摘要
介绍了割理识别准则、面割理和端割理的区分及严格定义、割理级别、割理的研究内容、割理的形成以及割理对煤层渗透性的控制作用。对滇东 黔西地区晚二叠世煤层数个向斜井下二十五块煤样 ,经制煤片 ,运用定性、定量分析和显微镜下观测相结合的方法 ,对煤裂隙 (割理 )进行系统的研究和比较 ,得出结论 :数个向斜中 ,盘关向斜和格目底向斜煤样煤层裂隙 (割理 )普遍发育良好。
This paper introduces the cleat identification creterion, strict definitions of face cleat and butt cleat and their differences, cleat rank, formation and its control on coalbed permeability. Sheets of glass have been made for 25 coalbed samples availabie from wells in Upper Permian syncline of East Yunnan and West Guizhou. A systematic study and comparison of coalbed cleats are carried out by qualitative and quantitative analyses combining with microscope observation. The result is that the coalbed cleats in Panguan syncline and Gemudi syncline are well developed.
出处
《云南地质》
2000年第4期352-362,共11页
Yunnan Geology
关键词
煤层气
割理
研究
Coalbed Methane
Cleat
Study
