The Output Mechanism And Control Factors Of The Coal Powder In Panzhuang Area, Qinshui Basin

Reasonable controlling of the coal powder production has become a key factor in CBM well’shigh and steady yield. Based on the geological characteristics and production status of Panzhuangarea in Qinshui Basin, combining rock mechanics, coal bed methane geology and other disciplines,taking geological characteristics and conditions of coal powder, destruction laws andcharacteristics of coal rock mass under mining activities as the main line, by theoretical analysis,laboratory testing and statistic analysis of CBM wells production filed data, the output mechanismfor coal powder for Pazhuang area of Qinshui basin are studied, the mechanical mechanism ofcoal powder under the conditions of the geological controlling fanctors and engineeringdisturbances is summed up, and it is of great practical and theoretical significance.