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2 143 548

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IPC

(21) (22)

Application

96117169/03, 1996-08-20

(24)

Start date

1996-08-20

(22)

Actual filing date

1996-08-20

(45)

Published

1999-12-27

(72)

Inventor

Murashkin B.G.Rubinshtejn O.I.Zhuravlev V.S.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Kompanija Pyt'Jakhnefteotdacha"Zhuravlev Viktor SergeevichMurashkin Boris Grigor'EvichRubinshtejn Oleg Idelevich

METHOD OF DEVELOPMENT OF NONUNIFORM WATER- ENCROACHED OIL FORMATIONS Russian patent published in 1999 - IPC

Abstract RU 2143548 C1

FIELD: oil recovery. SUBSTANCE: method includes injection into formation of aqueous suspension of dispersed particles-plastic filler and clay suspension. Suspensions may be injected simultaneously and with additives ensuring swelling of plastic filler and/or clay, or for instance, 1-5% soda. EFFECT: increased oil recovery of producing formations at the secondary stage of operation of oil deposits due to increased reliability of isolation of water-encroached interbeds of various permeability. 3 cl, 2 tbl

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RU 2 143 548 C1

Authors

Murashkin B.G.

Rubinshtejn O.I.

Zhuravlev V.S.

Dates

1999-12-27—Published

1996-08-20—Filed