Oil Cracking of Deep Petroleum in Minfeng Sag in North Dongying Depression, Bohai Bay Basin, China: Evidence from Natural Fluid Inclusions

doi:10.1007/s12583-010-0107-z

	Oil Cracking of Deep Petroleum in Minfeng Sag in North Dongying Depression, Bohai Bay Basin, China: Evidence from Natural Fluid Inclusions
	Ping Hongwei 1,2; Chen Honghan 1,2,3; Song Guoqi 4; Liu Huimin 4
刊名	JOURNAL OF EARTH SCIENCE
	2010-08-01
卷号	21 期号:4 页码:455-470
关键词	Oil Cracking Fluid Inclusion Homogenization Temperature Fluorescence Bitumen Pyrobitumen Natural Gas Dongying Depression
ISSN号	1674-487X
DOI	10.1007/s12583-010-0107-z
文献子类	Article
英文摘要	A fluid inclusion fluorescence and microthermometric study was performed on sandstones from the deep Es(4) reservoir rocks of the Minfeng ((sic)) sag, north of Dongying ((sic)) depression. Two types of oil inclusions (yellow and blue white fluorescence), one type of gas inclusions (blue white fluorescence), and bitumen inclusions (no fluorescence) were detected within quartz and feldspar minerals. The evolution of hydrocarbon fluid inclusions in the lower Es(4) sequence indicates that present oil accumulation was predominantly thermal stress controlled. Homogenization temperatures of aqueous fluid inclusions coexisting with gas-bearing and bitumen-bearing fluid inclusions indicate that oil cracking occurred at temperatures up to 160 degrees C, primary condensate or wet gas generation occurred during 170-195 degrees C. Oil has cracked into condensate or wet gas in the depth of 4 300 - 4 410 m and dry gas and abundant pyrobitumen in the depth of more than 4 410 m in the geological history based on the fluid inclusion extrapolation. Secondary oil cracking is undergoing in present day when the depth of reservoir is more than 4 150 m whose temperature is the threshold temperature of oil cracking (160 degrees C). However, because of the consumption of oil in the first oil cracking process, it may have few chances to find liquid petroleum, and only natural gas can be found when the depth of reservoir is more than 4 410 m, where oil cracks into condensate gas or wet gas according to present-day formation temperature. This study is preliminary but foreshadows a new insight into oil cracking using natural fluid inclusions to trace hydrocarbon evolution in sedimentary basins.
WOS关键词	DIAMOND-ANVIL CELL ; SOLID BITUMENS ; WESTERN CANADA ; FLUORESCENCE MICROSCOPY ; THERMAL-MATURATION ; CRUDE OILS ; GAS ; RESERVOIR ; HYDROCARBONS ; SEDIMENTARY
WOS研究方向	Geology
语种	英语
出版者	CHINA UNIV GEOSCIENCES
WOS记录号	WOS:000280523200008
资助机构	National Natural Science Foundation of China(40372068) ; National Natural Science Foundation of China(40372068) ; National Natural Science Foundation of China(40372068) ; National Natural Science Foundation of China(40372068) ; National Natural Science Foundation of China(40372068) ; National Natural Science Foundation of China(40372068) ; National Natural Science Foundation of China(40372068) ; National Natural Science Foundation of China(40372068)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/72838]
专题	中国科学院地质与地球物理研究所
通讯作者	Ping Hongwei
作者单位	1.China Univ Geosci, Minist Educ, Key Lab Tecton & Petr Resources, Wuhan 430074, Peoples R China 2.China Univ Geosci, Fac Earth Resources, Wuhan 430074, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 4.Shengli Oilfield Ltd, SINOPEC, Dongying 257015, Peoples R China
推荐引用方式 GB/T 7714	Ping Hongwei,Chen Honghan,Song Guoqi,et al. Oil Cracking of Deep Petroleum in Minfeng Sag in North Dongying Depression, Bohai Bay Basin, China: Evidence from Natural Fluid Inclusions[J]. JOURNAL OF EARTH SCIENCE,2010,21(4):455-470.
APA	Ping Hongwei,Chen Honghan,Song Guoqi,&Liu Huimin.(2010).Oil Cracking of Deep Petroleum in Minfeng Sag in North Dongying Depression, Bohai Bay Basin, China: Evidence from Natural Fluid Inclusions.JOURNAL OF EARTH SCIENCE,21(4),455-470.
MLA	Ping Hongwei,et al."Oil Cracking of Deep Petroleum in Minfeng Sag in North Dongying Depression, Bohai Bay Basin, China: Evidence from Natural Fluid Inclusions".JOURNAL OF EARTH SCIENCE 21.4(2010):455-470.