METHOD FOR ISOLATING PENETRABLE BEDS IN A WELL Russian patent published in 2005 - IPC

Abstract RU 2244803 C2

FIELD: oil and gas chambers construction.

SUBSTANCE: method includes pumping of portion of water-absorbing acryl polymer, exposure of it in a well, pumping of second portion of same polymer, tempered on fresh water with concentration 1-20%, buffer of fresh water dries up, and before and after pumping of second portion of water-absorbing polymer, tempered on hydrocarbon liquid with concentration 10-20%, buffer of hydrocarbon liquid is pumped in, besides, said 2-portion systems are pumped into well multiple times.

EFFECT: higher efficiency.

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RU 2 244 803 C2

Authors

Kurochkin B.M.

Khannanov S.N.

Starov V.A.

Kashapov S.A.

Starov O.E.

Dates

2005-01-20—Published

2002-12-20—Filed