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METHOD FOR INCREASING THE INJECTIVITY OF INJECTION HOLES IN OIL DELIVERY BY MEANS OF WATER FLOODS.
METHOD FOR INCREASING THE INJECTIVITY OF INJECTION HOLES IN OIL DELIVERY BY MEANS OF WATER FLOODS.
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机译:用注水手段增加输油孔的注入率的方法。
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摘要
The injectability of injection wells can be increased in oil extraction by means of water flooding, by injecting a solution, dispersion, or emulsion of carboxymethylated oxethylates of the formula R-O(C3H6O)m(C2H4O)nCH2COOM in formation water or flooding water and, optionally, crude oil, into the injection well, the tenside being selected so that the phase inversion temperature of the system of reservoir oil/formation water or flooding water/tenside/optional additives lies at least 12 DEG C. above the reservoir temperature.
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