页岩气开采的相关实验_模型和环境效应_张宏学.pdf

35 2 Vol.35 Supp.2 2014 10 Rock and Soil Mechanics Oct. 2014 (2014)2 0085 16 1, 2 1 1. 221116 2. 232001 CO2 CO2 TE 155 A Relevant experiments, models and environmental effect of shale gas production ZHANG Hong-xue1, 2LIU Wei-qun1 1. State Key Laboratory for Geomechanics Deep Underground Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China; 2. College of Sciences, Anhui University of Science Technology, Huainan, Anhui 232001, China Abstract: Shale gas, an important unconventional natural gas resources, is transforming world energy and economic and political pattern. Permeability is one of the most important parameters of shale gas reservoirs that estimates their viability for commercial development. The mechanism of gas flow in the shale gas reservoirs is different from that of a conventional gas reservoir because of the tight nature of the rock matrix. Therefore, permeability measurements of shale reservoirs and flow model for shale gas have become one of hot topics for international research in nowadays. In this paper, theoretical and experimental studies of permeability measurements of shale reservoirs are summarized based on a simple presentation of shale gas production technique. Furthermore, the effects of gas adsorption on shale permeability are analyzed. Latest advances of shale gas flow model are reviewed; and accuracy of a dual-pore model describing gas transport is analyzed. Multistage transport models for desorption and diffusion and seepage of