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A method to recover oil from an underground formation penetrated by at least one injection well and at least one Production Well
A method to recover oil from an underground formation penetrated by at least one injection well and at least one Production Well
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机译:一种从地下地层采油的方法,该地下地层被至少一个注入井和至少一个生产井所穿透
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摘要
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 salts of alkyl or alkylaryl sulfonates wherein the alkyl chain may have from five to 25 carbon atoms, plus sulfated oxyalkylated surfactants containing arylalkyl groups.
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