Patents by Inventor Timothy Ivan Mitchell

Timothy Ivan Mitchell 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).

  • Method of cementing an area of a borehole with aqueous cement spacer system
    Patent number: 7007754
    Abstract: A storable cement system comprises a suspending agent, a cement spacer and water. The composition may further optional contain a surfactant and/or an organic solvent and/or a weighting material. The suspending agent is preferably a carrageenan or scleroglucan. The cement system may be stored for an extended period of time prior to being interposed between a cement slurry and a drilling fluid. As such, the aqueous cement system may be made off-site and used when desired for preventing contact between non-compatible hydrocarbonaceous and aqueous fluids.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: March 7, 2006
    Assignee: BJ Services Company
    Inventors: Charles Joseph Fanguy, Jr., Jerry Patrick Sanchez, Timothy Ivan Mitchell
  • Aqueous storable cement spacer system and method of making and using the same
    Publication number: 20040238170
    Abstract: A storable cement system comprises a suspending agent, a cement spacer and water. The composition may further optional contain a surfactant and/or an organic solvent and/or a weighting material. The suspending agent is preferably a carrageenan or scleroglucan. The cement system may be stored for an extended period of time prior to being interposed between a cement slurry and a drilling fluid. As such, the aqueous cement system may be made off-site and used when desired for preventing contact between non-compatible hydrocarbonaceous and aqueous fluids.
    Type: Application
    Filed: May 30, 2003
    Publication date: December 2, 2004
    Applicant: BJ SERVICES COMPANY
    Inventors: Charles Joseph Fanguy, Jerry Patrick Sanchez, Timothy Ivan Mitchell