Inventor
CARDENAS RICARDO L
US8 patents
Patents
8 patentsUS3943954AMar 16, 1976
Pipeline transportation of viscous hydrocarbons
TEXACO INC48 citations92
US4152290AMay 1, 1979
Solution for transporting hydrocarbons in a pipeline
TEXACO INC17 citations81
US4108193AAug 22, 1978
Pipeline method for transporting viscous hydrocarbons
TEXACO INC29 citations81
US4733724AMar 29, 1988
Viscous oil recovery method
TEXACO INC21 citations80
US4270607AJun 2, 1981
Emulsion oil recovery process usable in high temperature, high salinity formations
TEXACO INC10 citations73
US4162989AJul 31, 1979
Oil-in-water emulsion
TEXACO INC11 citations73
US3941192AMar 2, 1976
Method for recovering high asphaltene content petroleum using surfactants
TEXACO INC9 citations72
US4213500AJul 22, 1980
Oil recovery process: injection of fatty alcohol followed by soap
TEXACO INC4 citations61