Method for preventing rock burst through blasting pressure relief of ground horizontal well
The invention discloses a ground horizontal well blasting pressure relief rock burst prevention method. The method is specifically implemented according to the following steps that the position of a fracturing layer and the fracturing interval are determined; a vertical well section of the L-shaped...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a ground horizontal well blasting pressure relief rock burst prevention method. The method is specifically implemented according to the following steps that the position of a fracturing layer and the fracturing interval are determined; a vertical well section of the L-shaped horizontal well is built on the ground, and a sleeve is embedded into the vertical well section to fix the well wall; constructing a horizontal section of the L-shaped horizontal well; a designed fracturing position is formed in the horizontal section of the L-shaped horizontal well, and two shotcrete holes in the vertical direction are formed in the fracturing position in an up-and-down mode through perforating bullets till all the shotcrete holes are formed in the position needing to be fractured; two packers are arranged in front of and behind each group of bullet shooting holes, a wireless relay is put into each group of packers, and the relay is connected with an electric detonator and a power supply; liquid e |
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