Recent developments in study of the typical superimposed basins and petroleum accumulation in China: Exemplified by the Tarim Basin

doi:10.1360/04zd0020

	Recent developments in study of the typical superimposed basins and petroleum accumulation in China: Exemplified by the Tarim Basin
	Jin, ZJ ; Wang, QC
刊名	SCIENCE IN CHINA SERIES D-EARTH SCIENCES
	2004-09-01
卷号	47 页码:1-15
关键词	superimposed basin Tarim Basin basin formation hydrocarbon generation petroleum accumulation
ISSN号	1006-9313
DOI	10.1360/04zd0020
文献子类	Article
英文摘要	Most of petroliferous sedimentary basins in China have experienced multiple phases of tectonic evolution and deposition, and are characterized by tectonic and depositional superimposition. The term "superimposed basin" is suggested to describe those basins which consist of two or more simple prototype basins superimposing vertically and/or coalescing laterally. The characteristics of petroliferous superimposed basins are "multiple stages of basin forming and reworking, multiple layers of source rocks, multiple periods of hydrocarbon generation and expulsion, multiple periods of petroleum migration-accumulation-escape". Therefore, applying the wave process analysis method to studying the process of basin formation, hydrocarbon generation, and reservoir formation, and then establishing theory of "petroleum accumulation system" is helpful to enhancing petroleum exploration efficiency in superimposed basins. This paper will, based on case study in the Tarim basin, report the major developments in studying basin formation, hydrocarbon generation and petroleum accumulation. In study of basin formation, (1) geophysical comprehensive profiles reveal that the Tarim plate has been subducted beneath the Tianshan orogenic belt with an interfinger structure and that the deep structure in the eastern section of the Tianshan orogenic belt is different from that in the western section. (2) The vertical variation in debris and geochemical composition reveals the nature and Mesozoic-Cenozoic evolution history of the Kuqa Depression. (3) Field investigation and paleostress reconstruction show that the Kuqa Depression has undergone gravity-driven extension in sedimentary cover when the Tianshan uplifted vertically. In hydrocarbon generation study, new developments include (1) setting environmental index to judge high grade source rocks in marine carbonates, and (2) establishing the lower limit of the organic carbon content for effective carbonate source rocks. In petroleum accumulation study, (1) methods of determining paleopressure and paleotemperature of forming fluid inclusions have been established. (2) The petroleum source analysis has indicated that the crude oil in the Lunnan and Tahe oilfields are derived from the source rocks of the Middle and Upper Ordovician. (3) Three generations of oil inclusions from the Lunnan oilfield have been recognized and dated.
WOS研究方向	Geology
语种	英语
出版者	SCIENCE CHINA PRESS
WOS记录号	WOS:000225775100001
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/79503]
专题	中国科学院地质与地球物理研究所
通讯作者	Jin, ZJ
作者单位	1.SinoPec Corp, Acad Petr Explorat & Exploitat, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Jin, ZJ,Wang, QC. Recent developments in study of the typical superimposed basins and petroleum accumulation in China: Exemplified by the Tarim Basin[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2004,47:1-15.
APA	Jin, ZJ,&Wang, QC.(2004).Recent developments in study of the typical superimposed basins and petroleum accumulation in China: Exemplified by the Tarim Basin.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,47,1-15.
MLA	Jin, ZJ,et al."Recent developments in study of the typical superimposed basins and petroleum accumulation in China: Exemplified by the Tarim Basin".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 47(2004):1-15.