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2 070 282

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Application

5028013/03, 1992-02-21

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Actual filing date

1992-02-21

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Published

1996-12-10

(72)

Inventor

Musin M.M.Muslimov R.Kh.Fomichev A.V.Akhmetzjanov R.Kh.

(73)

Holder

Tatarskij Nauchno-Issledovatel'Skij I Proektnyj Institut Neftjanoj Promyshlennosti

METHOD FOR DEVELOPMENT OF OIL FORMATION Russian patent published in 1996 - IPC

Abstract RU 2070282 C1

FIELD: oil producing industry, particular, methods for increasing the oil recovery from nonuniform formations; applicable in displacement of low-active oils. SUBSTANCE: method for development of oil formation includes, first, injection into formation of low-active oil of fringe of mixture of alkali with surfactant of preliminarily determined optimal concentration. Well is stopped for a definite time sufficient enough to produce the maximum value of oil displacement efficiency, attained during the process of capillary impregnation, and, then, polymer is injected with changing over to usual flooding. EFFECT: higher efficiency of oil displacement process. 1 cl, 2 dwg, 1 tbl

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RU 2 070 282 C1

Authors

Musin M.M.

Muslimov R.Kh.

Fomichev A.V.

Akhmetzjanov R.Kh.

Dates

1996-12-10—Published

1992-02-21—Filed

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