1
Russell D Shupe, Jim Maddox Jr: Surfactant oil recovery process usable in high temperature, high salinity formations. Texaco, Carl G Ries, Thomas H Whaley, Jack H Park, March 7, 1978: US04077471 (168 worldwide citation)

Many petroleum formations contain water having high salinity and/or high concentrations of divalent ions such as calcium or magnesium dissolved therein, and are additionally at temperature from about 70.degree. F. to about 300.degree. F. Most surfactants suitable for use in oil recovery operations a ...


2
Jim Maddox Jr, Jack F Tate: Surfactant oil recovery process usable in high temperature formations containing water having high concentrations of polyvalent ions. Texaco, T H Whaley, C G Ries, Jack H Park, February 24, 1976: US03939911 (42 worldwide citation)

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 p ...


3
Jim Maddox Jr, Jack F Tate: Surfactant oil recovery process usable in high temperature formations having high concentrations of polyvalent ions. Texaco, T H Whaley, C G Ries, Jack H Park, February 15, 1977: US04008165 (25 worldwide citation)

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 p ...


4
Russell D Shupe, Jim Maddox Jr: Emulsion oil recovery process usable in high temperature, high salinity formations. Texaco, Carl G Ries, Thomas H Whaley, Jack H Park, May 26, 1981: US04269271 (15 worldwide citation)

Many petroleum formations contain water having high salinity and/or high concentrations of divalent ions such as calcium or magnesium dissolved therein, and are additionally at temperatures from about 70.degree. F. to about 300.degree. F. Most surfactants suitable for use in oil recovery operations ...


5
Jack F Tate, Jim Maddox Jr: Oil recovery process usable in high temperature formations containing high salinity water which may include high concentrations of polyvalent ions. Texaco, Carl G Ries, Thomas H Whaley, Jack H Park, June 13, 1978: US04094798 (12 worldwide citation)

A fluid containing a dual surfactant system and a process using the fluid for recovering petroleum from petroleum formations containing high salinity water, e.g. from 50,000 to 225,000 parts per million which may include from about 200 to about 14,000 parts per million polyvalent ions such as calciu ...


6
Jim Maddox Jr, Vernon H Schievelbein: Method of extracting and reutilizing surfactants from emulsions using sulfonated alkyl benzenes and ethoxylated phenols. Texaco, Jack H Park, Kenneth R Priem, Harold J Delhommer, May 21, 1985: US04518038 (11 worldwide citation)

The disclosed invention is a one step or two step process for extracting surfactant from produced emulsions of oil, water and surfactants, concentrating the surfactants into a relatively small volume emulsion middle phase that can be reutilized in surfactant flooding and separating substantial quant ...


7
Jim Maddox Jr: Method of extracting and reutilizing surfactants from emulsions with sulfonated alkyl benzenes and alcohols. Texaco, Jack H Park, Kenneth R Priem, Harold J Delhommer, May 14, 1985: US04516635 (6 worldwide citation)

Disclosed is a method for extracting surfactants from produced emulsions of oil, water and surfactant and concentrating the surfactants into a relatively small volume, surfactant-rich, middle phase that can be reutilized in surfactant flooding. A first extraction is performed with an aqueous solutio ...


8
Jack F Tate, Jim Maddox Jr: Method for controlling scale. Texaco, T H Whaley, C G Ries, James F Young, April 20, 1976: US03951793 (6 worldwide citation)

Composition and method for the treatment of scale, particularly calcium and/or barium sulfate scale, using a treating composition consisting of about one part by weight of a sulfated/sulfonated polyethoxy alkyl phenol containing from about 8 to about 14 carbon atoms in the alkyl group and from about ...


9
Ricardo L Cardenas, Bobby G Harnsberger, Jim Maddox Jr: Emulsion oil recovery process usable in high temperature, high salinity formations. Texaco, Thomas H Whaley, Carl G Ries, Jack H Park, June 2, 1981: US04270607 (6 worldwide citation)

Many petroleum formations contain water having high salinity and/or high concentrations of divalent ions such as calcium or magnesium dissolved therein, and are additionally at temperature from about 70.degree. F. to about 300.degree. F. Most surfactants and polymers suitable for use in fluids or em ...


10
Jim Maddox Jr: Method of extracting and reutilizing surfactants from emulsions. Texaco, Robert A Kulason, Jack H Park, Harold J Delhommer, April 30, 1985: US04513820 (5 worldwide citation)

An invention for extracting surfactants from produced emulsions of oil, water and surfactant and concentrating the surfactants into a relatively small volume, emulsion phase that can be reutilized in surfactant flooding. The two phases left behind in the extraction are a substantially water-free and ...