Comparative Analysis of Pore and Fracture System of Coal Reservoirs from Enhong and Laochang Districts, Yunnan Province

详细信息   

• 责任者：Li Song (Coalbed Methane Reservoir Laboratory of National Engineering Center ; School of Energy Resources ; China University of Geosciences ; Beijing 100083 ; China) ; Tang Dazhen
• 刊名：Geological Journal of China Universities
• 出版年：2012
• 卷期：18(3)
• 关键词：煤储层 ; coal reservoirs ; 云南 ; Yunnan Province
• 页码：p.516-521
• 图表：2 illus., 4 tables， 11 refs.
• 分类号：1004
• issnNo：ISSN1006-7493
• isbnNo：CN32-1440/P

摘要

    

Enhong and Laoehang districts in Yunnan Province are the potential areas of the coalbed methane （CBM） development in the southwest China. Based on the lab data, the adsorption, seepage and geological controls of the coal reservoirs in the districts were discussed in the light of the pore and fracture system. The results showed that the adsorption pore structure of these two Laochang’s coals is better than that of the Enhong’s coals. However, the higher frequency of the micro-fracture occurrence in the Laochang’s coals makes up for the defect of seepage pore structure.