| Geochemical
characteristics and applications of 18a (H)-neohopanes and 17a (H)-diahopanes |
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| 作者姓名： | Fig. . Variation in CTs/ |
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| 作者单位： | WANG Chunjiang(State Key Laboratory of Organic Geochemistry,Guangzhou Institute of Geochemistry,Chinese Academy of Sciences,Guangzhou 510640,China;Department of Geosciences,Petroleum University,Beijing 102200,China);FU Jiamo,SHENG Guoying(State Key Laboratory of Organic Geochemistry,Guangzhou Institute of Geochemistry,Chinese Academy of Sciences,Guangzhou 510640,China);XIAO Qianhua,LI Jinyou,ZHANG Yali,PIAO Mingzhi(Institute of Petroleum Exploration and Exploitation,Liaohe Bureau of Petroleum Exploration,Panjin 240000,China)
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| 基金项目： | 辽河石油勘探局项目，中国科学院资助项目 |
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| 摘 要： |
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| 收稿时间： | 20 March 2000 |
Geochemical characteristics and applications of 18α(H)-neohopanes and l7α(H)-diahopanes |
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| Fig. . Variation in CTs/.Geochemical
characteristics and applications of 18a (H)-neohopanes and 17a (H)-diahopanes[J].Chinese Science Bulletin,2000,45(19):1742-1748. |
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| Authors: | Chunjiang Wang Jiamo Fu Guoying Sheng Qianhua Xiao Jinyyou Li Yali Zhang Mingzhi Piao |
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| Institution: | (1) State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640 Guangzhou, China;(2) Department of Geosciences, Petroleum University, 102200 Beijing, China;(3) Institute of Petroleum Exploration and Exploitation, Liaohe Bureau of Petroleum Exploration, 240000 Panjin, China |
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| Abstract: | Distributions and geochemical significances of 18α(H)-neohopanes and of 17α(H)-diahopanes in oils from west Xialiaohe depression
of the Bohai Bay Basin have been studied. Relative abundance of 18α(H)-neohopanes and of 17α(H)-diahopanes can be effectively
used as maturity parameters, in a range of medium-high mature stage, based on consideration on sedimentary-organic facies
of source rocks. With a dual geochemical significance of maturity and sedimentary-organic facies, neohopane and diahopane
parameters can be well used in oil-source correlation and in petroleum population division. Formation, primary concentration
and preservation of precursors of rearranged hopanes are closely related to depositional conditions such as Eh-pH and clays
content. A series of probable diahopanes (series D) was detected in the oils, which exhibits a similar distribution pattern
and geochemical behavior as that of 17α(H)-diahopanes (series B). |
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| Keywords: | 18α (H)-neohopane l7α (H)-diahopane maturity sedimentary-organic facies |
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