The Better Chosen Of The Field Arrangement Of The Drill Hole Pulls Out Putting Drills And The Drill Hole Parameter Of The Coal Bed Gas In PanJiang Mining Area

This article according to mine pit coal mining to cause the principle which the mine shaft coal bed gas pressure reduces, taking the PanJiang mining area mining coal bed as the research object, it has analyzed the reserves and the saves condition which the PanJiang mining area coal bed was mad; In to affects the coal bed permeable each kind of factor analysis above the foundation, carries on the appraisal using the method of drill hole radial flow and its the permeable coefficient formula to the PanJiang mining area each mining coal bed permeability, finally indicated, at the PanJiang mining atea, the mining coal beds are 3, 5,12, 17, 18 coal beds .which are low permeable coal beds; In to affects above each kind of factor analysis foundation which the coal gas were generation and storage, carries on the appraisal using the sector number fuzzy synthesis appraisal law to the mining area each mining coal bed, finally indicated, at the PanJian mining area, the condition of the coal bed gas of the mining coal beds are good, the coal bed gas which is good and superior concentrates in the mining area depth portion; Simultaneously ,to the mining area coal bed gas was mad the reserves has carried on the computation, counting in this article author in scope, counting the syncline of PanGuan, the syncline of TuCheng, the syncline of ZhaoZiHe, the syncline of Shuifang, the syncline of JiuPuAn which the syncline burying depth is mad the resources total quantity of the coal bed gas in 200-1500 meters, about 60 billion cubic meters; This article earnestly analyzed the coal bed gas to be mad in the process in pulled out puts to experience the adsorption stripping, the proliferation and the transfusion three stages.ThoUght the coal bed gas is mad the massive mobile keys which were mad the release of pressure; Established the better chosen of the field arrangement of the drill hole pulls out putting drills and the drill hole parameter of the coal bed gas in PanJiang mining area , through to choose the coal beds gas of the drill hole pulled out puts the method of the 121217 working surfaces of the ore of LaoWuJi of he PanJiang mining area, finally indicated, the system of the drill hole pulled out puts drills the field arrangement and the drill hole parameter vote of the coal bed gas of the PanJiang mining area is feasible, the mentality and the overall frame are correct, has the certain practical value.