Based on the principle of grey association analysis,the present paper has put forward a fairly practical and readily programmed cluster method—grey association cluster method,and employed this method to demarcate coal beds and gas beds,discriminate between coal-produced gas bed,oil bed and water bed ,and make lithostratigraphic classification.

The overseas power generation technology with the methane contained in the coal mine exhaust as fuel can surely be made use of by our country to enhance the utilization rate of the recovered energy.