Geochemical Characteristics of Crude Oil and Oil-Source Correlation in the Western Fushan Depression
-
摘要: 福山凹陷是北部湾盆地的重要含油气单元，是一个“小而肥”的富生烃凹陷.充分利用烃源岩和原油的有机地球化学等分析测试数据，针对凹陷内研究较少的西部地区的原油进行地化特征分析，进而研究该区油气藏的油源.研究结果显示凹陷西部原油主要为轻质油，族组分以高饱和烃和芳烃含量、低非烃+沥青质含量为特点.凹陷西部的原油生油母质为陆源高等植物和低等水生生物的混合来源，为陆相湖盆混合型母质特征，不同区块不同层段原油的生油母质具有一定的差别.研究区生油母质沉积环境为偏淡水氧化沉积环境的湖沼相，结合原油成熟度，可将研究区原油划分为3类：(1) 美台-红光流三上段原油，具有“中等成熟度，低奥利烷含量”特征；(2) 永安流一上段原油，具有“高成熟度，高奥利烷含量”特征；(3) 朝阳流一上段原油，具有“低成熟度，中等奥利烷含量”特征.进一步油源对比结果显示，美台-红光地区流三段原油来自流三段和流二下段烃源岩，而永安地区的流一段烃源岩为永安地区的原油提供油源.Abstract: Fushan depression is a small and resource-rich petroltferous depression, and becomes one of the significant petroleum units in Beibuwan Basin. Making full use of organic geochemical data from source rock and oil, the paper focuses on the geochemical characteristics of crude oil in the western Fushan depression which few documents mentioned, and probes into the source of typical reservoirs. It is shown that the petroleum is mainly light oil with high content of saturated hydrocarbon and aromatic and low content of asphaltene and non-hydrocarbon matter. The kerogen is made up of terrestrial higher plants mixed with lower aquatic organisms, and is typical of the hybrid sources just as that of continental basin. The feature of kerogen from different area and layers are diversity. The sedimentary environment is partial oxidation and freshwater lacustrine. Combined with maturity of petroleum, the crude oil can be classified as three categories. The first class of oil is characteristic of medium maturity and low content of Ol occurred in the upper part of Third Member of Liushagang Formation (Els3). The second class is found in upper part of First Member in Liushanggang Formation (Els1) in Yong'an area, with high maturity and high content of Oleane (Ol). The third class also comes from upper part of Els1 in Chaoyang area, and its maturity is low with the medium content of Ol. Further studies on the oil-source correlation indicated that the oil in Els3 originates from the source rock in the Els3 and lower part of Els2 in Meitai and Hongguang area, and the source rock from Els1 in Yong'an area is the main oil source for the oil in Els1.
-
Key words:
- Fushan depression /
- Liushagang Formation /
- crude oil /
- biomarker /
- oil-source correlation /
- petroleum geology
-
图 1 北部湾盆地福山凹陷构造格架及岩性柱状图
a.构造格架；b.岩性柱状图
Fig. 1. The tectonic framework and lithological column of Fushan depression in Beibuwan basin
图 2 福山凹陷西部地区原油饱和烃的气相色谱(TIC)以及m/z 191和217质谱图
Fig. 2. The gas chromatograms and m/z 191 and 217 mass fragmentograms of saturated hydrocarbon in crude oil from the western Fushan depression
图 3 福山凹陷西部地区原油C27-C28-C29 R规则甾烷三角图
Fig. 3. The triangle diagram of C27-C28-C29 R regular steranes of crude oil in the western Fushan depression
图 4 福山凹陷西部地区原油生标参数相关图
Fig. 4. The biomarker correlation of crude oil in the western Fushan depression
图 5 美台地区M1井油-源的生物标志化合物分布谱图
Fig. 5. The spectrum of biomarker of oil and exctracted oil from well M1 in Meitai area
图 6 美台-红光地区生标参数油-源对比
Fig. 6. The oil and source correlation by biomarker parameters in the Meitai and Hongguang area
图 7 美台-红光地区原油和源岩抽提物的族组分碳同位素δ13C值分布
Fig. 7. The distribution of carbon isotope of family component in oil and extracted oil from Meitai and Hongguang area
图 8 永安地区油-源的生物标志物分布图谱
Fig. 8. The spectrum of biomarker of oil and source rock from Yong'an area
图 9 永安地区原油和源岩抽提物的族组分碳同位素δ13C值分布
Fig. 9. The distribution of carbon isotope of family component in oil and extracted oil from Yong'an area
表 1 福山凹陷西部地区原油物性及族组分统计
Table 1. The physical property and component of crude oil in the western Fushan depression
地区 井号 深度(m) 层位 比重
(20℃)粘度
(cp)凝固点
(℃)含硫
(%)含蜡
(%)饱和烃
(%)芳烃
(%)沥+非烃
(%)饱芳比 永安 A1 2 952.0~2 994.0 Els1上 0.82 2.05 19.00 0.04 / 82.16 12.03 5.81 6.83 A2 3 081.2~3 019.2 Els1上 0.80 1.27 9.00 0.06 6.98 83.33 12.56 4.10 6.63 朝阳 C1 2 466.6~2 525.4 Els1上 / / / / / 77.84 13.40 8.76 5.81 C2 2 498.2~2 509.0 Els1上 0.84 5.33 30.00 0.10 4.80 76.06 14.40 9.53 5.28 F1 2 605.0~2 698.2 Els1上 0.84 4.21 28.00 0.13 3.60 76.76 16.22 7.03 4.73 美台 T1 3 084.0~3 086.0 Els3上 0.83 3.32 26.00 0.32 13.49 73.30 15.34 11.36 4.78 T2 3 011.8~3 047.6 Els3上 0.84 7.31 27.80 0.09 21.67 72.39 19.02 8.59 3.81 T4 3 208.2~3 275.8 Els3上 0.82 2.44 29.00 0.09 15.05 67.72 12.17 20.11 5.56 T4-1 3 459.6~3 493.4 Els3上 0.84 7.04 35.00 0.07 2.20 81.94 11.81 6.25 6.94 T5-1 3 150.0~3 160.1 Els3上 / / / / / 81.79 10.33 7.88 7.92 T5 3 217.3~3 219.0 Els3上 / / / / / 83.96 9.80 6.24 8.57 T6X 2 628.2~2 631.0 Els3上 / / / / / 82.89 11.09 6.02 7.47 红光 G5 2 725.4~2 775.0 Els3上 0.81 1.71 18.00 0.06 5.60 84.02 8.98 7.00 9.36 G3X 2 504.0~2 513.4 Els3上 0.81 / 21.00 0.04 8.66 79.62 14.63 5.75 5.44 G5-1 2 725.4~2 775.0 Els3上 0.83 / / 0.11 9.53 77.48 7.34 15.19 10.56 
下载: 导出CSV
表 2 山凹陷西部地区原油生物标志物参数
Table 2. The biomarker parameters of oil in the western Fushan depression
地区 井位 深度(m) 层位 Pr/
PhPr/
nC17Ph/
nC18C21-/
C22+CPI OEP C27-
ααα-RC28-
ααα-RC29-
ααα-RC29R/
C27RC29ββ/
(αα+ββ)C29S/
(R+S)Ts/
(Ts+Tm)C29Ts/
(C29Ts+C29H)C30DH/
C30HOl/
C30HGa/
C30HC29H/
C30H永安 A1 2 952.0~2 994.0 Els1上 3.46 0.56 0.18 0.44 1.20 1.21 0.25 0.25 0.50 2.00 0.48 0.54 0.62 0.31 0.18 0.59 0.03 0.51 A2 3 081.2~3 019.2 Els1上 3.97 0.51 0.16 / 1.15 / 0.25 0.18 0.57 2.28 0.48 0.42 0.50 0.27 0.19 0.70 0.06 0.51 朝阳 C1 2 466.6~2 525.4 Els1上 3.69 0.88 0.25 1.00 1.23 1.05 0.42 0.22 0.36 0.86 0.4 0.23 0.47 0.27 0.08 0.19 0.06 0.52 C2 2 498.2~2 509.0 Els1上 1.13 0.21 0.21 0.72 1.05 1.07 0.44 0.20 0.37 0.84 0.38 0.33 0.53 0.30 0.11 0.40 0.06 0.50 F1 2 605.0~2 698.2 Els1上 3.45 0.78 0.26 0.46 1.24 / 0.37 0.11 0.52 1.41 0.3 0.46 0.51 0.29 0.11 0.38 0.02 0.46 美台 T1 3 084.0~3 086.0 Els3上 3.45 0.68 0.21 0.74 1.22 / 0.33 0.12 0.55 1.39 0.34 0.62 0.58 0.36 0.15 0.11 0.13 0.57 T2 3 011.8~3 047.6 Els3上 3.68 0.60 0.19 0.88 1.22 / 0.35 0.16 0.49 1.67 0.33 0.52 0.58 0.34 0.14 0.11 0.14 0.59 T4 3 208.2~3 275.8 Els3上 17.49 0.48 0.03 4.25 1.21 1.19 0.34 0.18 0.48 1.41 0.41 0.56 0.46 0.53 0.13 0.08 0.09 0.39 T4-1 3 459.6~3 493.4 Els3上 3.99 0.80 0.20 0.62 1.19 1.36 0.46 0.24 0.34 0.74 0.48 0.46 0.58 0.42 0.24 0.18 0.11 0.65 T5 3 217.3~3 219.0 Els3上 4.06 0.60 0.16 0.96 1.17 1.46 0.39 0.21 0.41 1.05 0.43 0.55 0.60 0.41 0.21 0.16 0.03 0.65 T5-1X 3 150.0~3 212.2 Els3上 10.06 0.47 0.05 4.12 1.15 1.13 0.13 0.14 0.73 5.42 0.41 0.53 0.62 0.36 0.23 0.16 0.03 0.57 T6X 2 628.2~2 631.0 Els3上 4.24 0.61 0.15 0.97 1.17 1.43 0.42 0.21 0.40 0.95 0.47 0.45 0.58 0.40 0.22 0.19 0.13 0.67 红光 G5 2 628.2~2 631.0 Els3上 4.35 0.46 0.11 1.28 1.13 / 0.41 0.23 0.36 0.90 0.48 0.47 0.70 0.42 0.35 0.29 0.13 0.41 G3X 2 725.4~2 775.0 Els3上 4.64 0.58 0.13 1.06 1.16 / 0.39 0.21 0.41 1.05 0.50 0.42 0.58 0.43 0.24 0.23 0.12 0.56 G5-1 2 504.0~2 513.4 Els3上 4.38 0.72 0.19 1.51 1.21 / 0.45 0.19 0.35 0.78 0.47 0.40 0.61 0.46 0.25 0.19 0.10 0.52
下载: 导出CSV
-
Chakhmakhchev, A., Suzuki, M., Takayama, K., 1997.Distribution of Alkylated Dibenzothiophenes in Petroleum as a Tool for Maturity Assessments.Organic Geochemistry, 26(7-8):483-489.doi: 10.1016/s0146-6380(97)00022-3 Ding, W.X., Wang, W.J., Ma, Y.J., 2003.The Petroleum Systems Characteristic of Liushagang Formation in Fushan Depression, Beibuwan Basin.Offshore Oil, 23(2):1-6(in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-HYSY200302000.htm Fuex, A.N., 1977.The Use of Stable Carbon Isotopes in Hydrocarbon Exploration.Journal of Geochemical Exploration, 7:155-188.doi: 10.1016/0375-6742(77)90080-2 Gong, Z.S., Li, S.T., 1997.The Research o1 Oil and Gas Accumulation Kinetics in the Continental Margin Basin of Northern South China Sea.Science Press, Beijing, 88-104(in Chinese). Li, M.J., Wang, T.G., 2005.The Generating Mechanism of Methylated Naphthalene Series in Crude Oils and the Application of Their Maturity Parameters.Petroleum Geology & Experiment, 27(6):606-611, 623(in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-SYSD200506011.htm Li, M.J., Wang, T.G., 2015.The Progress and Application of Reservoir Geochemistry in Hydrocarbon Exploration:An Example from the Fushan Depression, Beibuwan Basin, South China Sea.Earth Science Frontiers, 22(1):215-222(in Chinese with English abstract). http://www.en.cnki.com.cn/Article_en/CJFDTotal-DXQY201501021.htm Li, M.J., Wang, T.G., Liu, J., et al., 2007.Oil Charging Orientation and Accumulation Characteristics of Oil Reservoirs in the Fushan Sag, Beibuwan Basin.Petroleum Geology & Experiment, 29(2):172-177(in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-SYSD200702013.htm Li, M.J., Wang, T.G., Liu, J., et al., 2008.The Occurrence of Oleananes in the Beibuwan Basin and Its Application to the Study of Maturity and Oil-Source Rock Correlation.Acta Geologica Sinica, 82(3):585-595.doi: 10.1111/j.1755-6724.2008.tb00609.x Li, M.J., Wang, T.G., Shi, S., et al., 2014.Benzo [B] naphthothiophenes and Alkyl Dibenzothiophenes:Molecular Tracers for Oil Migration Distances.Marine and Petroleum Geology, 57:403-417.doi: 10.1016/j.marpetgeo.2014.06.012 Lin, Z.L., Wang, H., Li, H.J., et al., 2015.Genetic Mechanism of Double-Layer Structure in Paleogene of Fushan Sag, Beibu Gulf Basin.Earth Science, 40(1):169-178(in Chinese with English abstract). http://www.en.cnki.com.cn/Article_en/CJFDTotal-DQKX201501014.htm Liu, E.T., W, H., Li, Y., et al., 2012.Characteristics and Hydrocarbon Enrichment Rules of Transfer Zone in Fushan Sag, Beibuwan Basin.Journal of Central South University—Science and Technology, 43(10):3946-3953(in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-ZNGD201210031.htm Liu, E.T., W, H., Li, Y., et al., 2014.Sedimentary Characteristics and Tectonic Setting of Sublacustrine Fans in a Half-Graben Rift Depression, Beibuwan Basin, South China Sea.Marine and Petroleum Geology, 52:9-21. doi: 10.1016/j.marpetgeo.2014.01.008 Lu, S.F., Zhang, M., 2008.Petroleum Geochemistry.Petroleum Industry Press, Beijing, 206-213(in Chinese). Luo, Q., Pang, X.Q., 2008.Reservoir Controlling Mechanism and Petroleum Accumulation Model for Consequent Fault and Antithetic Fault in Fushan Sag of Hainan Area.Acta Petrolei Sinica, 29(3):363-367(in Chinese with English abstract). http://en.cnki.com.cn/article_en/cjfdtotal-syxb200803009.htm Ma, Q.L., Zhao, S.E., Liao, Y.T., et al., 2012.Sequence Architectures of Palcogene Liushagang Formation and lts Significance in Fushan Sag of the Beibuwan Basin.Earth Science, 37(4):667-678(in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-DQKX201204007.htm Meng, F.W., Zhou, C.M., Yan K, et al.2006.Biological Origin of Early Palaeozoic and Precambrian Hydrocarbon Source Rocks Based on C27/C29 Sterane Ratio and Organic Carbon Isotope.Acta Micropalaeontologica Sinica, 23(1):51-56 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-WSGT200601005.htm Moldowan, J.M., Seifert, W.K., Gallegos, E.J., et al., 1985.Relationship between Petroleum Composition and Depositional Environment of Petroleum Source Rocks.AAPG Bulletin, 69(8):1255-1268.doi: 10.1306/ad462bc8-16f7-11d7-8645000102c1865d Peters, K.E., Moldowan, J.M., 1993.The Biomarker Guide:Interpreting Molecular Fossils in Petroleum and Ancient Sediments.Choice Reviews Online, 30(5):30-2690-30-2690.doi: 10.5860/choice.30-2690 Radke, M., Welte, D.H., Willsch, H., 1986.Maturity Parameters Based on Aromatic Hydrocarbons:Influence of the Organic Matter Type.Organic Geochemistry, 10(1-3):51-63.doi: 10.1016/0146-6380(86)90008-2 Seifert, W.K., Moldowan, J.M., 1978.Applications of Steranes, Terpanes and Monoaromatics to the Maturation, Migration and Source of Crude Oils.Geochimica et Cosmochimica Acta, 42(1):77-95.doi: 10.1016/0016-7037(78)90219-3 Shi, Y.M., Liu, J., Zhang, M.Z., et al., 2007.Experience and Understand in Oil and Gas Exploration in Fushan Sag, Hainan Province.South China Journal of Seismology, 27(3):57-68(in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTotal-HNDI200703005.htm Ten Haven, H.L., De Leeuw, J.W., Peakman, T.M., et al., 1986.Anomalies in Steroid and Hopanoid Maturity Indices.Geochimica et Cosmochimica Acta, 50(5):853-855. doi: 10.1016/0016-7037(86)90361-3 Wang, F.Y., Bian, L.Z., Zhang, S.C., et al., 2001.Two Kinds of Precursors of Hydrocarbon of Ordovician Marine Source Rocks.Science in China (Series D), 31(2):96-102 (in Chinese). http://download.springer.com/static/pdf/791/art%253A10.1007%252Fs11434-013-5963-3.pdf?originUrl=https%3A%2F%2Flink.springer.com%2Farticle%2F10.1007%2Fs11434-013-5963-3&token2=exp=1500894940~acl=%2Fstatic%2Fpdf%2F791%2Fart%25253A10.1007%25252Fs11434-013-5963-3.pdf%3ForiginUrl%3Dhttps%253A%252F%252Flink.springer.com%252Farticle%252F10.1007%252Fs11434-013-5963-3*~hmac=85f6dde4db2de9687f892ccf736a7fc511e1247f7794d72278708d523e5bd6df Yu, J.J., Luo, Q., Zhang, D.J., 2004.Characteristics of Faults in the Fushan Depression of Harman, the Beibuwan Basin and Their Controlling Roles to Hydrocarbon Pool-Formation.Petroleum Geology & Experiment, 26(3):241-248(in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTotal-SYSD200403005.htm Zeng, X.Z., Liang, D.G., Wang, Z.R., et al., 1989.Continental Oil and Source Rock Biomarkers in China.Gansu Press of Science and Technology, Lanzhou, 171-189(in Chinese). Zhao, Y.D., Wang, H., Gan, H.J., et al., 2014.The Analysis about Evolution of Basin Morphology in Fushan Sag of Hainan Province.Journal of China University of Mining & Technology, 43(6):1078-1086(in Chinese with English abstract). https://www.researchgate.net/publication/286599505_The_analysis_about_evolution_of_basin_morphology_in_Fushan_sag_of_Hainan_province 丁卫星, 王文军, 马英俊, 2003.北部湾盆地福山凹陷流沙港组含油气系统特征.海洋石油, 23(2):1-6. http://cdmd.cnki.com.cn/Article/CDMD-10491-1015709883.htm 龚再生, 李思田, 1997.南海北部大陆边缘盆地分布与油气聚集.北京:科学出版社, 88-104. 李美俊, 王铁冠, 2005.原油中烷基萘的形成机理及其成熟度参数应用.石油实验地质, 27(6):606-611, 623. http://www.cnki.com.cn/Article/CJFDTOTAL-SYSD200506011.htm 李美俊, 王铁冠, 刘菊, 等, 2007.北部湾盆地福山凹陷原油充注方向及成藏特征.石油实验地质, 29(2):172-177. http://www.cnki.com.cn/Article/CJFDTOTAL-SYSD200702013.htm 李美俊, 王铁冠, 2015.油藏地球化学在勘探中的研究进展及应用:以北部湾盆地福山凹陷为例.地学前缘, 22(1):215-222. http://www.cnki.com.cn/Article/CJFDTOTAL-DXQY201501021.htm 林正良, 王华, 李红敬, 等, 2015.北部湾盆地福山凹陷古近系双层结构形成机制.地球科学, 40(1):169-178. http://earth-science.net/WebPage/Article.aspx?id=3019 刘恩涛, 王华, 林正良, 等, 2012.北部湾盆地福山凹陷构造转换带及其油气富集规律.中南大学学报(自然科学版), 43(10):3946-3953. http://cdmd.cnki.com.cn/Article/CDMD-10491-1015709910.htm 卢双舫, 张敏, 2008.油气地球化学.北京:石油工业出版社, 206-213. 罗群, 庞雄奇, 2008.海南福山凹陷顺向和反向断裂控藏机理及油气聚集模式.石油学报, 29(3):363-367. http://www.cnki.com.cn/Article/CJFDTOTAL-SYXB200803009.htm 马庆林, 赵淑娥, 廖远涛, 等, 2012.北部湾盆地福山凹陷古近系流沙港组层序地层样式及其研究意义.地球科学, 37(4):667-678. http://earth-science.net/WebPage/Article.aspx?id=2273 孟凡巍, 周传明, 燕夔, 等, 2006.通过C27/C29甾烷和有机碳同位素来判断早古生代和前寒武纪的烃源岩的生物来源.微体古生物学报, 23(1):51-56. http://kns.cnki.net/KCMS/detail/detail.aspx?filename=wsgt200601005&dbname=CJFD&dbcode=CJFQ 石彦民, 刘菊, 张梅珠, 等, 2007.海南福山凹陷油气勘探实践与认识.华南地震, 27(3):57-68. http://www.cnki.com.cn/Article/CJFDTOTAL-HNDI200703005.htm 王飞宇, 边立曾, 张水昌, 等, 2001.塔里木盆地奥陶系海相源岩中两类生烃母质.中国科学(D辑), 31(2):96-102. http://www.cnki.com.cn/Article/CJFDTOTAL-JDXK200102001.htm 赵迎冬, 王华, 甘华军, 等, 2014.海南福山凹陷盆地形态演化分析.中国矿业大学学报, 43(6):1078-1086. http://www.cnki.com.cn/Article/CJFDTOTAL-ZGKD201406019.htm 于俊吉, 罗群, 张多军, 2004.北部湾盆地海南福山凹陷断裂特征及其对油气成藏的控制作用.石油实验地质, 26(3):241-248. http://www.cnki.com.cn/Article/CJFDTOTAL-SYSD200403005.htm 曾宪章, 梁狄刚, 王忠然, 等, 1989.中国陆相原油和生油岩中的生物标志物.兰州:甘肃科学技术出版社, 171-189. -
点击查看大图
图(9) / 表(2)
计量
- 文章访问数: 4815
- HTML全文浏览量: 2522
- PDF下载量: 48
- 被引次数: 0
