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2 507 378

(13)

(51)

IPC

E21B33/138(2006-01-01)

(21) (22)

Application

2012141553/03, 2012-09-27

(24)

Start date

2012-09-27

(22)

Actual filing date

2012-09-27

(45)

Published

2014-02-20

(72)

Inventor

Serdjukov Sergej VladimirovichPatutin Andrej VladimirovichSerdjukov Aleksandr SergeevichShilova Tat'Jana Viktorovna

(73)

Holder

Federal'Noe Gosudarstvennoe Bjudzhetnoe Uchrezhdenie Nauki Institut Gornogo Dela Im. N.A. Chinakala Sibirskogo Otdelenija Rossijskoj Akademii Nauk So Ran)

METHOD OF SEALING DEGASSING HOLES Russian patent published in 2014 - IPC E21B33/138

Abstract RU 2507378 C1

FIELD: oil-and-gas industry.

SUBSTANCE: proposed method comprises airtight shield by filling the hydrofrac fracture with liquid nonhardening composition at pressure not lower than that of shield compression between host rocks and higher than air pressure in excavation. While blocking layer with threshold pressure gradient to prevent air filtration towards degassing well working part is created in rocks between said shield and excavation.

EFFECT: higher reliability, longer life.

9 cl, 1 dwg

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RU 2 507 378 C1

Authors

Serdjukov Sergej Vladimirovich

Patutin Andrej Vladimirovich

Serdjukov Aleksandr Sergeevich

Shilova Tat'Jana Viktorovna

Dates

2014-02-20—Published

2012-09-27—Filed