Quantitative Analysis on the Wall-Rock Capped Ability of Coal Bed Gas

摘要：

The paper used gas-geology method to analyze quantitatively the wail rock capped condition of coal seam gas. Sandstone ratio and effect coefficient of rock stratum thickness and roof litho logic, 3 gas geology parameters have been put forward to calculate the capped ability index (SI) of cap rock in coal seam gas, and the gas geology units were zoned according to the capped ability of capped stratum in the researching region No.21eoal seam. The research results indicated that the cap types of the researching region were kinds of from I to IV, east north region belonged to 1 high capped regions, partial stretch in middle part belonged to IV lower capped regions, and the most regions belonged to Ⅱ-Ⅲ which had middle capped ability.

关键词： capped condition capped index capped type gas geology zoning capped region

作者: L(U) Runsheng YANG Xiaona ZHANG Zixu

作者单位: School of Resources & Environment Engineering,Henan Polytechnic University,Jiaozuo 454003,Henan,China

会议类型: 国际会议

会议名称: The 2008 International Symposium on Safety Science and Technology(2008年安全科学技术国际会议)

会议地点: 北京

会议语种:英文

页码: 1638-1641

在线出版日期: 2008-09-24（万方平台首次上网日期，不代表论文的发表时间）