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Flournoy Kenoth H, Cardenas Ricardo L, Haferkamp Gilbert L, Shupe Russell D: Surfactant oil recovery process usable in formations containing water having high concentrations of polyvalent ions such as calcium and magnesium. Texaco, Whaley T H, Reis C G, May 21, 1974: US3811505 (87 worldwide citation)

A dual surfactant system usable in the presence of from about 500 to about 9,000 parts per million polyvalent ions, such as calcium and/or magnesium, and a method of using said surfactant system for recovering petroleum from subterranean formations, said surfactant system comprising a water soluble ...


2
Flournoy Kenoth H, Cardenas Ricardo L, Haferkamp Gilbert L, Shupe Russell D: Surfactant oil recovery process usable in formations containing water having high concentrations of polyvalent ions such as calcium and magnesium. Texaco, Whaley T H, Reis C G, May 21, 1974: US3811504 (75 worldwide citation)

A three component surfactant system usable in the presence of from about 1,500 to about 12,000 parts per million polyvalent ions, such as calcium and/or magnesium, and a method of using said surfactant system for recovering petroleum from subterranean formations, said surfactant system comprising a ...


3
Flournoy Kenoth H, Shupe Russell D: Surfactant oil recovery process usable in formations containing water having high concentration of polyvalent ions such as calcium and magnesium. Texaco, Whaley T H, Reis C G, May 21, 1974: US3811507 (44 worldwide citation)

A two component surfactant system usable in the presence of from about 3,000 to about 18,000 parts per million polyvalent ions, including calcium and or magnesium, and a method of using said dual surfactant system for recovering petroleum from subterranean formations, said surfactant system comprisi ...


4
Flournoy Kenoth H, Maddox Jr Jim, Tate Jack F: Oil recovery process usable in formations containing water having high concentrations of polyvalent ions. Texaco, Whaley T H, Ries C G, January 7, 1975: US3858656 (36 worldwide citation)

A dual surfactant system usable in the presence of from about 200 to about 18,000 parts per million polyvalent ions, such as calcium and/or magnesium, and a method of using said surfactant system for recovering petroleum from subterranean formations, said surfactant system comprising water soluble s ...


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Carlin Joseph T, Flournoy Kenoth H, Cardenas Ricardo L: Surfactant oil recovery process. Texaco, March 12, 1974: US3796266 (15 worldwide citation)

An aqueous solution comprising an alkalinity agent such as sodium hydroxide, a water soluble guanidine salt such as guanidine hydrochloride and an anionic surfactant such as an aliphatic sulfate, specifically dodecyl sulfate or cetyl sulfate, or a water soluble salt of an unsaturated aliphatic monob ...


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Cardenas Ricardo L, Carlin Joseph T, Flournoy Kenoth H: Surfactant oil recovery process for use in formations containing high concentrations of polyvalent ions such as calcium or magnesium. Texaco, Whaley T H, Ries C G, March 26, 1974: US3799264 (14 worldwide citation)

A surfactant composition usable in the presence of from about 500 to about 5,000 parts per million polyvalent ion concentrations, such as calcium and/or magnesium, comprising a sulfated aliphatic anionic surfactant such as sodium tridecyl sulfate, a water soluble guanidine salt such as guanidine hyd ...


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Flournoy Kenoth H, Carlin Joseph T, Cardenas Ricardo L: Surfactant oil recovery process. Texaco, Whaley T H, Ries C G, Park Jack H, October 28, 1975: US3915230 (11 worldwide citation)

The efficiency of an oil recovery process of the type wherein an aqueous surfactant solution is injected into a subterranean, petroleum-containing formation is increased by determining the optimum range of salinity and hardness, e.g. calcium and magnesium, for the particular surfactant being used, a ...


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Flournoy Kenoth H, Cardenas Ricardo L, Carlin Joseph T: Pipeline pour le transport dhydrocarbures visqueux, Pipeline method for transporting viscous hydrocarbons. Texaco Development Corporation, SMART & BIGGAR, January 27, 1981: CA1094309

ABSTRACT OF THE DISCLOSURE A method for transporting viscous hydrocarbonswhich involves introducing into a pipeline or well-borewith the viscous hydrocarbons a solution containing (1)an anionic surfactant such as sodium tridecyl sulfate,sodium oleate, etc., or an oxyalkylated anionic surfactantof th ...


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Flournoy Kenoth H, Tate Jack F, Maddox Jim: Methode dextraction du petrole dans des formations sous eau a fortes concentrations dions polyvalents, Oil recovery process usable in formations containing water having high concentrations of polyvalent ions. Texaco Development Corporation, December 5, 1978: CA1043550

ABSTRACT OF THE DISCLOSURE A dual surfactant system usable in the presenceof from about 200 to about 18,000 parts per millionpolyvalent ions, such as calcium and/or magnesium, anda method of using said surfactant system for recoveringpetroleum from subterranean formations, said surfactantsystem comp ...