Vertical distribution features of coal reservoir physical property in Songcan No.1 Well of Songhe Mine Field,West Guizhou

in order to study the exploration development potential of the coalbed methane in Songhe Mine Fied West Cuizhou.several measurement and test means were applied to systematically analyze the differences of the porestructre,pressure coicient gas bearing.permeatility and others of the coalresevir in SongcanN.1 Well and comprehensively evaluate the geolgic conditon of the calbed methane development inthe mining re . Theresults showed that the netamophic degree of the muilit seams in the mine was increased from the shallow depth to the deep depth and the seepage pore volume was decreased.The pressuece Fic nt and thagas bearing volume were fucuated obviously at the verical layer direction and there were several gas eaing systens.The permeabiliyof the top seam in the test wellwas igher than the boom seam and some seam had the overpressure,versaturation.and high geothermal temperature and otherfeatues. he resource condtions with the mining area were favorable and the physical property oiferences of thereservoirs were obious i ongitude A futher stucy should be conducted on the strata selection,fracturing,mingling and others of the coalbed methane development.