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(19)

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2 499 020

(13)

(51)

IPC

C09K8/506(2006-01-01)

E21B33/138(2006-01-01)

(21) (22)

Application

2012108869/03, 2012-03-07

(24)

Start date

2012-03-07

(22)

Actual filing date

2012-03-07

(45)

Published

2013-11-20

(72)

Inventor

Skorodievskij Vadim GennadievichSkorodievskaja Ljudmila AleksandrovnaBratusev Sergej AleksandrovichBratuseva Vlasta Viktorovna

(73)

Holder

Obshchestvo S Ogranichennoj Otvetstvennost'JuObshchestvo S Ogranichennoj Otvetstvennost'Ju Tsentr"

COMPOSITION FOR ISOLATION OF BEHIND-CASING FLOWS AND BED HIGH-PERMEABILITY ZONES Russian patent published in 2013 - IPC C09K8/506 E21B33/138

Abstract RU 2499020 C1

FIELD: oil-and-gas industry.

SUBSTANCE: proposed composition comprises 100 wt % of silicic acid ethyl or methyl ether or mixes thereof, 15-50 wt % of polar solvent, 1-3 wt % of chlorides of IV-VIII group metals, and additive representing polypropylene in amount of 0.1-0.5 wt %.

EFFECT: controlled solidification time, shorter fluidity loss time, higher efficiency of isolation and plugging-back.

1 tbl

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RU 2 499 020 C1

Authors

Skorodievskij Vadim Gennadievich

Skorodievskaja Ljudmila Aleksandrovna

Bratusev Sergej Aleksandrovich

Bratuseva Vlasta Viktorovna

Dates

2013-11-20—Published

2012-03-07—Filed