FIELD: oil and gas industry.
SUBSTANCE: hydrophobic emulsion for the carbonate bed treatment includes, wt %: hydrocarbon solvent PR-10 12.5-15, a mixture of nonionic surfactants 2.5-2.6, aqueous solution of inhibited hydrochloric acid - the rest. The aqueous solution of inhibited hydrochloric acid contains an additive for the control of iron OSC HI-IRON in a ratio of 200:1.
EFFECT: increasing the treatment efficiency of the bottomhole zone of highly watered wells with a carbonate reservoir.
1 dwg, 2 tbl, 3 ex
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Authors
Dates
2017-05-29—Published
2016-02-24—Filed