Patents by Inventor Chad Brennels

Chad Brennels 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).

  • Foamed cement compositions, additives, and associated methods
    Patent number: 7861782
    Abstract: A variety of methods and compositions are disclosed, including, in one embodiment, a cement composition comprising: cement; a surfactant composition comprising: an ethoxylated alcohol ether sulfate in an amount in the range of about 60 to about 64 parts by weight, a first alkyl or alkene amidopropyl betaine in an amount in the range of about 30 to about 33 parts by weight, and a second alkyl or alkene amidopropyl betaine in an amount in the range of about 1 to about 5 parts by weight; a gas; and water.
    Type: Grant
    Filed: July 31, 2008
    Date of Patent: January 4, 2011
    Assignee: Halliburton Energy Services Inc.
    Inventors: Jiten Chatteri, D. Chad Brennels, Bobby J. King
  • Extended settable compositions comprising cement kiln dust and associated methods
    Patent number: 7478675
    Abstract: An embodiment of the present invention includes a method of cementing in a subterranean formation comprising: providing an extended settable composition comprising hydraulic cement, cement kiln dust, water, and a set retarding additive, wherein the extended settable composition is capable of remaining in a pumpable fluid state for at least about 1 day; adding a cement set accelerator to the extended settable composition; introducing the extended settable composition into a well bore; and allowing the extended settable composition to set. Another embodiment of the present invention includes a method of cementing in a subterranean formation comprising: providing an extended settable composition comprising hydraulic cement, cement kiln dust, water, and a set retarding additive; storing the extended settable composition; adding a cement set accelerator to the extended settable composition; introducing the extended settable composition into a well bore; and allowing the extended settable composition to set.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: January 20, 2009
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Craig W. Roddy, Jiten Chatterji, Bobby J. King, D. Chad Brennels
  • Extended Settable Compositions Comprising Cement Kiln Dust and Associated Methods
    Publication number: 20080156491
    Abstract: An embodiment of the present invention includes a method of cementing in a subterranean formation comprising: providing an extended settable composition comprising hydraulic cement, cement kiln dust, water, and a set retarding additive, wherein the extended settable composition is capable of remaining in a pumpable fluid state for at least about 1 day; adding a cement set accelerator to the extended settable composition; introducing the extended settable composition into a well bore; and allowing the extended settable composition to set. Another embodiment of the present invention includes a method of cementing in a subterranean formation comprising: providing an extended settable composition comprising hydraulic cement, cement kiln dust, water, and a set retarding additive; storing the extended settable composition; adding a cement set accelerator to the extended settable composition; introducing the extended settable composition into a well bore; and allowing the extended settable composition to set.
    Type: Application
    Filed: February 21, 2008
    Publication date: July 3, 2008
    Inventors: Craig W. Roddy, Jiten Chatterji, Bobby J. King, D. Chad Brennels
  • Cement compositions comprising lignite grafted fluid loss control additives
    Patent number: 7388045
    Abstract: Novel well cement compositions are provided. Exemplary embodiments of the well cement compositions comprise water, a cement and a fluid loss control additive comprising a graft polymer. The graft polymer comprises a backbone comprising a lignite. The graft polymer further comprises grafted monomers selected from the group consisting of 2-acrylamido-2-methylpropanesulfonic acid, acrylamide, acrylic acid, vinylphosphonic acid, diallyldimethylammonium chloride and salts thereof.
    Type: Grant
    Filed: February 5, 2007
    Date of Patent: June 17, 2008
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Sam Lewis, Jiten Chatterji, Bobby King, Chad Brennels
  • Method of using lignite grafted fluid loss control additives in cementing operations
    Patent number: 7360598
    Abstract: Methods of cementing in a subterranean formation are provided. An exemplary embodiment comprises introducing a cement composition into a subterranean formation. The cement composition comprises water, a cement and a fluid loss control additive comprising a graft polymer. The graft polymer comprises a backbone comprising a lignite. The graft polymer further comprises grafted monomers selected from the group consisting of 2-acrylamido-2-methylpropanesulfonic acid, acrylamide, acrylic acid, vinylphosphonic acid, diallyldimethylammonium chloride and salts thereof.
    Type: Grant
    Filed: February 5, 2007
    Date of Patent: April 22, 2008
    Assignee: Halliburton Energy Services, Inc,
    Inventors: Sam Lewis, Jiten Chatterji, Bobby King, Chad Brennels
  • Foamed treatment fluids and associated methods
    Patent number: 7134497
    Abstract: Foamed treatment fluids comprising water, a gas, and a foaming and foam stabilizing surfactant mixture comprising an alkali salt of an alkyl ether sulfate, wherein the alkali salt of the alkyl ether sulfate comprises an alkali salt of a C6-10 alkyl ether sulfate, and an alkali salt of a C4 alkyl ether sulfate, an alkyl amidopropyl amphoteric surfactant selected from the group consisting of an alkyl amidopropyl hydroxysultaine, an alkyl amidopropyl betaine, and combinations thereof, and an alkyl amidopropyl dimethylamine oxide. Methods comprising providing the foamed treatment fluid and introducing the foamed treatment fluid into a subterranean formation.
    Type: Grant
    Filed: February 15, 2006
    Date of Patent: November 14, 2006
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, Karen L. King, Bobby J. King, Stanley J. Heath, Chad Brennels