中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Experimental study of the laws between the effective confining pressure and mudstone permeability

文献类型:会议论文

作者Zeng Zhijiao1; Li Xiaochun1; Shi Lu1; Bai Bing1; Fang Zhiming1; Wang Ying2
出版日期2014
会议日期OCT 05-09, 2014
会议地点Austin, TX
关键词permeability mudstone effective confining pressure microcrack
卷号63
DOI10.1016/j.egypro.2014.11.598
页码5654-5663
英文摘要The stress dependent permeability of a mudstone sample was measured using a transient pulse technique in a specially designed apparatus in which the confining pressure, pore pressure, and temperature were independently controlled. Experiments were conducted with the confining pressure first gradually increased from 10 to 30 MPa and then subsequently reduced back to 10 MPa. And the pore pressure was kept constant of 5 MPa during the whole process. During the loading process of effective confining pressure, the permeability of the mudstone had a nonlinear reduction with increasing stress and showed a high stress sensitivity (varying three orders of magnitude). The phenomenon can be explained that microcrack closure is the dominant mechanism controlling the evolution of mudstone permeability with the effective confining pressure during the loading process. The experimental results indicate that there is good fit of a model with exponential relationship of permeability and effective confining pressure to the data points. When unloading the effective confining pressure, the permeability of mudstone had very tiny increase and showed weak recovery capability. This is the result of the irreversibility of crack closure. (C) 2014 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/3.0/).
会议录12TH INTERNATIONAL CONFERENCE ON GREENHOUSE GAS CONTROL TECHNOLOGIES, GHGT-12
会议录出版者ELSEVIER SCIENCE BV
会议录出版地AMSTERDAM
语种英语
WOS研究方向Chemistry ; Energy & Fuels
WOS记录号WOS:000361211505085
源URL[http://119.78.100.198/handle/2S6PX9GI/4831]  
专题岩土力学所知识全产出_会议论文
国家重点实验室知识产出_会议论文
作者单位1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ;
2.Southwest Petr Univ, Inst Oil & Gas Engn, Geol Storage & Enhanced Oil & Gas Recovery CO2, Chengdu, Sichuan, Peoples R China
推荐引用方式
GB/T 7714
Zeng Zhijiao,Li Xiaochun,Shi Lu,et al. Experimental study of the laws between the effective confining pressure and mudstone permeability[C]. 见:. Austin, TX. OCT 05-09, 2014.

入库方式: OAI收割

来源:武汉岩土力学研究所

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