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2 127 358

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Application

96120426/03, 1996-10-03

(22)

Actual filing date

1996-10-03

(45)

Published

1999-03-10

(72)

Inventor

Almaev R.Kh.Bazekina L.V.Safonov E.N.Plotnikov I.G.Asmolovskij V.S.Paramonov S.V.Gabdrakhmanov A.G.

(73)

Holder

Aktsionernaja Neftjanaja Kompanija Bashneft'

METHOD FOR DEVELOPMENT OF OIL DEPOSIT BY FLOODING Russian patent published in 1999 - IPC

Abstract RU 2127358 C1

FIELD: oil production industry. SUBSTANCE: this can be used for increasing oil recovery from beds by regulation of permeability of water-flowing passages. According to method, injected are alkali solution of sludge-lignin and water solution of surface-active substance in following proportions: sludge-lignin - alkali solution - surface active substance: from 1:1:0.5 to 1:1:5. Delivery of water solution of surface-active substance is carried out simultaneously with or after injection of alkali solution of sludge-lignin. Application of aforesaid method leads to increased degree of displacing oil from low-permeable zones of bed. EFFECT: higher efficiency. 2 tbl, 2 ex

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RU 2 127 358 C1

Authors

Almaev R.Kh.

Bazekina L.V.

Safonov E.N.

Plotnikov I.G.

Asmolovskij V.S.

Paramonov S.V.

Gabdrakhmanov A.G.

Dates

1999-03-10—Published

1996-10-03—Filed

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