E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
31/16
E21B 43/22 (2006.01) C09K 8/584 (2006.01)
Patent
CA 2009732
HOE 89/F 900 Abstract of the disclosure A process for stimulating oil and gas wells in oil and gas production from subterranean formations, and stimulant for this purpose In the process described, the oil/gas-containing sub- terranean formations are contacted with a selected fluorosurfactant as a stimulant. A particularly pre- ferred stimulant is composed essentially of the said fluorosurfactants and of non-fluorinated nonionic sur- factants from the group comprising the alkoxypolyethylene glycol ethers and from the group comprising the alkyl- phenoxypolyethylene glycol ethers, the three components being present in a weight ratio of preferably about 1 : 1 : 1.
Bathelt Heinrich
Fischer Reinhard
Schneider Gerhart
Bathelt Heinrich
Fetherstonhaugh & Co.
Fischer Reinhard
Hoechst Aktiengesellschaft
Schneider Gerhart
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