Characteristics of Diabase Bed of Xuandong No.2 Mine in Xuanhua-Xiahuayuan Coal Field and Control Action about Coal Bed Gas
Zhangjiakou Xuandong No.2 Mine is a high gassy mine.Xuandong Diabase intrudes into Jurassic Xiahuayuan coal measure strata with the form of bed rock, which led to the geothermal fields abnormity and regional thermal metamorphism of coal bed in the study area.The thermal metamorphism of coal is the direct cause of the secondary hydrocarbon-generating.This kind of hydrocarbon generation is the most important factor on current gas content, which plays decisive role on the generation of coalbed gas.Diabase Bed is a good caprock which block the escape route of the gas.The bed rock plays a crucial role on the protection and enrichment of the gas.
Diabase bed coalbed gas Xuandong No.2 Mine thermal evolution hydrocarbon-generating
WANG Xianghui
Coal Geological Bureau of Hebei Province Fourth Geological Team,Xuanhua 075100,China
国际会议
第十八届凯洛林国际地质学术研讨会(The 18th Kerulien International Conference on Geological)
石家庄
英文
461-466
2013-09-20（万方平台首次上网日期，不代表论文的发表时间）