| 摘要 |
<p>Use of foams generated from an aqueous fluid, at least one gas and at least one surfactant in the production of oil and/or gas from subterranean formations. The surfactants are selected from the group of alkyl betains, alkyl N-oxides, amphoteric surfactants, anionically modified alkyl ethers, alkyl or alkenyl polyglucosides, modified alkyl or alkenyl polyglucosides and alkyl sulfates. The foams may be used for enhanced oil recovery.</p> |
