Patents Represented by Attorney Thomas R. Weaver

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  • Cement fluid loss control additives and methods
    Patent number: 5151131
    Abstract: Oil field cement liquid fluid loss control additives and methods of field preparing such additives prior to preparing a cement composition containing the additive are provided. The method of field preparing the liquid fluid loss control additive comprises admixing an organophilic clay suspending agent with a liquid hydrocarbon, combining a surfactant with the mixture and then combining at least one hydrophilic polymer with the mixture to form the additive.
    Type: Grant
    Filed: August 26, 1991
    Date of Patent: September 29, 1992
    Assignee: Halliburton Company
    Inventors: John Burkhalter, Jolinda K. Suson
  • Well cement compositions having improved properties and methods
    Patent number: 5149370
    Abstract: Cement compositions which have improved properties such as increased stability, reduced settling tendencies, enhanced fluid loss properties and the like and methods of using such cement compositions are provided. The cement compositions are comprised of water, hydraulic cement and an aqueous colloidal silicic acid suspension wherein the colloidal silicic acid particles have a specific surface area in the range of from about 50 m.sup.2 /g to about 1000 m.sup.2 /g.
    Type: Grant
    Filed: October 21, 1991
    Date of Patent: September 22, 1992
    Assignee: Halliburton Company
    Inventors: Stein Olaussen, Audun Bjordal, Geir Solland
  • Foamed well cementing compositions and methods
    Patent number: 5147565
    Abstract: Foamed well cementing compositions and methods of performing cementing operations in salt containing subterranean environments are provided. The compositions are comprised of hydraulic cement, salt water, dispersed gas and a foaming agent selected from the group consisting of surfactants of the formula R--(OR').sub.n --OSO.sub.3.sup.- X.sup.+.
    Type: Grant
    Filed: August 7, 1991
    Date of Patent: September 15, 1992
    Assignee: Halliburton Company
    Inventors: Daniel L. Bour, Jerry D. Childs
  • Methods of reducing the water permeability of water and oil producing subterranean formations
    Patent number: 5146986
    Abstract: A method of reducing the water produced from a subterranean formation penetrated by a wellbore without appreciably reducing the oil produced therefrom is provided. In accordance with the method, the formation is contacted with a hydrocarbon treating solution having dissolved therein a surface active agent comprosed of one or more fatty acid imidazolyl compounds.
    Type: Grant
    Filed: December 11, 1991
    Date of Patent: September 15, 1992
    Assignee: Halliburton Company
    Inventor: E. Dwyann Dalrymple
  • Composition and method for inhibiting thermal thinning of cement
    Patent number: 5135577
    Abstract: The invention relates to cement compositions and methods of use for cementing oil and gas and/or geothermal wells which reduce thermal thinning of slurries at elevated downhole temperatures. To combat thermal thinning, latex is added to a cement slurry without a latex stabilizing surfactant resulting in a slurry having low mixing viscosity and good solids suspension properties at downhole temperatures.
    Type: Grant
    Filed: November 5, 1990
    Date of Patent: August 4, 1992
    Assignee: Halliburton Company
    Inventor: Lance E. Brothers
  • Foamed well cementing compositions and methods
    Patent number: 5133409
    Abstract: Foamed well cementing compositions and methods of performing cementing operations in salt containing subterranean environments are provided. The compositions are comprised of hydraulic cement, salt water, dispersed gas and a foaming agent selected from the group consisting of surfactants of the formula R--(OR').sub.n --OSO.sup.-.sub.3 X.sup.+.
    Type: Grant
    Filed: December 12, 1990
    Date of Patent: July 28, 1992
    Assignee: Halliburton Company
    Inventors: Daniel L. Bour, Jerry D. Childs
  • Chloride-free set accelerated cement compositions and methods
    Patent number: 5127955
    Abstract: Chloride-free set accelerated cement compositions and methods of using the compositions for cementing conduits in well bores are provided. The compositions are comprised of hydraulic cement, sufficient water to form a pumpable slurry and a chloride-free set accelerator selected from trihydroxybenzoic acid, disodium dihydroxybenzenedisulfonate or derivatives of such compounds.
    Type: Grant
    Filed: October 17, 1990
    Date of Patent: July 7, 1992
    Assignee: Halliburton Company
    Inventors: Slaton E. Fry, Patty L. Totten, Jerry D. Childs, Donald W. Lindsey
  • Repair of microannuli and cement sheath
    Patent number: 5127473
    Abstract: This invention relates to a method of repairing holes, channels, voids and microannuli in a cement sheath situated in the annular space between a casing and the wall of a wellbore penetrating a subterranean earth formation, which method involves the use of a hydraulic cement consisting of discrete particles having a particle size not greater than about 30 microns. The cement, which is utilized in a water slurry, has a low density, good thixotropic properties and, in one embodiment, expansive characteristics.
    Type: Grant
    Filed: January 8, 1991
    Date of Patent: July 7, 1992
    Assignee: Halliburton Services
    Inventors: Kirk L. Harris, Edward F. Vinson, Daniel L. Bour, David P. Ewert, Richard R. Gerke
  • Methods of forming consolidatable resin coated particulate materials in aqueous gels
    Patent number: 5128390
    Abstract: Improved methods of forming and suspending consolidatable resin composition coated particulate materials in gelled aqueous carrier liquids are provided. In accordance with the methods, a gelled aqueous carrier liquid, uncoated particulate material, a resin composition which will subsequently harden and a surface active agent are admixed whereby the particulate material is coated with the resin composition and suspended in the gelled aqueous carrier liquid.
    Type: Grant
    Filed: January 22, 1991
    Date of Patent: July 7, 1992
    Assignee: Halliburton Company
    Inventors: Joseph R. Murphey, Kenneth Totty
  • Primary cementing
    Patent number: 5125455
    Abstract: This invention relates to a method of cementing a cylinder in a bore, such as a casing in a wellbore, which method involves the use of a hydraulic cement consisting of discrete particles having a particle size not greater than about 30 microns. The cement which is utilized in a water slurry, has a low density, good thixotropic properties and, in one embodiment, expansive characteristics.
    Type: Grant
    Filed: January 8, 1991
    Date of Patent: June 30, 1992
    Assignee: Halliburton Services
    Inventors: Kirk L. Harris, Edward F. Vinson, Daniel L. Bour, Patrick T. Brunette, Philip C. Freyaldenhoven, Lindsey D. Lee
  • Repairing leaks in casings
    Patent number: 5123487
    Abstract: This invention relates to a method of repairing a hole in and thereby terminating the undesirable flow of fluid through a hole in a casing disposed in a wellbore penetrating a subterranean earth formation which method involves the same use of a hydraulic cement consisting of discrete particles having a particle size not greater than about 30 microns. The cement, which is utilized in a water slurry, has a low density, good thixotropic properties and, in one embodiment, expansive characteristics.
    Type: Grant
    Filed: January 8, 1991
    Date of Patent: June 23, 1992
    Assignee: Halliburton Services
    Inventors: Kirk L. Harris, Edward F. Vinson, Daniel L. Bour, David P. Ewert, Barry B. Ekstrand
  • Squeeze cementing
    Patent number: 5121795
    Abstract: This invention relates to a method of terminating the undesirable flow of fluid through a gravel pack in a wellbore, or from a highly permeable portion of or fracture in a subterranean formation into a wellbore, which method involves the use of a hydraulic cement consisting of discrete particles having a particle size not greater than about 30 microns. The cement, which is utilized in either a slurry of water or hydrocarbon liquid, has a low density, good thixotropic properties and, in one embodiment, expansive characteristics.
    Type: Grant
    Filed: January 8, 1991
    Date of Patent: June 16, 1992
    Assignee: Halliburton Company
    Inventors: David P. Ewert, D. P. Kundert, Jeffrey A. Dahl, E. Dwyann Dalrymple, Richard R. Gerke
  • Method for clay stabilization with quaternary amines
    Patent number: 5097904
    Abstract: A method of treating a clay-containing subterranean formation with an aqueous fluid is disclosed. The method features the use of quaternary ammonium compounds as additives to control formation damage caused by contacting the formation with the aqueous fluid.
    Type: Grant
    Filed: February 28, 1991
    Date of Patent: March 24, 1992
    Assignee: Halliburton Company
    Inventor: Ronald E. Himes
  • Well bore drilling direction changing method
    Patent number: 5086850
    Abstract: This invention relates to a method of changing the direction of drilling a well bore wherein a cement plug is formed in the well bore at a location therein where the direction of drilling is to be changed and a pilot hole is drilled in the plug. The cement plug is formed using a slurry containing hydraulic cement consisting of discrete particles having a particle size not greater than about 30 microns. The use of such finely divided hydraulic cement significantly reduces the waiting time required for the slurry to develop sufficient compressive strength.
    Type: Grant
    Filed: April 2, 1991
    Date of Patent: February 11, 1992
    Assignee: Halliburton Company
    Inventors: Kirk L. Harris, Clyde Cook, Jr.
  • Method and composition for preventing the formation of sludge in crude oil
    Patent number: 5084192
    Abstract: An aqueous acidic composition useful for conducting a formation acidizing method is disclosed. The composition, which is comprised of a blend of acetic acid, formic acid, a fatty alkyl quaternary ammonium salt, a fatty aralkyl quaternary ammonium salt and an alkanoic and/or alkenoic acid having at least four carbon atoms and at least two alcoholic hydroxyl groups per molecule, resists the formation of sludge, and insoluble ferric and calcium compounds.
    Type: Grant
    Filed: April 10, 1991
    Date of Patent: January 28, 1992
    Assignee: Halliburton Company
    Inventors: Walter R. Dill, James L. Lane, Jr.
  • Method for preventing the formation of sludge in crude oil
    Patent number: 5058678
    Abstract: An aqueous acidic composition useful for conducting a formation acidizing method is disclosed. The composition, which is comprised of a blend of acetic acid, formic acid, a fatty alkyl quaternary ammonium salt, a fatty aralkyl quaternary ammonium salt and an alkanoic and/or alkenoic acid having at least four carbon atoms and at least two alcoholic hydroxyl groups per molecule, resists the formation of sludge, and insoluble ferric and calcium compounds.
    Type: Grant
    Filed: September 28, 1990
    Date of Patent: October 22, 1991
    Assignee: Halliburton Company
    Inventors: Walter R. Dill, James L. Lane, Jr.
  • Method for setting well casing using a resin coated particulate
    Patent number: 5058676
    Abstract: An improved method for completing wells formed in both consolidated and unconsolidated formations is disclosed. Further, methods are disclosed for completing deviated wells formed in consolidated formations which require stimulation by hydraulic fracturing. The present invention specifically relates to more efficient, less expensive techniques for well completion comprising novel techniques for the utilization of permeably consolidatably, resin coated particulates.
    Type: Grant
    Filed: October 30, 1989
    Date of Patent: October 22, 1991
    Assignee: Halliburton Company
    Inventors: Harvey J. Fitzpatrick, Jimmie D. Weaver, J. Michael Wilson
  • Set retarded cement compositions and methods for well cementing
    Patent number: 5049288
    Abstract: Set retarded cement compositions for cementing across a zone or zones in a well having enhanced compressive strength and rapid gel strength development after placement. The cement compositions are comprised of hydraulic cement, sufficient fresh water to form a pumpable slurry, a set retarder comprising a copolymer of 2-acrylamido, 2-methylpropane sulfonic acid and acrylic acid having a average molecular weight below about 5000 and any other desired additives. Methods of cementing utilizing the cement composition also are provided.
    Type: Grant
    Filed: April 23, 1991
    Date of Patent: September 17, 1991
    Assignee: Halliburton Company
    Inventors: Lance E. Brothers, Donald W. Lindsey, Dralen T. Terry
  • Compensated turbine flowmeter
    Patent number: 5046369
    Abstract: A temperature and pressure compensated gas flowmeter is provided which reads uncompensated line parameters and outputs a frequency signal representative of the gas flow rate referenced to standard conditions. The frequency signal is compatible with a number of interface devices, such as remote terminal units, field computers and displays. Further, the uncompensated line parameters are also provided to the interface devices such that the compensated frequency signal can be verified.
    Type: Grant
    Filed: April 11, 1989
    Date of Patent: September 10, 1991
    Assignee: Halliburton Company
    Inventors: Charles L. Boyd, Steven L. Skinner, Kurt L. Werner
  • Apparatus and method for cutting an object in a well
    Patent number: 5046563
    Abstract: A cutting tool to cut a tubular element in a well is constructed of pellets of less sensitive explosive material detonated by a pellet of a more sensitive explosive material. All the explosive material is packaged in individual packages which qualify for a lower cost, faster, safer transportation classification, but which explosive material is consolidated and assembled at a field location into a cutting tool capable of generating a sufficient force to cut the tubular element. A corresponding method is also disclosed.
    Type: Grant
    Filed: November 7, 1989
    Date of Patent: September 10, 1991
    Assignee: Jet Research Center, Inc.
    Inventors: William T. Engel, Hector A. Tamayo