Patents by Inventor Alice M. Phillips

Alice M. Phillips 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).

  • Patent number: 5002125
    Abstract: Hydraulic fracturing process in which a normally gaseous energizing phase is incorporated into an aqueous fracturing fluid in a manner to effect good dissemination and stabilization of the energizing phase in the fracturing liquid. A normally gaseous energizing phase is incorporated into an aqueous fracturing fluid having a viscosity at wellhead conditions within the range of 10-300 centipoises. The fracturing fluid containing the energizing phase is introduced into the well and displaced from the wellhead down the well to the vicinity of the subterranean formation. During the displacement of the fracturing fluid from the wellhead to the vicinity of the formation, the viscosity of the fracturing fluid is increased by a factor about 2 or more. The higher viscosity fracturing fluid is displaced from the well into the formation in the course of the fracturing process. The energizing phase is provided by incorporating a substantial amount of liquid carbon dioxide into the aqueous fracturing fluid.
    Type: Grant
    Filed: August 2, 1989
    Date of Patent: March 26, 1991
    Assignee: The Western Company of North America
    Inventors: Alice M. Phillips, David J. Mack