Patents Represented by Attorney Huggett C. A.

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  • Waterflooding process employing cationic-nonionic copolymers
    Patent number: 4110232
    Abstract: This specification discloses a waterflooding process for producing oil from an oil-containing subterranean formation penetrated by an injection well and a production well. An aqueous solution of a copolymer formed of hydrophobic olefinic segments and cationic aromatic hydrophilic segments is injected into and driven through the formation in the production of oil therefrom.
    Type: Grant
    Filed: April 15, 1977
    Date of Patent: August 29, 1978
    Assignee: Mobil Oil Corporation
    Inventors: Frederick C. Schwab, Edward W. Sheppard, Catherine S. H. Chen