METHOD FOR SEALING DEGASSING WELLS Russian patent published in 2018 - IPC E21F7/00 E21B33/10 

Abstract RU 2641555 C9

FIELD: mining.

SUBSTANCE: method for sealing degassing wells comprises performing oriented hydraulic fracturing of rocks, creating air-impermeable screens in surrounding array, creating rock layer preventing air filtration into the working part of the degassing well. The rock layer preventing air filtration into the working part of the degassing well is formed between two parallel air-impermeable screens due to impregnation of rocks with liquid with formation pressure higher than air pressure in the mine working.

EFFECT: reduced air inflow from the mine working into the working part of degassing well through coal-rock mass.

10 cl, 1 dwg

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RU 2 641 555 C9

Authors

Shilova Tatyana Viktorovna

Serdyukov Sergej Vladimirovich

Patutin Andrej Vladimirovich

Serdyukov Aleksandr Sergeevich

Dates

2018-01-18Published

2016-12-01Filed