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(19)

(11)

2 654 029

(13)

(51)

IPC

C08L9/02(2006-01-01)

E21B33/12(2006-01-01)

C08L33/26(2006-01-01)

C08K3/04(2006-01-01)

C08K3/06(2006-01-01)

C08K3/22(2006-01-01)

C08K5/47(2006-01-01)

(21) (22)

Application

2017122102, 2017-06-22

(24)

Start date

2017-06-22

(22)

Actual filing date

2017-06-22

(45)

Published

2018-05-15

(72)

Inventor

Kablov Viktor FedorovichKejbal Natalya AleksandrovnaKrekaleva Tamara ViktorovnaSitnikov Evgenij EvgenevichShaporov Evgenij ViktorovichKutsov Aleksandr Nikolaevich

(73)

Holder

Federalnoe Gosudarstvennoe Byudzhetnoe Obrazovatelnoe Uchrezhdenie Vysshego Obrazovaniya Gosudarstvennyj Tekhnicheskij Universitet"

WATER SWELLING RUBBER MIXTURE FOR PACKER EQUIPMENT Russian patent published in 2018 - IPC C08L9/02 E21B33/12 C08L33/26 C08K3/04 C08K3/06 C08K3/22 C08K5/47

Abstract RU 2654029 C1

FIELD: chemistry.

SUBSTANCE: invention relates to water- and oil-swelling rubbers based on butadiene-nitrile rubbers, which can be used in packers and other downhole equipment. Water-bubble rubber mixture for packer equipment based on butadiene-nitrile rubber contains, in parts by weight: rubber NBR-28 100.0, sulfur 1.5, Altax 1.5, zinc oxide 5.0, stearin 2.0, technical carbon P-234 50.0, asbestos fibers 10.0–15.0, cross-linked polyacrylamide POLYSWELL 70.0–150.0.

EFFECT: invention makes it possible to increase the ability to swell in concentrated brine and drilling fluids while maintaining the strength characteristics.

1 cl, 2 tbl

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RU 2 654 029 C1

Authors

Kablov Viktor Fedorovich

Kejbal Natalya Aleksandrovna

Krekaleva Tamara Viktorovna

Sitnikov Evgenij Evgenevich

Shaporov Evgenij Viktorovich

Kutsov Aleksandr Nikolaevich

Dates

2018-05-15—Published

2017-06-22—Filed