Enhancing shale gas recovery and CO2 sequestration: Microscopic mechanisms of adsorption and diffusion in shale pores
文献类型：期刊论文
| 作者 | Chang, Xin1; Lin, Shuangshuang1,2; Yang, Chunhe1; Guo, Yintong1; Dai, Xiulan3 |
| 刊名 | PHYSICS OF FLUIDS
 |
| 出版日期 | 2024-11-01 |
| 卷号 | 36期号:11页码:17 |
| ISSN号 | 1070-6631 |
| DOI | 10.1063/5.0234572 |
| 英文摘要 | The global energy imbalance has created significant challenges and environmental consequences. Integrating carbon sequestration with shale gas development provides a promising solution to address both issues simultaneously. This study explores the adsorption, desorption, and diffusion behaviors of methane and CO2 in shale pores using a high-precision, high-pressure adsorption apparatus alongside molecular simulation techniques. Results demonstrate that CO2 shows a markedly higher adsorption capacity in shale pores than methane, particularly at high pressures. Simulations reveal that CO2 molecules nearly saturate pore spaces at pressures above 10 MPa. Methane's diffusion coefficient, initially high at low pressures, drops sharply with increasing pressure, decreasing by approximately 90% from 5.6 x 10(-10) m(2)/s at 154 psi to 1.38 x 10(-11) m(2)/s at 1032 psi. Conversely, CO2 diffusion remains stable under pressure changes, suggesting that methane diffusion is constrained by intermolecular interactions at high pressures, while CO2 retains stable movement. Under a reservoir condition of 30 MPa with adsorbed CH4, CO2 injection at varying pressures continues to enhance CO2 adsorption, underscoring CO2's dual role in boosting shale gas recovery while achieving carbon sequestration. This study highlights CO2-methane displacement mechanisms, providing theoretical insight that support both effective shale gas recovery and CO2 storage. |
| 资助项目 | National Natural Science Foundation of China10.13039/501100001809[52104046] ; National Natural Science Foundation of China |
| WOS研究方向 | Mechanics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001360792400013 |
| 出版者 | AIP Publishing |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/43263]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Lin, Shuangshuang |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, Key Lab Geomech & Geotech Engn Safety, Wuhan 430071, Hubei, Peoples R China 2.China Univ Min & Technol Beijing, Sch Emergency Management & Safety Engn, Beijing 100083, Peoples R China 3.SSC Jianghan Shale Gas Dev Technol Serv Co, Wuhan 430074, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chang, Xin,Lin, Shuangshuang,Yang, Chunhe,et al. Enhancing shale gas recovery and CO2 sequestration: Microscopic mechanisms of adsorption and diffusion in shale pores[J]. PHYSICS OF FLUIDS,2024,36(11):17. |
| APA | Chang, Xin,Lin, Shuangshuang,Yang, Chunhe,Guo, Yintong,&Dai, Xiulan.(2024).Enhancing shale gas recovery and CO2 sequestration: Microscopic mechanisms of adsorption and diffusion in shale pores.PHYSICS OF FLUIDS,36(11),17. |
| MLA | Chang, Xin,et al."Enhancing shale gas recovery and CO2 sequestration: Microscopic mechanisms of adsorption and diffusion in shale pores".PHYSICS OF FLUIDS 36.11(2024):17. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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