Patents by Inventor Mitch Rice

Mitch Rice 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).

  • Compositions and methods for well completions
    Patent number: 8689871
    Abstract: Expansive cements for use in cementing subterranean wells contain an encapsulated gas-generating substance. The gas-generating substance comprises one or more materials that release hydrogen, nitrogen or both. The gas-generating substance is encapsulated by a coating comprising a polymer. The coating prevents premature gas release at the surface during slurry mixing, and promotes gas release at a desired location in the subterranean well. The released gas may also control the internal pore pressure of the cement slurry, thereby inhibiting the invasion of formation fluids into the borehole.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: April 8, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Deepak Khatri, Mitch Rice, Nikole Strickler, Robert Williams
  • COMPOSITIONS AND METHODS FOR WELL COMPLETIONS
    Publication number: 20120175118
    Abstract: Expansive cements for use in cementing subterranean wells contain an encapsulated gas-generating substance. The gas-generating substance comprises one or more materials that release hydrogen, nitrogen or both. The gas-generating substance is encapsulated by a coating comprising a polymer. The coating prevents premature gas release at the surface during slurry mixing, and promotes gas release at a desired location in the subterranean well. The released gas may also control the internal pore pressure of the cement slurry, thereby inhibiting the invasion of formation fluids into the borehole.
    Type: Application
    Filed: October 14, 2011
    Publication date: July 12, 2012
    Inventors: Deepak Khatri, Mitch Rice, Nikole Strickler, Robert Williams