Technology and method of coal and gas outburst prediction during coal geological ezploration
During coal resource exploration, structural deformed coal can be distinguished using geophysical well logging, and also can be predicted through the analysis of thickness of coal seam and its variations, and through the analysis of lithology, thickness and mechanics property of the roof and the floor of the coal seam and their variations. In-situ stress state and extent of deformation of the coal seam can be obtained from analysis of geological structure, structure curvature of the floor contour map of coal seam, and stress numerical simulation. In addition, we can obtain the measured gas content and pressure of coal seam directly from measures, and indirectly from the prediction means of gradient of gas content and pressure of the coal seam, explanation of geophysical data. Based on the coupling analysis of gas content, coal mechanical properties and stress state, we put forward technology and method to prediction of outburst zone of coal and gas.
gas structural deformed coal well logging structure curvature
Fu Xue-hai Zhang Wen-ping Zhou Ya-nan Si Xu-fei Wu Hang
School of Resource and Earth Sciences, China University of Mining & Technology, Xuzhou 222116, China Technology center of Luan Mining Group, Changzhi 046204, China School of Resource and Earth Sciences, China University of Mining & Technology, Xuzhou 222116, China
国际会议
The 6th International Conference on Mining Science & Technology ICMST 2009(第六届国际矿业科学技术大会)
徐州
英文
1-6
2009-10-18（万方平台首次上网日期，不代表论文的发表时间）