Accumulation of coal-bed gas in the Wangying-Liujia area of the Fuxin basin  

作　　者：Wang Bo Jiang Bo Xu Fengyin Kong Xiangwen Li Guizhong Wang Xiaoyi Chen Weiyin Geng Meng 

机构地区：[1]School of Resources and Geosdence,China University of Mining&Technology,Xuzhou 221008,China [2]LanE.fang Branch,Research Institute of Petroleum Exploration and Development,Langfang 065007,China [3]PetroChina Coalbed Methane Co.Ltd.,Beijing 100076,China [4]Well Testing Company,Bohai Drilling Company,Langfang 065007,China

出　　处：《International Journal of Mining Science and Technology》2012年第1期1-6,共6页矿业科学技术学报（英文版）

基　　金：supported by the National Science and Tech-nology Major Project(No.2008ZX05033);the National Basic Research Program of China(No.2009CB219601)

摘　　要：The gas enrichment conditions in the Fuxin basin are compared to those of the Powder River basin.The coal bed depth,the gas content,the individual coal bed layer thickness,and the overall structure thickness of the Powder River basin in the U.S.were examined.The main factors affecting gas enrichment were examined.These factors include the coal-forming environment,the gas sources,the geological structure,the presence of magmatic activity,and the local hydrology.The coal-bed gas enrichment area in the Wangying-Liujia block of the Fuxin basin is then discussed by analogy.A hydrodynamic-force/dike-plugging model based on a magma fractured bed is proposed to explain the gas enrichment in this part of the Fuxin basin.High gas production is predicted in areas having similar conditions.This work will aid future coal-bed gas exploration and development.The gas enrichment conditions in the Fuxin basin are compared to those of the Powder River basin. The coal bed depth, the gas content, the individual coal bed layer thickness, and the overall structure thick- ness of the Powder River basin in the U.S. were examined. The main factors affecting gas enrichment were examined. These factors include the coal-forming environment, the gas sources, the geological structure, the presence of magmatic activity, and the local hydrology. The coal-bed gas enrichment area in the Wangying-Liujia block of the Fuxin basin is then discussed by analogy. A hydrodynamic-force/dike-plug- ging model based on a magma fractured bed is proposed to explain the gas enrichment in this part of the Fuxin basin. High gas production is predicted in areas having similar conditions. This work will aid future coal-bed gas exploration and development.

关 键 词：High abundance Coal-bed gas MAGMA Hydrodynamic force DESORPTION Enrichment model 

分 类 号：P618.11[天文地球—矿床学] P618.130.1[天文地球—地质学]