Patents by Inventor Rodney B. Waltman

Rodney B. Waltman 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).

  • Viscosified treatment fluids and associated methods of use
    Patent number: 7299876
    Abstract: In one embodiment, provided is a method of fracturing a portion of a subterranean formation that comprises providing a viscosified treatment fluid comprising a single salt aqueous fluid having a density of greater than 9 pounds per gallon and a crosslinked viscosifying agent, and contacting the portion of the subterranean formation with a viscosified treatment fluid so as to create or enhance one or more fractures therein, wherein the viscosified treatment fluid is introduced into a well bore that penetrates the portion of the subterranean formation to be fractured at a surface pressure of less than about 25,000 pounds per square inch. In other embodiments, provided are methods of frac packing a subterranean formation and methods of reducing a surface pressure needed to create one or more fractures in a portion of a subterranean formation.
    Type: Grant
    Filed: March 19, 2007
    Date of Patent: November 27, 2007
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Paul D. Lord, Rodney B. Waltman, David W. Ritter, Sanjay Vitthal
  • Viscosified treatment fluids and associated methods of use
    Patent number: 7165617
    Abstract: In one embodiment, provided is a method of fracturing a portion of a subterranean formation that comprises providing a viscosified treatment fluid comprising a single salt aqueous fluid having a density of greater than 9 pounds per gallon and a crosslinked viscosifying agent, and contacting the portion of the subterranean formation with a viscosified treatment fluid so as to create or enhance one or more fractures therein, wherein the viscosified treatment fluid is introduced into a well bore that penetrates the portion of the subterranean formation to be fractured at a surface pressure of less than about 25,000 pounds per square inch. In other embodiments, provided are methods of frac packing a subterranean formation and methods of reducing a surface pressure needed to create one or more fractures in a portion of a subterranean formation.
    Type: Grant
    Filed: July 27, 2004
    Date of Patent: January 23, 2007
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Paul D. Lord, Rodney B. Waltman, David W. Ritter, Sanjay Vitthal