Characterization of methane adsorption on shale and isolated kerogen from the Sichuan Basin under pressure up to 60 MPa: Experimental results and geological implications

doi:10.1016/j.coal.2018.02.020

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 兰州油气中心

	Characterization of methane adsorption on shale and isolated kerogen from the Sichuan Basin under pressure up to 60 MPa: Experimental results and geological implications
	Li, Jing 1,2; Zhou, Shixin 1; Gaus, Garri 3; Li, Yuanju 1,4; Ma, Yu 1,4; Chen, Kefei 1,4; Zhang, Yuhong 1,4
刊名	INTERNATIONAL JOURNAL OF COAL GEOLOGY
	2018-03-15
卷号	189 页码:83-93
关键词	Shale gas Methane adsorption Kerogen Gas-in-place
ISSN号	0166-5162
DOI	10.1016/j.coal.2018.02.020
文献子类	Article
英文摘要	A series of methane adsorption isotherms were measured at pore pressures up to 60 MPa and at 60 degrees C, 100 degrees C and 140 degrees C for dried and overmature Paleozoic shales and isolated kerogen from the Sichuan Basin. At first, the measured excess adsorption increases with increasing pressure, reaches a maximum value at pressures ranging between 8 and 18 MPa and then decreases. The rate of decrease reduces with increasing pressures from 18 to 60 MPa, which is attributed to the nonlinear increase of free methane density with pressure. Additionally, an unusual increase of excess adsorption at pressures from 48 to 60 MPa was observed. Both, the supercritical Dubinin-Radushkevich (SDR)-based and Langmuir-based excess adsorption models, represent the excess adsorption isotherms equally well. The fitted maximum absolute adsorption capacities, when based on raw data from 0 to 30 MPa, are larger by an average of 11.5% when compared to the raw data from 0 to 60 MPa. This deviation indicates that experimentally derived gas adsorption characteristics can be biased with respect to the maximum pore pressure used in the respective experiments. The kerogen contribution to the total methane adsorption capacity of studied Paleozoic shale samples under in-situ hydrostatic pressure and temperature conditions of main shale formations in the Jiaoshiba shale gas play is lower than 50%. However, this contribution should be larger under realistic geological conditions, especially as existent moisture will affect clays stronger than organic matter and therefore reduce the contribution of clay towards the total sorption capacity. The estimated GIP of Paleozoic shales under geological hydrostatic pressure and temperature conditions of main shale formations in the Jiaoshiba shale gas play is 5.36-6.64 cm(3)/g.
WOS关键词	CHINA CHARACTERISTICS ; SORPTION ISOTHERMS ; BLACK SHALES ; GAS SYSTEMS ; CAPACITY ; EQUATION ; CHALLENGES ; SURFACES ; FIELD
WOS研究方向	Energy & Fuels ; Geology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000430765800009
资助机构	National Nature Science Foundation of China(41402128) ; National Nature Science Foundation of China(41402128) ; Chinese Academy of Sciences(XDB10010103 ; Chinese Academy of Sciences(XDB10010103 ; National Science and Technology Major Project(2016ZX05003002) ; National Science and Technology Major Project(2016ZX05003002) ; Key Laboratory Project of Gansu Province(1309RTSA041) ; Key Laboratory Project of Gansu Province(1309RTSA041) ; Y404RC1LJ) ; Y404RC1LJ) ; National Nature Science Foundation of China(41402128) ; National Nature Science Foundation of China(41402128) ; Chinese Academy of Sciences(XDB10010103 ; Chinese Academy of Sciences(XDB10010103 ; National Science and Technology Major Project(2016ZX05003002) ; National Science and Technology Major Project(2016ZX05003002) ; Key Laboratory Project of Gansu Province(1309RTSA041) ; Key Laboratory Project of Gansu Province(1309RTSA041) ; Y404RC1LJ) ; Y404RC1LJ) ; National Nature Science Foundation of China(41402128) ; National Nature Science Foundation of China(41402128) ; Chinese Academy of Sciences(XDB10010103 ; Chinese Academy of Sciences(XDB10010103 ; National Science and Technology Major Project(2016ZX05003002) ; National Science and Technology Major Project(2016ZX05003002) ; Key Laboratory Project of Gansu Province(1309RTSA041) ; Key Laboratory Project of Gansu Province(1309RTSA041) ; Y404RC1LJ) ; Y404RC1LJ) ; National Nature Science Foundation of China(41402128) ; National Nature Science Foundation of China(41402128) ; Chinese Academy of Sciences(XDB10010103 ; Chinese Academy of Sciences(XDB10010103 ; National Science and Technology Major Project(2016ZX05003002) ; National Science and Technology Major Project(2016ZX05003002) ; Key Laboratory Project of Gansu Province(1309RTSA041) ; Key Laboratory Project of Gansu Province(1309RTSA041) ; Y404RC1LJ) ; Y404RC1LJ)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/88316]
专题	地质与地球物理研究所_兰州油气中心
通讯作者	Zhou, Shixin
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources, Gansu Prov Key Lab Petr Resources Res, Lanzhou, Gansu, Peoples R China 2.Shandong Univ Sci & Technol, Shandong Prov Key Lab Deposit Mineralizat & Sedim, Qingdao, Peoples R China 3.Rhein Westfal TH Aachen, Inst Geol & Geochem Petr & Coal, Aachen, Germany 4.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Li, Jing,Zhou, Shixin,Gaus, Garri,et al. Characterization of methane adsorption on shale and isolated kerogen from the Sichuan Basin under pressure up to 60 MPa: Experimental results and geological implications[J]. INTERNATIONAL JOURNAL OF COAL GEOLOGY,2018,189:83-93.
APA	Li, Jing.,Zhou, Shixin.,Gaus, Garri.,Li, Yuanju.,Ma, Yu.,...&Zhang, Yuhong.(2018).Characterization of methane adsorption on shale and isolated kerogen from the Sichuan Basin under pressure up to 60 MPa: Experimental results and geological implications.INTERNATIONAL JOURNAL OF COAL GEOLOGY,189,83-93.
MLA	Li, Jing,et al."Characterization of methane adsorption on shale and isolated kerogen from the Sichuan Basin under pressure up to 60 MPa: Experimental results and geological implications".INTERNATIONAL JOURNAL OF COAL GEOLOGY 189(2018):83-93.