Control of coal facies to adsorption-desorption divergence of coals: A case from the Xiqu Drainage Area, Gujiao CBM Block, North China

doi:10.1016/j.coal.2017.01.006

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 > 中国科学院油气资源研究重点实验室

	Control of coal facies to adsorption-desorption divergence of coals: A case from the Xiqu Drainage Area, Gujiao CBM Block, North China
	Zhao, Long 1; Qin, Yong 2; Cai, Chunfang 1; Xie, Yiwei 2,3; Wang, Gang 4; Huang, Bo 2; Xu, Chenlu 1
刊名	INTERNATIONAL JOURNAL OF COAL GEOLOGY
	2017-02-15
卷号	171 页码:169-184
关键词	Coal Facies Paleomire Adsorption Desorption Gujiao Block
ISSN号	0166-5162
DOI	10.1016/j.coal.2017.01.006
文献子类	Article
英文摘要	Adsorption and desorption of coal to methane are substantially related to coal facies, referring to the production potential of a coalbed methane (CBM) well. Based on analyses of the stratified channel samples from coal seams No. 2, No. 4 and No. 9 in the Xiqu Drainage Area, Gujiao CBM Block, North China, the relationship between coal facies and adsorption -desorption behaviors was first proposed and discussed. Using the coal facies diagrams suggested by previous investigators, four types of coal facies were distinguished in the coal seams, including the upper delta plain wet forest swamp (I), the lower delta plain fen (II), the lower delta plain marsh (III) and the back barrier low moor (IV). The upper delta plain wet forest swamp occurred dominantly, developing at the bottom and top of all the coal seams. Both the ash yield and groundwater index (GWI) tend to increase from coal facies I to IV, whereas the volatile compounds, fixed carbon, organic sulfur, total sulfur, micropore volume and specific surface area, tissue preservation index (TPI) and vegetation index (VI) decreased, which indicates changes in the vegetation types, water supplements and disturbance, acid -base properties and redox conditions in the paleomires. Paleomire evolution accompanied the rise and drop of the sea level, with a transgression or regression process that could be represented by the coal facies sequence. Coal seams No. 2, No. 4 and No. 9 were discriminated into two, three and two evolving stages, respectively, and these stages were characterized by complete cycles, except stage 4-I from the lower delta plain marsh. Mudstone partings in the coal seams deposited during the highest sea level. Collectively, paleomire environments, especially the variation of vegetation types and mire water condition, result in adsorption and desorption divergences among different coal facies. Arborescent plants decrease from coal facies Ito IV as the hydrodynamic intensity increases, leading to corresponding changes in botanical tissue preservation, mediumoxidizability, mineral content and, ultimately, adsorption and desorption behaviors. In view of the gas content and desorption capacity of the coal layers in the same coal seam, the layers from the upper delta plain wet forest swamp may have the best potential for CBM drainage, followed by those from the lower delta plain fen and marsh, while those from the back barrier low moor may have the worst potential.(C) 2017 Elsevier B.V. All rights reserved.
WOS关键词	DEPOSITIONAL-ENVIRONMENTS ; METHANE SORPTION ; GATES FORMATION ; PEAT FORMATION ; BENUE TROUGH ; NOVA-SCOTIA ; BOWEN BASIN ; CANADA ; PETROLOGY ; PETROGRAPHY
WOS研究方向	Energy & Fuels ; Geology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000395967100013
资助机构	key projects of the National Natural Science Foundation of China(41530314 ; National Science Foundation for Distinguished Young Scholars of China(41125009) ; U1361207) ; key projects of the National Natural Science Foundation of China(41530314 ; National Science Foundation for Distinguished Young Scholars of China(41125009) ; U1361207) ; key projects of the National Natural Science Foundation of China(41530314 ; National Science Foundation for Distinguished Young Scholars of China(41125009) ; U1361207) ; key projects of the National Natural Science Foundation of China(41530314 ; National Science Foundation for Distinguished Young Scholars of China(41125009) ; U1361207)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/53054]
专题	地质与地球物理研究所_中国科学院油气资源研究重点实验室
通讯作者	Qin, Yong
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China 2.China Univ Min & Technol, Key Lab Coalbed Methane Resources & Reservoir For, Minist Educ, Xuzhou 221116, Jiangsu, Peoples R China 3.Xishan Coal Elect Grp Co Ltd, Geol Sect, Taiyuan 030053, Shanxi, Peoples R China 4.Hebei Univ Engn, Sch Earth Sci & Engn, Handan 056038, Hebei, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Long,Qin, Yong,Cai, Chunfang,et al. Control of coal facies to adsorption-desorption divergence of coals: A case from the Xiqu Drainage Area, Gujiao CBM Block, North China[J]. INTERNATIONAL JOURNAL OF COAL GEOLOGY,2017,171:169-184.
APA	Zhao, Long.,Qin, Yong.,Cai, Chunfang.,Xie, Yiwei.,Wang, Gang.,...&Xu, Chenlu.(2017).Control of coal facies to adsorption-desorption divergence of coals: A case from the Xiqu Drainage Area, Gujiao CBM Block, North China.INTERNATIONAL JOURNAL OF COAL GEOLOGY,171,169-184.
MLA	Zhao, Long,et al."Control of coal facies to adsorption-desorption divergence of coals: A case from the Xiqu Drainage Area, Gujiao CBM Block, North China".INTERNATIONAL JOURNAL OF COAL GEOLOGY 171(2017):169-184.