Patents by Inventor Curtis C. Blair

Curtis C. Blair 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).

  • Gelling agent for hydrocarbon liquid and method of use
    Patent number: 5990053
    Abstract: A gelling agent for viscosifying liquid hydrocarbon fracturing fluids is an aluminum salt of a phosphate ester made by forming the ester by reacting P.sub.2 O.sub.5 with a mixture of organic alcohols which include high molecular weight alcohols or diols selected from hydroxy functional homopolymers, copolymer or terpolymer made from olefins and diolefins selected from the group consisting of ethylene, propylene, butene, butadiene, isoprene, and selected styrenes. The oil based fracturing fluid containing the gelling agent in sufficient concentration to provide a viscosity of between 50 cp and 350 cp at 100.degree. F.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: November 23, 1999
    Assignee: Nalco/Exxon Energy Chemicals, L.P.
    Inventors: Cruise K. Jones, Dennis A. Williams, Curtis C. Blair