Research progress in studies on the coalbed gas geochemistry

	Research progress in studies on the coalbed gas geochemistry
	Tao, MX
刊名	PROGRESS IN NATURAL SCIENCE
	2006-03-01
卷号	16 期号:3 页码:215-220
关键词	Coalbed Gas Geochemistry Isotopic Composition Genetic Type Novel Resource
ISSN号	1002-0071
英文摘要	The current situation of geochemical studies on coalbed gas is reviewed in this paper. Generally, coalbed gas is compositionally dominated by methane with delta C-13(1) values ranging approximately from -80 parts per thousand to -10 parts per thousand. However, few isotopic studies have been carried out on other components of coalbed gas except for hydrogen and carbon dioxide, whose delta D-CH4 values available for utilization vary from -333 parts per thousand to -117 parts per thousand, and delta C-13(CO2) values from -29.4 parts per thousand to + 18.6 parts per thousand. Two major types of coalbed gas, thermogenic gas and secondary biogenic gas, have been identified, and there are also some other classification criteria. Compared with conventional natural gases, coalbed gas has a wide distribution range of delta C-13(1) and delta C-13(CO2) values, especially possessing some extremely heavy values. Current problems that remain unsolved in the coalbed gas geochemistry include the variation mechanism, controlling factors and application of carbon and hydrogen isotopes of methane, the relation between the values of delta C-13(1) and Ro, the systematic classification scheme and criterion of genetic types, and the application of the coalbed gas geochemistry in evaluating target districts of the coalbed gas exploration.
语种	英语
出版者	TAYLOR & FRANCIS LTD
WOS记录号	WOS:000236814200001
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/66152]
专题	中国科学院地质与地球物理研究所
通讯作者	Tao, MX
作者单位	1.Chinese Acad Sci, Key Lab Gas Geochem, Inst Geol & Geophys, Lanzhou 730000, Peoples R China 2.Beijing Normal Univ, Coll Resources Sci & Technol, Beijing 100875, Peoples R China
推荐引用方式 GB/T 7714	Tao, MX. Research progress in studies on the coalbed gas geochemistry[J]. PROGRESS IN NATURAL SCIENCE,2006,16(3):215-220.
APA	Tao, MX.(2006).Research progress in studies on the coalbed gas geochemistry.PROGRESS IN NATURAL SCIENCE,16(3),215-220.
MLA	Tao, MX."Research progress in studies on the coalbed gas geochemistry".PROGRESS IN NATURAL SCIENCE 16.3(2006):215-220.