FIELD: oil and gas production. SUBSTANCE: method includes injection into bottom-hole formation zone of freshly prepared water-retaining composition. Prior to injection of the composition, additionally injected is aqueous solution containing polymer of acrylic series and mud powder in the following ratio of components, mas.%: polymer of acrylic series, 0.03-0.5; bentonite mud powder, 1.0-10.0; water, the balance. EFFECT: higher efficiency of water shutoff by increased stability and strength of produced water shutoff barrier. 1 tbl
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Authors
Dates
2000-02-10—Published
1998-10-12—Filed