| The Occurrence of Oleananes in the Beibuwan Basin and Its Application to the Study of Maturity and Oil-Source Rock Correlation |
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| 作者单位： | LI Meijun WANG Tieguan State Key Laboratory of Petroleum Resource and Prospecting，Earth Sciences and Geoinformatics School，China University of Petroleum，Beijing 102249，China LIU Ju ZHANG Meizhu MA Qinglin GAO Lihui Southern Oil Exploration and Development Company，PetroChina，Guangzhou 510640，China LU Hong Guangzhou Institute of Geochemistry，Chinese Academy of Sciences，Guangzhou 510240，China |
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| 基金项目： | 国家自然科学基金，中国石油天然气集团公司资助项目，The ESS-China Hydrocarbon Geosciences Collaboration Project under Natural Resources Canada's International Opportunities Program |
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| 摘 要： | The oleanane parameter, i.e., OP （oleananes/（oleananes＋C30hopanes）） in the two sedimentary columns of the Beibuwan Basin, South China Sea, can be used to delimit the top of oil generation window, with Ro （/%） of 0.53 in Well M1 and 0.55 in Wells H1/Hd1/Hd2, respectively. Comparing with vitrinite reflectance （Ro/%）, the OP features a dynamic range and can indicate the oil generation window more precisely. By using OP and other geochemical indices, the oil-source correlation is also conducted. It suggests that the oils in wells M1 and M2 are derived from the source rocks in situ. The mudstone in Huachang uplift is not the main source rocks for oils in this area, The OP is also a useful oil-source correlation parameter in some Tertiary lacustrine basins.
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| 关 键 词： | 油源岩 油气勘探 生物标志 沉积物 |
The Occurrence of Oleananes in the Beibuwan Basin and Its Application to the Study of Maturity and Oil-Source Rock Correlation |
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| Authors: | LI Meijun WANG Tieguan State Key Laboratory of Petroleum Resource and Prospecting Earth Sciences and Geoinformatics School China University of Petroleum Beijing China LIU Ju ZHANG Meizhu MA Qinglin GAO Lihui Southern Oil Exploration and Development Company PetroChina Guangzhou China LU Hong Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou China |
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| Institution: | [1]State Key Laboratory of Petroleum Resource and Prospecting, Earth Sciences and Geoinformatics School, China University of Petroleum, Beijing 102249, China [2]Southern Oil Exploration and Development Company, PetroChina, Guangzhou 510640, China [3]Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510240, China |
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| Abstract: | The oleanane parameter, i.e., OP (oleananes/(oleananes C30hopanes)) in the two sedimentary columns of the Beibuwan Basin, South China Sea, can be used to delimit the top of oil generation window, with Ro (/%) of 0.53 in Well MI and 0.55 in Wells H1/Hd1/Hd2, respectively. Comparing with vitrinite reflectance (R0/%), the OP features a dynamic range and can indicate the oil generation window more precisely. By using OP and other geochemical indices, the oil-source correlation is also conducted. It suggests that the oils in wells M1 and M2 are derived from the source rocks in situ. The mudstone in Huachang uplift is not the main source rocks for otis in this area. The OP is also a useful oil-source correlation parameter in some Tertiary lacustrine basins. |
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| Keywords: | oleanane parameter (OP) biomarker maturity oil-source correlation Fnshan Depression |
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