Jack Franklin Tate, 889011 Gaylord Dr APT 43, Houston, TX 77024

3979315, Sep 7, 1976

Dec 20, 1974

5/534960

Jack F. Tate - Houston TX
Russell D. Shupe - Houston TX
Jim Maddox - Houston TX

Texaco Inc. - New York NY

C02B 506

252180

Composition and method for the treatment of inorganic mineral scale, particularly calcium and/or barium sulfate scale, using a treating composition consisting of a water-soluble sulfonated ethoxylated alkylphenol of prescribed formula in an amount of from about 0. 0005 to about 0. 005%, on a weight basis.

4206058, Jun 3, 1980

Feb 13, 1978

5/877136

Jack F. Tate - Houston TX

Texaco Inc. - White Plains NY

E21B 4327

252 855C

The production of hydrocarbons from a subterranean hydrocarbon-bearing formation containing acid-soluble components, such as one composed at least in part of dolomite or limestone, is stimulated by injecting into the formation a composition comprising an aqueous solution of a mineral acid having dissolved therein an oxyalkylated acrylamido alkanesulfonic acid polymer. The increase in the permeability and porosity of the formation achieved utilizing the method of invention results in a substantial improvement in hydrocarbon recovery.

4200154, Apr 29, 1980

Feb 13, 1978

5/877135

Jack F. Tate - Houston TX

Texaco Inc. - White Plains NY

E21B 4327

166307

The production of hydrocarbons from a subterranean hydrocarbon-bearing formation containing acid-soluble components, such as one containing clays or siliceous minerals as exemplified by sandstone, shale, etc. is stimulated by injecting into the formation a composition comprising an aqueous solution of a mineral acid and a fluorine-containing acid or salt and having dissolved therein an oxyalkylated acrylamido alkanesulfonic acid polymer. The indepth increase in the permeability and porosity of the formation achieved utilizing the method of invention results in a substantial improvement in hydrocarbon recovery.

4008165, Feb 15, 1977

Jul 7, 1975

5/593394

Jim Maddox - Houston TX
Jack F. Tate - Houston TX

Texaco Inc. - New York NY

252
E21B 4322

252 855D

A three surfactant system usable in high temperature petroleum formations containing water having from about 200 to about 14,000 parts per million polyvalent ions such as calcium and/or magnesium dissolved therein and a pH of from 5 to 9, and a method of using said surfactant system for recovering petroleum from high temperature subterranean petroleum-containing formations. The three component surfactant system comprises (1) water-soluble salt of an alkyl or alkylaryl sulfonate wherein the alkyl chain may have from 5 to 25 carbon atoms, (2) a phosphate ester surfactant with an average molecular weight not to exceed 1000, and (3) a surfactant having the following betaine related structure: ##STR1## wherein R is an alkyl group having from 12 to 24 carbon atoms, and n is an integer from one to five. The surfactant combination is stable up to at least 225. degree. F and resistant to bacterial attack and inhibits scale formation.

3968840, Jul 13, 1976

May 25, 1973

5/363934

Jack F. Tate - Houston TX

Texaco Inc. - New York NY

E21B 4326

166280

A process is provided whereby a subterranean formation may be treated uniformly with acid at a controlled rate to a considerable distance from an injection point. The process includes an introduction of an acid which is solid but will slowly solubilize in water or brine in a subterranean formation. The introduction of the solid acid may take place via fracture fissures in the formation and also if desired in conjunction with a propping agent.

3988253, Oct 26, 1976

Dec 20, 1974

5/534955

Jack F. Tate - Houston TX

Texaco Inc. - New York NY

C02B 506

252 82

Composition and method for the treatment of inorganic mineral scale, using a treating composition consisting of a water soluble substituted taurine of prescribed formula in an amount of from 0. 0005% to about 0. 005%, on a weight basis.

4277580, Jul 7, 1981

Oct 15, 1979

6/084698

Joseph C. Allen - Bellaire TX
Jack F. Tate - Houston TX

Texaco Inc. - White Plains NY

C08F 800
C08F22610

525383

The production of hydrocarbons from a subterranean hydrocarbon-bearing formation containing acid-soluble components, such as one composed at least in part of dolomite or limestone, is stimulated by injecting into the formation usually via casing and cement pack perforations a composition comprising an aqueous solution of a mineral acid having dissolved therein a small amount of a vinylpyrrolidone polymer or an alkoxylated vinylpyrrolidone polymer. The increase in the permeability and porosity of the formation achieved utilizing the method of invention results in a substantial improvement in hydrocarbon recovery. Optionally, the injected composition may be saturated with natural gas at the injection pressure. In another embodiment this invention relates to the oxyalkylated vinylpyrrolidone polymer compositions.

3962110, Jun 8, 1976

Oct 4, 1974

5/511973

Jack F. Tate - Houston TX

Texaco Inc. - New York NY

C02B 502
C02B 506

252181

A process and composition for the treatment of oil and gas wells to prevent and/or inhibit the build-up of an undesirable inorganic mineral scale deposits in which an aqueous solution of a vinylpyrrolidone polymer is employed in an amount sufficient to prevent and/or inhibit the development of such scale.