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(19)

(11)

2 767 071

(13)

(51)

IPC

C08L9/02(2006-01-01)

C08L29/04(2006-01-01)

C08L29/06(2006-01-01)

C08L33/14(2006-01-01)

(21) (22)

Application

2021116648, 2021-06-09

(24)

Start date

2021-06-09

(22)

Actual filing date

2021-06-09

(45)

Published

2022-03-16

(72)

Inventor

Antipov Sergei PetrovichLebedev Artem MikhailovichMardanshin Karim MarselevichSharafetdinov Elvir AnisovichVolkova Larisa FaritovnaMukhtarov Aleksei Radikovich

(73)

Holder

Obshchestvo S Ogranichennoi Otvetstvennostiu Trubnyi Zavod"

RUBBER MIXTURE FOR MAKING WATER-SWELLING ARTICLES Russian patent published in 2022 - IPC C08L9/02 C08L29/04 C08L29/06 C08L33/14

Abstract RU 2767071 C1

FIELD: mining.

SUBSTANCE: invention can be used for isolation of formations and reduction of water content of oil and gas condensate wells. Disclosed is a water-swelling rubber mixture based on hydrogenated butadiene-nitrile rubber, polymer alcohols and spatially cross-linked polycondensation copolymers of polyatomic alcohols and acrylic acid. Mixture additionally contains process additives and a vulcanizing system.

EFFECT: high degree of swelling of articles made from the rubber mixture in highly mineralized media while maintaining swelling properties under low mineralization conditions with high resistance to oil products.

7 cl, 4 dwg, 4 tbl

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RU 2 767 071 C1

Authors

Antipov Sergei Petrovich

Lebedev Artem Mikhailovich

Mardanshin Karim Marselevich

Sharafetdinov Elvir Anisovich

Volkova Larisa Faritovna

Mukhtarov Aleksei Radikovich

Dates

2022-03-16—Published

2021-06-09—Filed