Quantitative Studies on the Characterization and Evaluation of Adsorbed Gas and Free Gas in Deep Shale Reservoirs

doi:10.1021/acs.energyfuels.2c04261

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	Quantitative Studies on the Characterization and Evaluation of Adsorbed Gas and Free Gas in Deep Shale Reservoirs
	Shen WJ(沈伟军); Zuo, Luo ; Ma, Tianran 1; Chen, Cong 2; Qin, Chaozhong 3; Yang, Liu 4; Xie, Kun
发表期刊	ENERGY & FUELS
	2023
页码	3752-3759
ISSN	0887-0624
摘要	The quantitative characterization of adsorbed gas and free gas in shale reservoirs is a key issue in exploration and development of shale gas. Thus, the aforementioned topic is of great significance to the evaluation of reserves, the screening of favorable target areas, and the formulation of development plans. However, research on our current understanding of the quantities of adsorbed gas and free gas in deep shale gas reservoirs is still lacking. To address this problem, deep shales from the Longmaxi Formation in southern China were collected to conduct high pressure isothermal adsorption experiments. The high pressure isothermal adsorption model was used to describe the adsorption behavior of methane in deep shales, and the adsorbed gas and free gas in the deep shales were characterized quantitatively. The effects of temperature, pressure, and moisture on the adsorbed gas and the density of the free gas were analyzed. The results indicated that the excess adsorption isotherm curve for methane in deep shales increased and then decreased with the increase of pressure, and the modified Langmuir adsorption model may be used to describe the high pressure adsorption behaviors. The adsorbed gas in shales decreases gradually with the increase of pressure, and the proportion of adsorbed gas and free gas is between 23 and 74% when the pressure reaches 50 MPa. The adsorbed gas in deep shales decreases with an increase of temperature, and the presence of water greatly reduces the adsorption capacity of the deep shale. The pore space occupied by the free gas in shale increased with the increase in the density of the free phase, and the ratio of the adsorbed gas to the free gas decreased. This research provides a useful reference for explaining how to best evaluate shale gas reservoirs, estimate the reserves in deep shales, and evaluate the adsorption and flow capacity of deep shale gas.
DOI	10.1021/acs.energyfuels.2c04261
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000943317400001
WOS研究方向	Energy & Fuels ; Engineering, Chemical
WOS类目	Energy & Fuels ; Engineering
项目资助者	National Natural Science Foundation of China [12172362] ; China National Petroleum Corporation (CNPC) Innovation Foundation [2021DQ02 0204] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences
论文分区	二类
力学所作者排名	1
RpAuthor	Shen, WJ (corresponding author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China. ; Shen, WJ (corresponding author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China.
引用统计	被引频次：32[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/91840
专题	流固耦合系统力学重点实验室
作者单位	1.Sinopec Res Inst Petr Engn, Beijing 100101, Peoples R China 2.China Univ Min & Technol, Sch Mech & Civil Engn, Jiangsu 221116, Peoples R China 3.Dalian Univ Technol, Key Lab Ocean Energy Utilizat, Energy Conservat Minist Educ, Dalian 116024, Peoples R China 4.Chongqing Univ, State Key Lab Coal Mine Disaster Dynam & Control, Chong Qing Shi 400044, Peoples R China 5.China Univ Min & Technol, State Key Lab Geomech & Deep Underground Engn, Beijing 100083, Peoples R China 6.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China 7.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Shen WJ,Zuo, Luo,Ma, Tianran,et al. Quantitative Studies on the Characterization and Evaluation of Adsorbed Gas and Free Gas in Deep Shale Reservoirs[J]. ENERGY & FUELS,2023:3752-3759.Rp_Au:Shen, WJ (corresponding author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China., Shen, WJ (corresponding author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China.
APA	沈伟军.,Zuo, Luo.,Ma, Tianran.,Chen, Cong.,Qin, Chaozhong.,...&Xie, Kun.(2023).Quantitative Studies on the Characterization and Evaluation of Adsorbed Gas and Free Gas in Deep Shale Reservoirs.ENERGY & FUELS,3752-3759.
MLA	沈伟军,et al."Quantitative Studies on the Characterization and Evaluation of Adsorbed Gas and Free Gas in Deep Shale Reservoirs".ENERGY & FUELS (2023):3752-3759.

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