METHOD OF SHUTOFF OF WATER INFLOWS Russian patent published in 2000 - IPC

Abstract RU 2158352 C1

FIELD: oil and gas producing industry. SUBSTANCE: method includes injection into formation of 5-10% aqueous solution of water glass with silica modulus of 1.3-3.5 with subsequent injection of isolating gel-forming water glass titrated with acid up to pH 9.1-11.4 and volume ratio of said successively injected solutions of water glass of 0.01-0.25. EFFECT: reduced well shutdown period. 1 tbl

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RU 2 158 352 C1

Authors

Zamaev I.A.

Zamaev Kh.A.

Dates

2000-10-27—Published

1999-10-05—Filed