High-pressure methane adsorption behavior on deep shales: Experiments and modeling | |
Shen WJ(沈伟军); Li XZ; Ma TR; Cai JC; Lu XB(鲁晓兵) | |
刊名 | Physics of Fluids |
2021-06 | |
卷号 | 33期号:6页码:063103 |
DOI | 10.1063/5.0054486 |
英文摘要 | Understanding methane adsorption behavior on deep shales is crucial for estimating the original gas in place and enhancing gas recovery in deep shale gas formations. In this study, the methane adsorption on deep shales within the lower Silurian Longmaxi formation from the Sichuan Basin, South China was conducted at pressures up to 50 MPa. The effects of total organic carbon (TOC), temperatures, clay minerals, and moisture content on the adsorption capacity were discussed. The results indicated that the methane excess adsorption on deep shales increased, then reached its peak, and finally decreased with the pressure. The excess adsorption data were fitted using the adsorption models, and it was found that the Dubinin–Radushkevich (D–R) model was superior to other models in predicting the methane adsorption behavior. The methane adsorption capacities exhibited strong positive correlations with the TOC content and negative relationships with clay minerals. The methane excess adsorption decreased with the temperature, while the opposite trend would occur once it exceeded some pressure. The presence of the moisture content on deep shales sharply decreased the methane adsorption capacities, and the reduction of the adsorption capacity decreased with the pressure. The moisture would occupy the adsorption sites in the shale pores, which could result in the methane adsorption capacity that decreased。 |
分类号 | 一类/力学重要期刊 |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://dspace.imech.ac.cn/handle/311007/86639] |
专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
通讯作者 | Shen WJ(沈伟军) |
作者单位 | 1.State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China 2.School of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China 3.PetroChina Research Institute of Petroleum Exploration and Development, Beijing 10083, China 4.School of Engineering Science, University of Chinese Academy of Sciences, Beijing 100049, China 5.State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China 6.Key Laboratory for Mechanics in Fluid Solid Coupling Systems, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China |
推荐引用方式 GB/T 7714 | Shen WJ,Li XZ,Ma TR,et al. High-pressure methane adsorption behavior on deep shales: Experiments and modeling[J]. Physics of Fluids,2021,33(6):063103. |
APA | Shen WJ,Li XZ,Ma TR,Cai JC,&Lu XB.(2021).High-pressure methane adsorption behavior on deep shales: Experiments and modeling.Physics of Fluids,33(6),063103. |
MLA | Shen WJ,et al."High-pressure methane adsorption behavior on deep shales: Experiments and modeling".Physics of Fluids 33.6(2021):063103. |
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