东海盆地西湖凹陷油岩地球化学特征及原油成因来源

苏奥; 陈红汉

doi:10.3799/dqkx.2015.089

Volume 40 Issue 6

Jun. 2015

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Su Ao, Chen Honghan, 2015. Geochemical Characteristics of Oil and Source Rock, Origin and Genesis of Oil in Xihu Depression, East China Sea Basin. Earth Science, 40(6): 1072-1082. doi: 10.3799/dqkx.2015.089

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Su Ao, Chen Honghan, 2015. Geochemical Characteristics of Oil and Source Rock, Origin and Genesis of Oil in Xihu Depression, East China Sea Basin. Earth Science, 40(6): 1072-1082. doi: 10.3799/dqkx.2015.089

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Geochemical Characteristics of Oil and Source Rock, Origin and Genesis of Oil in Xihu Depression, East China Sea Basin

doi: 10.3799/dqkx.2015.089

Su Ao^{1, 2
,},
Chen Honghan^{2
,
,}

1.
Geophysical Research Institute, CNPC Geophysical Company Limited, Zhuozhou072750, China
2.
Key Laboratory of Tectonics and Petroleum Resources, Ministry of Education, China University of Geosciences, Wuhan430074, China

Received Date: 2014-07-23
Publish Date: 2015-06-15

Abstract

Abstract

There are plenty of oil in Xihu depression of East China Sea basin, however, few scholars pay attention to the origin and genesis of oil. The samples of source rocks and oil were measured by gas chromatography and Fourier transform infrared spectroscopy (FTIR), and the origin of oil and genesis of condensate and high-wax light oil are discussed based on the analysis of geochemical characteristics. The results suggest that coal measure source rocks of the Pinghu Formation are at the mature stage of thermal evolution. Carbonaceous mudstone and coal mainly came from terrestrial organism, with kerogen type Ⅲ. Dark mudstone mainly came from both terrestrial organism and aquatic organism, with kerogen type Ⅱ-Ⅲ. Genetic potential of carbonaceous mudstone and coal is significantly higher than that of mudstone. The crude oil is mainly divided into condensate with low density and wax and high-wax light oil, and light hydrocarbon displays obvious different compositions. Most of the oil is of humic type with some oil being both humic and sapropelic. Oil is at the medium mature stage. Most oil is derived from carbonaceous mudstone and coal in the Pinghu Formation, whereas only a small amount of oil is derived from dark mudstone. Physical properties of condensate and light oil and their difference of light hydrocarbon composition are unrelated with source rocks. Condensate was produced under the evaporation fractionation effect and from the oil which had been generated from the kerogen at the mature stage. High-wax light oil is residual oil from evaporation fractionation effect, and some oil has experienced mixing.
- Xihu depression,
- geochemistry,
- origin,
- genesis,
- petroleum geology

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References(44)

References

Connan, J., Cassou, A.M., 1980. Properties of Gases and Petroleum Liquids Derived from Terrestrial Kerogen at Various Maturation Levels. Geochimica et Cosmochimica Acta, 44(1): 1-23. doi: 10.1016/0016-7037(80)90173-8

Chen, J.P., Huang, D.P., Li, J.C., et al., 1999. The Petroleum Generation Model for Organic Matter from Jurassic Coal Measure, Northwest China. Geochimica, 28(4): 327-339 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-DQHX199904003.htm

Fu, N., Li, Y.C., Chen, G.H., et al., 2003. Pooling Mechanisms of "Evaporating Fractionation" of Oil and Gas in the Xihu Depression, East China Sea. Petroleum Exploration and Development, 30(2): 39-42 (in Chinese with English abstract). http://www.zhangqiaokeyan.com/academic-journal-cn_petroleum-exploration-development_thesis/0201218207521.html

Ganz, H.H., Kalkreuth, W., 1991. IR Classification of Kerogen Type, Thermal Maturation, Hydrocarbon Potential and Lithological Characteristics. Journal of Southeast Asian Earth Sciences, 5(1): 19-28. doi: 10.1016/0743-9547(91)90007-K

Gong, D.Y., Li, M., Li, Q.M., et al., 2014. Geochemical Characteristics and Origins of the Oils in Wushi Sag, Tarim Basin. Natural Gas Geoscience, 25(1): 62-69 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-TDKX201401009.htm

Hou, Q.J., Feng, Z.H., Huo, Q.L., 2004. Oil Migration Model and Entrapment Epoch of North Wuerxun Depression in Hailaer Basin. Earth Science—Journal of China University of Geosciences, 29(4): 397-403 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-DQKX200404003.htm

Jia, J.Y., Xu, X.H., Sun, B.Q., 2000. Oil/Gas Geochemical Characters in the Xihu Trongh of the East China Sea. Offshore Oil, 20(2): 1-7 (in Chinese with English abstract).

Kissin, Y., 1987. Catagenesis and Composition of Petroleum: Origin of N-Alkanes and Isoalkanes in Petroleum Crude Oils. Geochimica et Cosmochimica Acta, 51: 2445-2457. doi: 10.1016/0016-7037(87)90296-1

Lei, C., Ye, J.R., Wu, J.F. et al., 2014. Dynamic Process of Hydrocarbon Accumulation in Low-Exploration Basins: A Case Study of Xihu Depression. Earth Science—Journal of China University of Geosciences, 39(7): 837-847 (in Chinese with English abstract). doi: 10.3799/dqkx.2014.078

Li, X.Q., Zhong, N.N., Xiong, B., et al., 1997. A Study on Coal Series Source Rock Organic Geothermal Evolution of Xihu Sag. Coal Geology of China, 9(1): 33-36 (in Chinese with English abstract). http://www.researchgate.net/publication/313707800_A_Study_on_Coal_Series_Source_Rock_Organic_Geothermal_Evolution_of_Xihu_Sag

Li, Y., Wang, Y.P., Zhao, C.Y., et al., 2013. The FTIR Study on Structure Changes of Coal Kerogen in the Maturation Process. Bulletin of Mineralogy, Petrology and Geochemistry, 32(1): 97-101 (in Chinese with English abstract). http://d.wanfangdata.com.cn/Periodical/kwysdqhxtb201301008

Lu, S.F., Zhang, M., Zhong, N.N., 2007. Oil and Gas Geochemistry. Petroleum Industry Press, Beijing (in Chinese).

Lu, S.N., Zhang, G., 1994. A New Genesis Mode of Condensate. Science in China (Series B), 24(1): 81-86 (in Chinese).

Ma, K.Y., Fan, P., 1995. Geochemical Evidence of Evaporation Fractionation Condensate of Sha18 Well in Northern Tarim Basin. Chinese Science Bulletin, 40(19): 1785-1787 (in Chinese). doi: 10.1360/csb1995-40-19-1785

Mango, F.D. 1990. The Origin of Light Hydrocarbons in Petroleum: A Kinetic Test of the Steady-State Catalytic Hypothesis. Geochimica et Cosmochimica Acta, 54(5): 1315-1323. doi: 10.1016/0016-7037(90)90156-F

Mukhopadhyay, P.K., Dow, W.G., 1994. Vitrinite Reflectance as a Maturity Parameter: Applications and limitations. American Chemical Society, Washington D.C..

Snowdon, L.R., Powell, T.G., 1982. Immature Oil and Condensate: Modification of Hydrocarbon Generation Model for Terrestrial Organic Matter. AAPG Bulletin, 66(6): 775-788. http://www.researchgate.net/publication/216539208_Immature_oil_and_condensate_-_Modification_of_hydrocarbon_generation_model_for_terrestrial_organic_matter

Su, A., Chen, H.H., Wang, C.W., et al., 2013. Genesis and Maturity Identification of Oil and Gas in the Xihu Sag, East China Sea Basin. Petroleum Exploration and Development, 40(5): 521-527 (in Chinese with English abstract). http://d.wanfangdata.com.cn/Periodical/syktykf201305002

Su, A., Chen, H.H., Wang, C.W., et al., 2014. Source of Natural Gas in Xihu Depression of the East China Sea Basin. Geological Science and Technology Information, 33(1): 157-162 (in Chinese with English abstract). http://www.en.cnki.com.cn/Article_en/CJFDTotal-DZKQ201401025.htm

Thompson, K., 1987. Gas Condensate Migration and Oil Fractionation in Deltaic Systems. Marine and Petroleum Geology, 5(3): 237-246. doi: 10.1016/0264-8172(88)90004-9

Tissot, B.P., Welte, D.H., 1978. Petroleum Formation and Occurrence. Springer, Berlin.

Yang, C.P., Geng, A.S., Liao, Z.W., et al., 2009. Quantitative Gas Washing Evaluation on Reservoirs in Tazhong Area of Tarim Basin. Science in China (Series D), 39(1): 51-60 (in Chinese). http://en.cnki.com.cn/Article_en/CJFDTOTAL-TDKX200905010.htm

Zhang, G.C., Miao, S.D., Chen, Y., et al., 2013. Distribution of Gas Enrichment Regions Controlled by Source Rocks and Geothermal Heat in China Offshore Basins. Natural Gas Industry, 33(4): 1-17 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-TRQG201304002.htm

Zhang, S.C., 2000. The Migration Fractionation: An Important Mechanism in the Formation of Condensate and Waxy Oil. Chinese Science Bulletin, 45(6): 667-670 (in Chinese). doi: 10.1360/csb2000-45-6-667

Zhang, Z.H., Huang, Z.L., Zhang, Z.Y., et al., 2004. Geochemical Characteristics and Origin of High-Wax Condensate and High-Gravity Oil in the Western Turpan-Hami Basin. Acta Geologica Sinica, 78(4): 551-559 (in Chinese with English abstract). http://www.researchgate.net/publication/286315039_Geochemical_characteristics_and_origin_of_high-wax_condensate_and_high-gravity_oil_in_the_western_Turpan_-_Hami_Basin

Zhu, Y.M., Zhou, J., Gu, S.X., et al., 2012. Molecular Geochemistry of Eocene Pinghu Formation Coal-Bearing Source Rocks in the Xihu Depression, East China Sea Shelf Basin. Acta Petrolei Sinica, 33(1): 32-39 (in Chinese with English abstract). http://www.researchgate.net/publication/286062882_Molecular_geochemistry_of_Eocene_Pinghu_Formation_coal-bearing_source_rocks_in_the_Xihu_Depression_East_China_Sea_Shelf_Basin

陈建平, 黄第藩, 李晋超, 等, 1999. 西北地区侏罗纪煤系有机质成烃模式. 地球化学, 28(4): 327-339. doi: 10.3321/j.issn:0379-1726.1999.04.003

傅宁, 李友川, 陈桂华, 等, 2003. 东海西湖凹陷油气"蒸发分馏"成藏机制. 石油勘探与开发, 2: 39-42. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK200302012.htm

龚德瑜, 李明, 李启明, 等, 2014. 塔里木盆地乌什凹陷原油地球化学特征及油源分析. 天然气地球科学, 25(1): 62-69. https://www.cnki.com.cn/Article/CJFDTOTAL-TDKX201401009.htm

侯启军, 冯子辉, 霍秋立, 2004. 海拉尔盆地乌尔逊凹陷石油运移模式与成藏期. 地球科学——中国地质大学学报, 29(4): 397-403. https://www.cnki.com.cn/Article/CJFDTOTAL-DQKX200404003.htm

贾健谊, 须雪豪, 孙伯强, 2000. 东海西湖凹陷原油与天然气的地球化学特征. 海洋石油, 20(2): 1-7. https://www.cnki.com.cn/Article/CJFDTOTAL-HYSY200002000.htm

雷闯, 叶加仁, 吴景富, 等, 2014. 低勘探程度盆地成藏动力学过程: 以西湖凹陷中部地区为例. 地球科学——中国地质大学学报, 39(7): 837-847. https://www.cnki.com.cn/Article/CJFDTOTAL-DQKX201407006.htm

李贤庆, 钟宁宁, 熊波, 等, 1997. 西湖凹陷煤系源岩的有机质热演化研究. 中国煤田地质, 9(1): 33-36. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGMT701.009.htm

李岩, 王云鹏, 赵长毅, 等, 2013. 煤中干酪根在热演化中结构变化的红外光谱研究. 矿物岩石地球化学通报, 32(1): 97-101. doi: 10.3969/j.issn.1007-2802.2013.01.008

卢双舫, 张敏, 钟宁宁, 2007. 油气地球化学. 北京: 石油工业出版社.

卢松年, 张刚, 1994. 一种新的凝析油形成模式. 中国科学(B辑), 24(1): 81-86. https://www.cnki.com.cn/Article/CJFDTOTAL-JBXK199401012.htm

马柯阳, 范璞, 1995. 塔北沙18井石炭系蒸发分馏成因凝析油确认的地球化学证据. 科学通报, 40(19): 1785-1787. doi: 10.3321/j.issn:0023-074X.1995.19.015

苏奥, 陈红汉, 王存武, 等, 2013. 东海盆地西湖凹陷油气成因及成熟度判别. 石油勘探与开发, 40(5): 521-527. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK201305003.htm

苏奥, 陈红汉, 王存武, 等, 2014. 东海盆地西湖凹陷天然气来源探讨. 地质科技情报, 33(1): 157-162. https://www.cnki.com.cn/Article/CJFDTOTAL-DZKQ201401025.htm

杨楚鹏, 耿安松, 廖泽文, 等, 2009. 塔里木盆地塔中地区油藏气侵定量评价. 中国科学(D辑), 39(1): 51- 60. https://www.cnki.com.cn/Article/CJFDTOTAL-JDXK200901005.htm

张功成, 苗顺德, 陈莹, 等, 2013. "源热共控"中国近海天然气富集区分布. 天然气工业, 33(4): 1-17. https://www.cnki.com.cn/Article/CJFDTOTAL-TRQG201304002.htm

张水昌, 2000. 运移分馏作用: 凝析油和蜡质油形成的一种重要机制. 科学通报, 45(6): 667-670. doi: 10.3321/j.issn:0023-074X.2000.06.024

张枝焕, 黄志龙, 张振英, 等, 2004. 吐哈盆地西部地区高蜡凝析油和轻质油的地球化学特征及成因分析. 地质学报, 78(4): 551-559. doi: 10.3321/j.issn:0001-5717.2004.04.015

朱扬明, 周洁, 顾圣啸, 等, 2012. 西湖凹陷始新统平湖组煤系烃源岩分子地球化学特征. 石油学报, 33(1): 32-39. https://www.cnki.com.cn/Article/CJFDTOTAL-SYXB201201003.htm

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Geochemical Characteristics of Oil and Source Rock, Origin and Genesis of Oil in Xihu Depression, East China Sea Basin

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