Patents by Inventor Cindy C. Fang

Cindy C. Fang 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).

  • Inverse emulsion polymers as lost circulation material
    Patent number: 8703657
    Abstract: A sealant composition comprising an inverse emulsion polymer and methods of servicing a wellbore using the same are disclosed. In one embodiment, a method of servicing a wellbore that penetrates a subterranean formation is disclosed. The method comprises placing a sealant composition comprising an inverse emulsion polymer into the wellbore to reduce a loss of fluid to the subterranean formation during placement of the fluid in the wellbore.
    Type: Grant
    Filed: December 6, 2010
    Date of Patent: April 22, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Cindy C. Fang, Carl Joseph Thaemlitz, Eric Davidson
  • Lost circulation material formulation and method of use
    Patent number: 8043997
    Abstract: A lost circulation material and method for well treatment employing the material that is effective at sealing or plugging small fissures and large fractures and has utility over a wide range of temperatures, including high temperatures. The material has an optimized bimodal particle distribution and optionally has a polymer flocculent or water swellable polymer.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: October 25, 2011
    Assignee: Halliburton Energy Services Inc.
    Inventors: Donald L. Whitfill, Cindy C. Fang, Matthew Miller
  • Inverse Emulsion Polymers as Lost Circulation Material
    Publication number: 20110118381
    Abstract: A sealant composition comprising an inverse emulsion polymer and methods of servicing a wellbore using the same are disclosed. In one embodiment, a method of servicing a wellbore that penetrates a subterranean formation is disclosed. The method comprises placing a sealant composition comprising an inverse emulsion polymer into the wellbore to reduce a loss of fluid to the subterranean formation during placement of the fluid in the wellbore.
    Type: Application
    Filed: December 6, 2010
    Publication date: May 19, 2011
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Cindy C. Fang, Carl J. Thaemlitz, Eric Davidson
  • Inverse emulsion polymers as lost circulation material
    Patent number: 7870903
    Abstract: A sealant composition comprising an inverse emulsion polymer and methods of servicing a wellbore using the same are disclosed. In one embodiment, a method of servicing a wellbore that penetrates a subterranean formation is disclosed. The method comprises placing a sealant composition comprising an inverse emulsion polymer into the wellbore to reduce a loss of fluid to the subterranean formation during placement of the fluid in the wellbore.
    Type: Grant
    Filed: July 13, 2005
    Date of Patent: January 18, 2011
    Assignee: Halliburton Energy Services Inc.
    Inventors: Cindy C. Fang, Carl J. Thaemlitz, Eric Davidson
  • Lost circulation material formulation and method of use
    Publication number: 20090221452
    Abstract: A lost circulation material and method for well treatment employing the material that is effective at sealing or plugging small fissures and large fractures and has utility over a wide range of temperatures, including high temperatures. The material has an optimized bimodal particle distribution and optionally has a polymer flocculent or water swellable polymer.
    Type: Application
    Filed: February 29, 2008
    Publication date: September 3, 2009
    Inventors: Donald L. Whitfill, Cindy C. Fang, Matthew Miller