Patents by Inventor Karen H. Carney

Karen H. Carney 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 processes for treating hydrocarbon-bearing formations
    Patent number: 5789350
    Abstract: A gelling composition comprises a multivalent metal compound-crosslinkable polymer such as a carboxylate-containing polymer, a multivalent metal compound such as a zirconium compound, a liquid, and a pH-lowering agent such as carbon dioxide wherein the composition is prepared by combining the polymer and multivalent metal compound to form a mixture and, thereafter, introducing carbon dioxide to the mixture. A process for treating a subterranean formation can comprise the steps of: (1) combining a polymer with a multivalent compound to form a mixture; (2) introducing the another mixture into a subterranean formation; and (3) introducing carbon dioxide into the mixture.
    Type: Grant
    Filed: February 12, 1996
    Date of Patent: August 4, 1998
    Assignee: Phillips Petroleum Company
    Inventors: Ahmad Moradi-Araghi, Iqbal Ahmed, Karen H. Carney
  • Process for treating oil-bearing formation
    Patent number: 5423380
    Abstract: A process for treating a subterranean formation comprises adding a crosslinking agent intermittently to a stream of gellable polymer wherein the gellable polymer forms a gel in the formation, in the presence of the crosslinking agent.
    Type: Grant
    Filed: February 22, 1994
    Date of Patent: June 13, 1995
    Assignee: Phillips Petroleum Company
    Inventors: Everett L. Johnston, Ahmad Moradi-Araghi, Karen H. Carney