Impact of shale matrix mechanical interactions on gas transport during production
文献类型：期刊论文
| 作者 | Cui, Guanglei9; Xia-Ting, Feng8,9 ; Pan, Zhejun7; Chen, Tianyu9; Liu, Jishan6; Elsworth, Derek4,5; Tan, Yuling1,2; Wang, Chunguang3
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| 刊名 | JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
 |
| 出版日期 | 2020 |
| 卷号 | 184页码:15 |
| 关键词 | Effective diffusion Surface diffusion Organic matter Inorganic minerals Effective stress |
| ISSN号 | 0920-4105 |
| DOI | 10.1016/j.petrol.2019.106524 |
| 英文摘要 | Shale gas has played an increasingly important role in world energy supply in recent years. The gas transport process in the shale matrix is particularly important as it affects the long-term production behavior of shale gas. The shale matrix consists of inorganic minerals and embedded organic matter with mass transfer influenced by mechanical interactions. We develop a micro-scale discrete coupled model to explicitly account for mass transfer and mechanical interactions, and how these interactions affect the gas transport characteristics of both components. Specifically, the model comprises organic matter embedded within inorganic minerals. The proposed model is implemented and solved within the framework of COMSOL Multiphysics (Version 5.4). The model is first verified against the results of a desorption-diffusion-seepage coupled experiment and then extended to field scale. It is found that the impacts of gas pressure and effective strain are different for the gas seepage in inorganic minerals and gas diffusion in organic matter. Gas pressure may enhance the permeability of the inorganic phase due to the gas slippage effect while compactive effective strain decreases permeability during the gas depletion process. For gas diffusion in the organic matter, surface diffusion decreases and effective diffusion coefficient increases with declining gas pressure. While the impacts of effective strain on the effective diffusion are dependent on the external boundary conditions, the effective diffusion coefficient is lower than the initial value under constant stress conditions and larger than the initial value under constant volume conditions. The proposed model provides a complementary method to conventional continuum dual-media approaches and provides a clear understanding of the interactions between the two components. Field-observed oscillatory gas production data is readily history-matched and key mechanisms explained with the proposed approach presented in this work. |
| 资助项目 | Natural Science Foundation of China[51609038] ; 111 Project[B17009] ; Fundamental Research Funds for the Central Universities[N180104021] ; Fundamental Research Funds for the Central Universities[N160104002] |
| WOS研究方向 | Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000501599800075 |
| 出版者 | ELSEVIER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/23205]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Xia-Ting, Feng; Chen, Tianyu |
| 作者单位 | 1.Shandong Univ Sci & Technol, Minist Sci & Technol, Qingdao, Shandong, Peoples R China 2.Shandong Univ Sci & Technol, State Key Lab Min Disaster Prevent & Control Cofo, Qingdao, Shandong, Peoples R China 3.China Univ Geosci, Key Lab Tecton & Petr Resources, Wuhan 430074, Hubei, Peoples R China 4.Penn State Univ, Energy Inst, University Pk, PA 16802 USA 5.Penn State Univ, G3 Ctr, Dept Energy & Mineral Engn, University Pk, PA 16802 USA 6.Univ Western Australia, Sch Mech & Chem Engn, 35 Stirling Highway, Perth, WA 6009, Australia 7.CSIRO Energy Business Unit, Private Bag 10, Clayton, Vic 3169, Australia 8.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China 9.Northeastern Univ, Minist Educ Safe Min Deep Met Mines, Key Lab, Shenyang 110004, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cui, Guanglei,Xia-Ting, Feng,Pan, Zhejun,et al. Impact of shale matrix mechanical interactions on gas transport during production[J]. JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING,2020,184:15. |
| APA | Cui, Guanglei.,Xia-Ting, Feng.,Pan, Zhejun.,Chen, Tianyu.,Liu, Jishan.,...&Wang, Chunguang.(2020).Impact of shale matrix mechanical interactions on gas transport during production.JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING,184,15. |
| MLA | Cui, Guanglei,et al."Impact of shale matrix mechanical interactions on gas transport during production".JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING 184(2020):15. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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