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Application

2002119970/03, 2002-07-22

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Start date

2002-07-22

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Actual filing date

2002-07-22

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Published

2003-11-27

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Inventor

Galimov I.M.Cherepanova N.A.Sergienko V.N.Makeev G.A.Vjatchinin M.G.Ramazanov R.G.Mavrin M.Ja.Lejfrid A.V.Sadykov M.R.

(73)

Holder

Obshchestvo S Ogranichennoj Otvetstvennost'Ju Sibir'"

PROCESS OF DEVELOPMENT OF FLOODED OIL DEPOSIT Russian patent published in 2003 - IPC

Abstract RU 2217583 C1

FIELD: oil production, extraction of oil from inhomogeneous formations at latest stage of development of oil deposit. SUBSTANCE: process of development of flooded oil deposit includes successive pumping of fringes of aqueous solution of reagent containing sodium salts of organic acids and aqueous solution of salt of polyvalent metal into formation through injection well. Saponified wood resin with 0.5-1.0 proportion of saponified wood resin and salt of polyvalent metal with water buffer between fringes is utilized in the capacity of above-mentioned reagent. Water soluble salt of aluminum, calcium, iron, chromium is employed as mentioned salt. EFFECT: increased oil output of formation due to equalization of permeable inhomogeneity of formations and intensification of oil-saturated formations. 1 cl, 3 tbl

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RU 2 217 583 C1

Authors

Galimov I.M.

Cherepanova N.A.

Sergienko V.N.

Makeev G.A.

Vjatchinin M.G.

Ramazanov R.G.

Mavrin M.Ja.

Lejfrid A.V.

Sadykov M.R.

Dates

2003-11-27—Published

2002-07-22—Filed

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