Patents by Inventor D. Chad Brennels

D. 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