METHOD FOR ELIMINATION OF DEGASSING WELLS Russian patent published in 2016 - IPC E21F15/08 E21B33/13 

FIELD: mining.

SUBSTANCE: invention relates to controlling ventilation of high-efficiency cleaning of coal faces with system of deposit development by long columns in process scheme "shaft-bed". According to method in degassing wells drilled in coal pillar between parallel workings at development of coal deposits by long columns, set injection and control tubes. One prepares hardening solution or liquid chemical composition with given properties from condition of coal massif continuity and elimination of gas exchange between openings after hardening of said solutions or compositions. Through injection tube degassing wells are filled with said solutions or compositions on side of active workings upslope upward degassing wells in direction to parallel mines, spent working front face. At that, controlled complete at entire cross-section filling of degassing wells hardening solutions or liquid mineral compositions by check tubes and cracks in boards workings that crosses degassing wells in coal pillar.

EFFECT: increase in efficiency of elimination of degassing wells.

2 cl, 3 dwg