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2 316 574

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C1

(51)

IPC

C09K8/508(2006-01-01)

(21) (22)

Application

2006122045/03, 2006-06-22

(24)

Start date

2006-06-22

(22)

Actual filing date

2006-06-22

(45)

Published

2008-02-10

(72)

Inventor

Romantsev Mikhail FedorovichMejntser Valerij Ottovich

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Innovatsionnaja Toplivno-Ehnergeticheskaja Kompanija"

FORMATION WATER INFLOW SHUTOFF COMPOSITION Russian patent published in 2008 - IPC C09K8/508 

Abstract RU 2316574 C1

FIELD: oil and gas production.

SUBSTANCE: object of invention is to limit water inflow in injection well to increase oil recovery of formations. Composition according to invention containing clay (0.1-0.6%), biopolymer (0.1-0.25%), and water further contains 0.2-0.5% of polyacrylamide modified by a radiation-chemical method, said biopolymer being xanthan gum produced by bacterium strains Xanthomo and Campestrin in a hydrocarbon medium.

EFFECT: improved quality of grouting composition and achieved high grouting characteristics.

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RU 2 316 574 C1

Authors

Romantsev Mikhail Fedorovich

Mejntser Valerij Ottovich

Dates

2008-02-10—Published

2006-06-22—Filed

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