FIELD: oil and gas production.
SUBSTANCE: invention refers to oil industry, particularly to a method for isolation of water production to production wells. In the method for isolation of water production to the producing oil wells, including injection of a gelling compound prepared by mixing polyacrylamide, carbamide, aluminium salt and water, said aluminium salt is solid aluminium pentahydroxychloride S-APHC containing low-molecular electrolyte - magnesium chloride, and when mixing, APHC and carbamide in the ratio 1:0.5 to 1:4 are mixed with 0.3% aqueous polyacrylamide - PAA taken in amount 0.35-0.5 wt %.
EFFECT: higher nonuniform reservoir recovery.
3 ex, 3 tbl, 2 dwg
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Authors
Dates
2010-08-10—Published
2009-07-27—Filed