tate, Russell D. Shupe, Jim Maddox, Jr.
  • Patent number: 3975281
    Abstract: Composition and method for the treatment of scale, particularly calcium and/or barium sulfate scale, using an alkyl benzene sulfonate, including the alkali metal and ammonium salts thereof, said alkyl group containing from about 8 to about 14 carbon atoms at a concentration of from about 10 to about 50 ppm on a weight basis.
    Type: Grant
    Filed: December 26, 1973
    Date of Patent: August 17, 1976
    Assignee: Texaco Inc.
    Inventors: Jack F. Tate, Jim Maddox, Jr.
  • Patent number: 3968840
    Abstract: A process is provided whereby a subterranean formation may be treated uniformly with acid at a controlled rate to a considerable distance from an injection point. The process includes an introduction of an acid which is solid but will slowly solubilize in water or brine in a subterranean formation. The introduction of the solid acid may take place via fracture fissures in the formation and also if desired in conjunction with a propping agent.
    Type: Grant
    Filed: May 25, 1973
    Date of Patent: July 13, 1976
    Assignee: Texaco Inc.
    Inventor: Jack F. Tate
  • Patent number: 3962110
    Abstract: A process and composition for the treatment of oil and gas wells to prevent and/or inhibit the build-up of an undesirable inorganic mineral scale deposits in which an aqueous solution of a vinylpyrrolidone polymer is employed in an amount sufficient to prevent and/or inhibit the development of such scale.
    Type: Grant
    Filed: October 4, 1974
    Date of Patent: June 8, 1976
    Assignee: Texaco Inc.
    Inventor: Jack F. Tate
  • Patent number: 3951793
    Abstract: Composition and method for the treatment of scale, particularly calcium and/or barium sulfate scale, using a treating composition consisting of about one part by weight of a sulfated/sulfonated polyethoxy alkyl phenol containing from about 8 to about 14 carbon atoms in the alkyl group and from about 4 to about 10 ethoxy groups, in admixture with from about 1 to 3 parts by weight of a C.sub.8 -C.sub.14 alkyl benzene sulfonate, including the alkali metal and ammonium salts of one or both compounds, and mixtures thereof.
    Type: Grant
    Filed: December 26, 1973
    Date of Patent: April 20, 1976
    Assignee: Texaco Inc.
    Inventors: Jack F. Tate, Jim Maddox, Jr.
  • Patent number: 3946813
    Abstract: The production of hydrocarbons from a subterranean hydrocarbon-bearing formation containing acid-soluble components, such as one composed at least in part of dolomite or limestone, is stimulated by injecting into the formation a composition comprising an aqueous solution of a mineral acid having dissolved therein a compound hereinafter described. The elimination of plugging of capillary openings within the formation and mineral scale deposition on production equipment due to post-precipitation of dissolved salts subsequent to acidization by means of the said compound results in a substantial improvement in hydrocarbon recovery.
    Type: Grant
    Filed: December 20, 1974
    Date of Patent: March 30, 1976
    Assignee: Texaco Inc.
    Inventors: Jack F. Tate, Jim Maddox, Jr., Russell D. Shupe