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2 164 594

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IPC

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Application

99109550/03, 1999-04-27

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Start date

1999-04-27

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Actual filing date

1999-04-27

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Published

2001-03-27

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Inventor

Kurochkin B.M.Shchepkina N.E.Nurmukhametov R.S.Galimov R.Kh.Khisamov R.S.Sulejmanov Eh.I.Kandaurova G.F.Khasanov Ja.Z.Dobroskok B.E.Kubareva N.N.

(73)

Holder

Oao Npo Tekhnika"Zao Geotekh

PROCESS OF EXPLOITATION OF INHOMOGENEOUS OIL POOL Russian patent published in 2001 - IPC

Abstract RU 2164594 C2

FIELD: oil industry. SUBSTANCE: invention refers to recovery of oil from inhomogeneous pool with use of focus or beyond outline water flooding. Portions of polymers swelling in fresh and mineralized water injected in sequence are used in the capacity of aqueous solution of polymer. Buffer composed of fresh water with alkali is pumped between portions. Polymers in each portion are presented by two kinds of polymers as minimum. Time of swelling to maximum size of each next kind of polymer exceeds time of swelling to maximum size of each preceding kind of polymer. EFFECT: increased recovery of oil from pool thanks to enlargement of its scope. 3 dwg, 1 tbl

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RU 2 164 594 C2

Authors

Kurochkin B.M.

Shchepkina N.E.

Nurmukhametov R.S.

Galimov R.Kh.

Khisamov R.S.

Sulejmanov Eh.I.

Kandaurova G.F.

Khasanov Ja.Z.

Dobroskok B.E.

Kubareva N.N.

Dates

2001-03-27—Published

1999-04-27—Filed

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