Patents Represented by Attorney Hummel Jack L.

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  • Brine tolerant polymer and oil recovery applications
    Patent number: 4795784
    Abstract: A beta-alanine-type branched partially hydrolyzed polyacrylamide is added to an aqueous injection fluid to increase the viscosity of the fluid. The polymer resists plugging of the wellbore face and/or matrix pores and is brine tolerant when injected into a subterranean hydrocarbon-bearing formation.
    Type: Grant
    Filed: September 2, 1987
    Date of Patent: January 3, 1989
    Assignee: Marathon Oil Company
    Inventor: James E. Tackett