Permeability Change Caused by Stress Damage of Gas Shale
Permeability Change Caused by Stress Damage of Gas Shale
复制标题
含气页岩应力损伤引起的渗透率变化
DOI：
10.3390/en10091350
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发表时间：
2017-09
期刊：
影响因子：
3.2
通讯作者：
Ji Tian
中科院分区：
文献类型：
--
作者：
Chuanliang Yan;Yuanfang Cheng;Fucheng Deng;Ji Tian
单轴加载过程中泥页岩的应力损伤会引起渗透率的变化。目前对泥页岩应力敏感性的研究主要集中在围压对泥页岩渗透率的影响上，缺乏对轴向应力加载过程中泥页岩渗透率变化的研究。对加载过程中的气页岩渗透率进行了测试。结果表明，泥页岩损伤宏观上反映了轴向微裂纹的产生和扩展过程，轴向微裂纹在加载过程中会引起渗透率的变化。泥质岩加载过程中损伤发展与微裂纹扩展之间存在良好的对应关系。损伤因子在线弹性阶段增大，进入微裂纹失稳扩展阶段后迅速增大，泥页岩渗透率随泥页岩损伤程度的增加而增大。研究结果为进一步分析页岩气藏井壁失稳和水力压裂机理提供了可靠的试验依据。
Stress damage of shale during the uniaxial loading process will cause the change of permeability. The study of stress sensitivity of shale has focused on the influence of confining pressure on shale permeability and the change of shale permeability during the loading process of axial stress is lacking. The permeability of gas shale during loading process was tested. The results show that shale damage macroscopically reflects the process of axial micro-cracks generation and expansion, and the axial micro-cracks will cause permeability change during the loading process. There is a good corresponding relationship between damage development and micro-crack expansion during the process of shale loading. The damage factor will increase in the linear elastic stage and enlarge rapidly after entering the stage of unstable micro-crack expansion, and the permeability of shale increases with the increasing of shale damage. The research results provide a reliable test basis for further analysis of the borehole instability and hydraulic fracture mechanisms in shale gas reservoirs.
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影响因子：
1.5
作者：
Chen Shao-jie
通讯作者：
Chen Shao-jie
DOI：
10.1016/s0148-9062(98)00005-9
发表时间：
1998-10-01
影响因子：
7.2
作者：
Bobet, A;Einstein, HH
通讯作者：
Einstein, HH
影响因子：
7.5
作者：
C. Zou;D. Dong;Shejiao Wang;Jianzhong Li;Xinjing Li;Yuman Wang;Denghua Li;K. Cheng
通讯作者：
C. Zou;D. Dong;Shejiao Wang;Jianzhong Li;Xinjing Li;Yuman Wang;Denghua Li;K. Cheng
DOI：
--
发表时间：
2015-11
期刊：
--
影响因子：
--
作者：
Xiang Li;Zi-jun Feng;G. Han;D. Elsworth;C. Marone;D. Saffer
通讯作者：
Xiang Li;Zi-jun Feng;G. Han;D. Elsworth;C. Marone;D. Saffer
DOI：
10.1007/s40948-016-0022-6
发表时间：
2016-01
影响因子：
5
作者：
Xiang Li;Zi-jun Feng;G. Han;D. Elsworth;C. Marone;D. Saffer;D. Cheon
通讯作者：
Xiang Li;Zi-jun Feng;G. Han;D. Elsworth;C. Marone;D. Saffer;D. Cheon