高校地质学报2012，Vol.18Issue(3)：516-521,6.
云南恩洪和老厂地区煤储层孔隙-裂隙系统对比分析
Comparative Analysis of Pore and Fracture System of Coal Reservoirs from Enhong and Laochang Districts, Yunnan
摘要
Abstract
Enhong and Laochang 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. Results showed that the adsorption pore structure of these two Laochang 1s coals is better than that of the Enhong's coals but the seepage pore structure of the Enhong's coals has a higher homogeneity and seepage capacity than that of the Laochang'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. It was found that the proportion of the adsorption pores has a linear correlation with the fixed carbon content and vitrinite reflectance while the proportion of the seepage pores has a positive correlation with volatile yield and inertinite content. Volume of the seepage pores makes a greater contribute to coal porosity, and the coal permeability is controlled by both the porosity and micro-fracture frequency.关键词
煤储层/孔隙-裂隙系统/恩洪/老厂Key words
coal reservoir/ pore and fracture system/ Enhong/ Laochang分类
天文与地球科学引用本文复制引用
李松,汤达祯,许浩,陶树,杨紫..云南恩洪和老厂地区煤储层孔隙-裂隙系统对比分析[J].高校地质学报,2012,18(3):516-521,6.基金项目
国家自然科学基金重点项目(40730422)和国家科技重大专项(2011ZX05034)联合资助 （40730422）
