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2 158 360

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Application

99102887/13, 1999-02-10

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Start date

1999-02-10

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Actual filing date

1999-02-10

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Published

2000-10-27

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Inventor

Julbarisov Eh.M.Timerkhanov N.Sh.Ladin P.A.Zhdanova N.V.Sadykov U.N.Khabibrakhmanov F.M.

(73)

Holder

Oao Aktsionernaja Neftjanaja Kompanija Bashneft'

METHOD OF DEVELOPMENT OF OIL FORMATION Russian patent published in 2000 - IPC

Abstract RU 2158360 C1

FIELD: oil-producing industry; applicable in development of oil deposits with high rate of water encroachment. SUBSTANCE: method includes alternation of pressure increase and decrease of injected water. During period of high pressure, injected into injection well is activated sludge in form of mixture of nutrient substances and microorganisms with addition of biostimulators. Method is especially efficient in development of oil pool with nonuniform reservoir. EFFECT: increased oil recovery due to increased coverage of formation by flooding and selective plugging of formation zones weakly involved in development operations.

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RU 2 158 360 C1

Authors

Julbarisov Eh.M.

Timerkhanov N.Sh.

Ladin P.A.

Zhdanova N.V.

Sadykov U.N.

Khabibrakhmanov F.M.

Dates

2000-10-27—Published

1999-02-10—Filed

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