PDF(14162 KB)
鄂尔多斯盆地西缘南段古生界油藏地质特征及其构造演化与成藏耦合关系
魏嘉怡, 张雷, 王红伟, 曹茜, 井向辉, 杨亚娟, 张艳, 刘刚, 李涵
PDF(14162 KB)
PDF(14162 KB)
鄂尔多斯盆地西缘南段古生界油藏地质特征及其构造演化与成藏耦合关系
Geological Characteristics and Their Coupling Relationship between Structural Evolution and Reservoir Formation of Paleozoic Oil Reservoirs in the Southern Section of the Western Edge of the Ordos Basin
,
,
基于鄂尔多斯盆地西缘冲断带南段古生界油藏勘探取得的地质、地震和分析化验资料，以2022年发现的首口古生界工业油流井YT3井为依据，结合乌拉力克组、羊虎沟组两套含油层系构造‒沉积背景，开展油源对比，定量恢复构造演化过程，系统分析古生界油藏成因与成藏‒构造耦合关系，构建非常规油藏成藏模式，预测评价勘探有利区.结果表明：（1）下古生界乌拉力克组原油是“单源”的，来自于同层位的泥质烃源岩，上古生界羊虎沟组油砂是“双源”的，为乌拉力克组泥质烃源岩和羊虎沟组煤系烃源岩共同贡献，两套烃源岩均具有生油能力，相比之下乌拉力克组烃源岩生油潜力较大；（2）构造平衡剖面法定量恢复揭示，“海西‒印支期差异沉降作用”是导致银洞子、沙井子冲断席乌拉力克组烃源岩“西高东低”成熟度差异以及油气相态有所不同的根本原因；（3）源储配置构建非常规油藏“双源双储”立体成藏模式，乌拉力克组发育“自生自储式”油藏，羊虎沟组发育“下生上储式”+“源内”油藏；（4）地质‒地震多属性融合预测区内乌拉力克组泥页岩有利勘探面积400 km2、羊虎沟组有利勘探面积300 km2，体积法估算西缘南段上、下古生界油藏总资源潜力1.0×108 t，是古生界油藏勘探的现实目标接替区.
Based on the geological, seismic, and analytical data obtained from the exploration of Paleozoic oil reservoirs in the southern section of the western margin thrust belt in the Ordos basin and based on the first Paleozoic industrial oil flow Well YT3 discovered in 2022, combined with the tectonic sedimentary background of the Wulalike Formation and Yanghugou Formation oil-bearing series, this study conducts a comparison of Paleozoic oil sources, quantitatively restores the structural evolution process, systematically analyzes the genesis and reservoir-structure coupling relationship of Paleozoic oil reservoirs, constructs unconventional oil reservoir accumulation models, predicts and evaluates favorable exploration areas.The study shows follows. (1) The crude oil of the Lower Paleozoic Wulalike Formation is “single source” from the same layer of mudstone source rocks, and the oil sand of the Upper Paleozoic Yanghugou Formation is “dual source”, contributing to the joint contribution of the Wulalike Formation mudstone source rocks and the Yanghugou Formation coal-bearing source rocks. Both sets of source rocks have the ability to generate oil, and in comparison, the Wulalike Formation source rocks have a greater potential for oil generation. (2) The construction quantitative restoration of the balanced profile method reveals that the differential settlement effect during the Hercynian-Indosinian period is the fundamental reason for the differences in maturity of the source rocks of the Wulalike Formation in the Yindongzi and Shajingzi thrust faults, which is high in the west and low in the east, as well as the differences in oil and gas phases. (3) A “dual source and dual storage” stereoscopic reservoir formation model of unconventional oil reservoirs is constructed through the study of source and reservoir configuration relationship. The Wulalike Formation has developed “self generating and self storing” oil reservoirs, while the Yanghugou Formation has developed “bottom generating and upper storing” and “source in” oil reservoirs. (4) The geological seismic multi-attribute fusion prediction area has a favorable exploration area of 400 km2 for the Wulalike Formation shale and 300 km2 for the Yanghugou Formation.The volume method estimates the total resource potential of the Upper and Lower Paleozoic oil reservoirs in the southern section of the western margin to be 1.0×108 t, which is a realistic target replacement area for Paleozoic reservoir exploration.
鄂尔多斯盆地 / 古生界油藏 / 乌拉力克组原油 / 羊虎沟组油砂 / 定量构造演化 / 双源双储 / 构造地质 / 油气地质.
Ordos basin / Paleozoic oil reservoirs / Wulalike Formation crude oil / Yanghugou Formation oil sand / quantitative structural evolution / dual source and dual storage / tectonics / petroleum geology
P618
|
Bao, H.P., Shao, D.B., Wu, C.Y., et al., 2018. The Structural Characteritics of South Segment of Western Ordos Thrust Belt, and Its Influence on Gas Reservoir Forming of Plaeozoic. Chinese Journal of Geology (Scientia Geologica Sinica), 53(2): 434-457 (in Chinese with English abstract).
|
|
Chen, H.H., 2007. Advances in Geochronology of Hydrocarbon Accumulation. Oil & Gas Geology, 28(2): 143-150 (in Chinese with English abstract).
|
|
Chen, J.P., Zhao, C.Y., He, Z.H., et al., 1997. Criteria for Evaluating the Hydrocarbon Generating Potential of Organic Matter in Coal Measures. Petroleum Exploration and Development, 24(1): 1-5 (in Chinese with English abstract).
|
|
Chen, Z.X., Jia, D., Zhang, Q., et al., 2005. Balanced Cross-Section Analysis of the Fold-Thrust Belt of the Longmen Mountains. Acta Geologica Sinica, 79(1): 38-45 (in Chinese with English abstract).
|
|
Guo, W., Dong, D.Z., Li, M., et al., 2021. Quartz Genesis in Organic-Rich Shale and Its Indicative Significance to Reservoir Quality: A Case Study on the First Submember of the First Member of Lower Silurian Longmaxi Formation in the Southeastern Sichuan Basin and Its Periphery. Natural Gas Industry, 41(2): 65-74 (in Chinese with English abstract).
|
|
Jia, C.Z., Zheng, M., Zhang, Y.F., 2012. Unconventional Hydrocarbon Resources in China and the Prospect of Exploration and Development. Petroleum Exploration and Development, 39(2): 129-136 (in Chinese with English abstract).
|
|
Jiang, G.Z., Gao, P., Rao, S., et al., 2016.Compilation of Heat Flow Data in the Continental Area of China (4" Edition). Chinese Journal of Geophysics, 59(8): 2892-2910 (in Chinese with English abstract).
|
|
Karlsen, D. A., Nedkvitne, T., Larter, S. R., et al., 1993. Hydrocarbon Composition of Authigenic Inclusions: Application to Elucidation of Petroleum Reservoir Filling History. Geochimica et Cosmochimica Acta, 57(15): 3641-3659. https://doi.org/10.1016/ 0016-7037(93)90146-N
|
|
Kodner, R. B., Pearson, A., Summons, R. E., et al., 2008. Sterols in Red and Green Algae: Quantification, Phylogeny, and Relevance for the Interpretation of Geologic Steranes. Geobiology, 6(4): 411-420. https://doi.org/10.1111/j.1472-4669.2008.00167.x
|
|
Liu, C.Y., Wang, J.Q., Zhang, D.D., et al., 2021. Genesis of Rich Hydrocarbon Resources and Their Occurrence and Accumulation Characteristics in the Ordos Basin. Oil & Gas Geology, 42(5): 1011-1029 (in Chinese with English abstract).
|
|
Liu, D.H., Fu, J.M., Xiao, X.M., et al., 2005. Origin and Appraisal of Coal Derived Gas and Oil. Petroleum Exploration and Development, 32(4): 137-141 (in Chinese with English abstract).
|
|
Liu, Y.M., Kong, Z.P., 1984.Prospect of Oil and Gas of Thrust Belt in Western Margin in Ordos Basin. Petroleum Exploration and Development, 11(1): 33-40 (in Chinese with English abstract).
|
|
Luo, X., Li, J., Hu, G.Y., et al., 2003. An Experiment of Generation and Expulsion of Oil from the Jurassic Coals and Its Implication of Coal Generated Oil in the Ordos Basin. Experimental Petroleum Geology, 25(1): 76-80 (in Chinese with English abstract).
|
|
Ma, H., 1986. Pyrolysis Gc of the Permo-Carboniferous Rocks at Western Margin of Ordos Basin. Petroleum Geology & Expeximent, 8(3): 295-298 (in Chinese with English abstract).
|
|
Ma, Z.R., Bai, H.F., Liu, B.X., et al., 2013. Lithofacies Palaeogeography of the Middle-Late Ordovician Kelimoli and Wulalike Ages in Western Ordos Area. Journal of Palaeogeography, 15(6): 751-764 (in Chinese with English abstract).
|
|
Niu, X.B., Feng, S.B., Liu, F., et al., 2013. Microscopic Occurrence of Oil in Tight Sandstones and Its Relation with Oil Sources-A Case Study from the Upper Triassic Yanchang Formation, Ordos Basin. Oil & Gas Geology, 34(3): 288-293 (in Chinese with English abstract).
|
|
Peters, K.E., Walters, C.C., Moldowan, J.M., 2005. The Biomarker Guide.Biomarkers and Isotopes in the Environment and Human History. Cambridge University Press, New York.
|
|
Su, P., Hu, S.Z., Li, S.F., et al., 2023. Control of Strike-Slip Faults on Crude Oil Properties: Exemplified by Jinghe Oilfield in South Ordos Basin. Earth Science, 48(6): 2310-2323 (in Chinese with English abstract).
|
|
Volkman, J. K., Barrett, S. M., Blackburn, S. I., 1999. Eustigmatophyte Microalgae are Potential Sources of C29 Sterols, C22-C28 N-Alcohols and C28-C32 N-Alkyl Diols in Freshwater Environments. Organic Geochemistry, 30(5): 307-318. https://doi.org/10.1016/S0146-6380(99)00009-1
|
|
Wang, J., Guo, Q.L., Zhao, C.L., et al., 2023.Potentials and Prospects of Shale Oil-Gas Resources in Major Basins of China. Acta Petrolei Sinica, 44(12): 2033-2044 (in Chinese with English abstract).
|
|
Wang, Y.J., Cai, C., Xiao, Y., et al., 2021. Geochemical Characteristics and Oil-Source Correlation of Crude Oils of Buried Hills in Shulu Sag, Jizhong Depression. Earth Science, 46(10): 3629-3644 (in Chinese with English abstract).
|
|
Wei, J.Y., Wang, H.W., Liu, G., et al., 2023. Sedimentary Characteristics of Carboniferous Yanghugou Formation in Thrust Belt on the Western Margin of Ordos Basin. Lithologic Reservoirs, 35(5): 120-130 (in Chinese with English abstract).
|
|
Wu, L.Y., Gu, X.Z., 1986. The Application of Pyrolysis Technique in Source Rock Research. Acta Petrolei Sinica, 7(2): 13-19 (in Chinese with English abstract).
|
|
Xi, S.L., Wei, J.Y., Zhang, C.L., et al., 2023.Discovery and Significance of Marine Shale Oil Exploration in Ordos Basin. Acta Petrolei Sinica, 44 (2)：253-269 (in Chinese with English abstract)．
|
|
Xiao, H., Li, M.J., Yang, Z., et al., 2019.Distribution Patterns and Geochemical Implications of C19-C23 Tricyclic Terpanes in Source Rocks and Crude Oils Occurring in Various Depositional Environments. Geochimica, 48(2): 161-170 (in Chinese with English abstract).
|
|
Yang, F., Wang, Q., Hao, F., et al., 2020.Biomarker Characteristics of Source Rock and Oil-Correlation in Raoyang Depression, Jizhong Sub-Basin. Earth Science, 45(1): 263-275 (in Chinese with English abstract).
|
|
Yang, H., Niu, X.B., Xu, L.M., et al., 2016a. Exploration Potential of Shale Oil in Chang 7 Member, Upper Triassic Yanchang Formation, Ordos Basin, NW China. Petroleum Exploration and Development, 43(4): 511-520 (in Chinese with English abstract).
|
|
Yang, H., Zhang, W.Z., Peng, A.P., et al., 2016b. Oil Detailed Classification and Oil-Source Correlation of Mesozoic Lacustrine Oil in Ordos Basin. Journal of Earth Sciences and Environment, 38(2): 196-205 (in Chinese with English abstract).
|
|
Yang, H., Tao, J.Q., Ouyang, Z.J., et al., 2011. Structural Characteristics and Forming Mechanism in the Western Margin of the Ordos Basin. Journal of Northwest University (Natural Science Edition), 41(5): 863-868 (in Chinese with English abstract).
|
|
Yang, Z., Hou, L.H., Tao, S.Z., et al., 2015.Formation Conditions and “Sweet Spot” Evaluation of Tight Oil and Shale Oil. Petroleum Exploration and Development,42 (5):555-565 (in Chinese with English abstract).
|
|
Yang, Z., Zou, C.N., 2019. “Exploring Petroleum Inside Source Kitchen”: Connotation and Prospects of Source Rock Oil and Gas. Petroleum Exploration and Development, 46(1): 173-184 (in Chinese with English abstract).
|
|
Yang, Z., Zou, C.N., 2022. Orderly “Symbiotic Enrichment”of Conventional & Unconventional Oil and Gas Discussion on Theory and Technology of Conventional & Unconventional Petroleum Geology. Acta Geologica Sinica, 96(5):1635-1653 (in Chinese with English abstract).
|
|
Zhang, J.D., 2007. The Most New Applications of Balanced Cross-Sections Technique in Oil and Gas Exploration in China and Overseas. Progress in Geophysics, 22(6): 1856-1861 (in Chinese with English abstract).
|
|
Zhang, Y., Cao, Z.C., Chen, H.H., et al., 2023.Difference of Hydrocarbon Charging Events and Their Contribution Percentages to Ordovician Reservoirs among Strike-Slip Fault Belts in Shunbei Area, Tarim Basin. Earth Science, 48(6):2168-2188 (in Chinese with English abstract).
|
|
Zhao, H.G., Liu, C.Y., Wang, F., et al., 2006. Structural Division and Characteristics in Western Edge of Ordos Basin. Oil & Gas Geology, 27(2): 173-179 (in Chinese with English abstract).
|
|
Zhou, Z.S., Ma, C.L., Hu, W.W., et al., 2008. Application of Balanced Cross-Section Technique in Seismic Data Interpretation. Coal Geology & Exploration, 36(3): 67-70 (in Chinese with English abstract)．
|
|
Zou, C.N., Yang, Z., He, D.B., et al., 2018. Theory, Technology and Prospects of Conventional and Unconventional Natural Gas. Petroleum Exploration and Development, 45(4): 575-587 (in Chinese with English abstract).
|
|
Zou, C.N., Yang, Z., Zhang, G.S., et al., 2023. Theory, Technology and Practice of Unconventional Petroleum Geology. Earth Science，48(6)：2376-2397 (in Chinese with English abstract).
|
|
Zou, C.N., Yang, Z., Zhu, R.K., et al., 2015. Progress in China’s Unconventional Oil & Gas Exploration and Development and Theoretical Technologies. Acta Geologica Sinica, 89(6): 979-1007 (in Chinese with English abstract).
|
/
| 〈 |
|
〉 |
AI Summary
