Thermomechanical coupling seepage in fractured shale under stimulation of supercritical carbon dioxide

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成果类型：

期刊论文

作者：

Liu, Guojun;Shang, Delei;Chu, Peng;Zhao, Yuan;Lu, Jun;...

通讯作者：

Shang, DL

作者机构：

[Liu, Guojun] Hunan City Univ, Coll Civil Engn, Hunan Engn Res Ctr Struct Safety & Disaster Preven, Yiyang, Peoples R China.

[Liu, Guojun] Chongqing Univ, State Key Lab Coal Mine Disaster Dynam & Control, Chongqing, Peoples R China.

[Shang, DL; Shang, Delei; Li, Jianhua; Chu, Peng; Lu, Jun] Shenzhen Univ, Inst Deep Earth Sci & Green Energy, State Key Lab Intelligent Construct & Hlth Operat, Guangdong Prov Key Lab Deep Earth Sci & Geothermal, Shenzhen, Peoples R China.

[Zhao, Yuan] POWERCHINA, Sinohydro Bur Co Ltd 8, Changsha, Peoples R China.

[Zhao, Yuan] Tsinghua Univ, Dept Hydraul Engn, Beijing, Peoples R China.

通讯机构：

[Shang, DL ] S

Shenzhen Univ, Inst Deep Earth Sci & Green Energy, State Key Lab Intelligent Construct & Hlth Operat, Guangdong Prov Key Lab Deep Earth Sci & Geothermal, Shenzhen, Peoples R China.

语种：

英文

关键词：

Supercritical carbon dioxide;shale gas;Permeability;Porosity;Effective stress;pore pressure

期刊：

FRONTIERS IN EARTH SCIENCE

ISSN：

2296-6463

年：

2024

卷：

页码：

1399806

DOI：

10.3389/feart.2024.1399806

基金类别：

The author(s) declare that financial support was received for the research, authorship, and/or publication of this article. This work was supported by the program for Natural Science Foundation of Hunan Province (No. 2021JJ40028).

机构署名：

本校为第一机构

院系归属：

土木工程学院

摘要：

As a waterless fracturing fluids for gas shale stimulation with low viscosity and strong diffusibility, supercritical CO2 is promising than the water by avoiding the clay hydration expansion and reducing reservoir damage. The permeability evolution influenced by the changes of the temperature and stress is the key to gas extraction in deep buried shale reservoirs. Thus, the study focuses on the coupling influence of effective stress, temperature, and CO2 adsorption expansion effects on the seepage characteristics of Silurian Longmaxi shale frac...

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Thermomechanical coupling seepage in fractured shale under stimulation of supercritical carbon dioxide

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