Patents Represented by Attorney G. Keith deBrucky

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  • Well cementing process and gasified cements useful therein
    Patent number: 4367093
    Abstract: A process and method for cementing adjacent to a subterranean gas containing zone. The cementing compositions comprise a hydraulic cement, aluminum powder ot generate hydrogen gas, and an inhibitor which retards the generation of hydrogen gas produced by the aluminum powder.
    Type: Grant
    Filed: July 10, 1981
    Date of Patent: January 4, 1983
    Assignee: Halliburton Company
    Inventors: John F. Burkhalter, Jerry D. Childs, David L. Sutton
  • Methods of forming isocyanate polymers for earth-sealing operations
    Patent number: 4365670
    Abstract: Methods of sealing particular areas, including subterranean well formations, are provided wherein the methods utilize an isocyanate polymer suitable as a sealing agent having a controllable gelation time in the presence of water without formation of excess foam by using one or more typical di- or polyisocyanates with one or more alcoholic or acidic compounds and a particular catalyst namely, triethylene-diamine, Groups 3 and 4 metal-organic compounds or mixtures thereof. A particularly useful catalyst is tributyl titanate.
    Type: Grant
    Filed: June 2, 1980
    Date of Patent: December 28, 1982
    Assignee: Halliburton Company
    Inventor: Homer C. McLaughlin
  • Well cementing process and gasified cements useful therein
    Patent number: 4340427
    Abstract: A process for cementing adjacent a subterranean gas-containing zone, in which process a cement slurry containing a stabilized, dispersed gas is placed adjacent the zone. Sufficient gas is present in the cement slurry or is capable of being generated within the slurry to prevent the connate formation gas under pressure from passing into or around the cement prior to the time the cement has set up.
    Type: Grant
    Filed: March 3, 1980
    Date of Patent: July 20, 1982
    Assignee: Halliburton Company
    Inventor: David L. Sutton
  • Acid dissolvable cements and methods of using the same
    Patent number: 4335788
    Abstract: Cement compositions which upon curing have high compressive strengths and are rapidly dissolved in acids are provided comprised of water, a metal halide or sulfate selected from the group consisting of magnesium, aluminum and zinc halides and sulfates, a metal oxide selected from the group consisting of magnesium, aluminum and zinc oxides and a metal carbonate selected from the group consisting of calcium and barium carbonates. Methods of using the cement compositions are also provided.
    Type: Grant
    Filed: January 24, 1980
    Date of Patent: June 22, 1982
    Assignee: Halliburton Company
    Inventors: Joseph R. Murphey, Bill M. Young