04966235 is referenced by 28 patents and cites 59 patents.

A process for recovering oil from a subterranean hydrocarbon-bearing reservoir having a hydrocarbon and penetrated by a wellbore. The process comprises injecting through the wellbore and into the subterranean hydrocarbon-bearing reservoir an emulsifying composition containing an aqueous phase and a minor amount of an emulsifying agent such that the emulsifying composition contacts at least a portion of the hydrocarbon to form an oil-in-aqueous phase emulsion within the subterranean hydrocarbon-bearing reservoir.

Title
In situ application of high temperature resistant surfactants to produce water continuous emulsions for improved crude recovery
Application Number
934683
Publication Number
4966235
Application Date
January 31, 1989
Publication Date
October 30, 1990
Inventor
Daniel P Rimmer
Broken Arrow
OK, US
John A Hamshar
Owasso
OK, US
Andrew M Olah
Spencer
OH, US
Armand A Gregoli
Tulsa
OK, US
Agent
John Wade Carpenter
Assignee
Canadian Occidental Petroleum
CA
IPC
E21B 43/34
E21B 43/24
E21B 43/22
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