The pre-Sinian rift in central Sichuan Basin and its control on hydrocarbon accumulation in the overlying strata
WEI Guoqi1, YANG Wei1, ZHANG Jian2, XIE Wuren1, ZENG Fuying1, SU Nan1, JIN Hui1
1. Research Institute of Petroleum Exploration and Development, PetroChina, Langfang 065007, China; 2. PetroChina Southwest Oil & Gas Field Company, Chendu 610041, China;
Abstract：Based on the latest seismic data, resistivity profile, outcrop evidence and logging data, the structural features of basement in Sichuan Basin and its control on the hydrocarbon accumulation in the Sinian-Cambrian strata was discussed. It was found that a NE striking pre-Sinian rift was developed across the whole basin. Controlled by a series of rift-parallel normal faults, horst-graben structures were developed inside the rift, large horst-graben structures and later activity of their boundary faults controlled the distribution of beach facies of the overlying strata. The horst-graben structures induced the formation of local highs of ancient landform and controlled the successive development of overlapped bioherm beach facies in long-term marine setting from the Sinian period to the Permian period, and as a result a widely distributed favorable sedimentary facies belt was developed. The pre-Sinian rift and later activities of related normal faults controlled the development of the grain beach and karst reservoirs and the deposition of high quality source rock, which form structural-lithologic traps. Through comprehensive evaluation, two large structural-lithologic composite trap favorable exploration areas in the south and north of the Gaoshiti-Moxi area, were selected.
魏国齐, 杨威, 张健, 谢武仁, 曾富英, 苏楠, 金惠. 四川盆地中部前震旦系裂谷及对上覆地层成藏的控制[J]. 石油勘探与开发, 2018, 45(2): 179-189.
WEI Guoqi, YANG Wei, ZHANG Jian, XIE Wuren, ZENG Fuying, SU Nan, JIN Hui. The pre-Sinian rift in central Sichuan Basin and its control on hydrocarbon accumulation in the overlying strata[J]. Petroleum Exploration and Development, 2018, 45(2): 179-189.
[1] 杜金虎, 邹才能, 徐春春, 等. 川中古隆起龙王庙组特大型气田战略发现与理论技术创新[J]. 石油勘探与开发, 2014, 41(3): 268-277. DU Jinhu, ZOU Caineng, XU Chunchun, et al.Theoretical and technical innovations in strategic discovery of a giant gas field in Cambrian Longwangmiao Formation of central Sichuan paleo-uplift, Sichuan Basin[J]. Petroleum Exploration and Development, 2014, 41(3): 268-277. [2] 魏国齐, 杜金虎, 徐春春, 等. 四川盆地高石梯—磨溪地区震旦系—寒武系大型气藏特征与聚集模式[J]. 石油学报, 2015, 36(1): 1-12. WEI Guoqi, DU Jinhu, XU Chunchun, et al.Characteristics and accumulation modes of large gas reservoir in Sinian-Cambrian of Gaoshiti-Moxi region, Sichuan Basin[J]. Acta Petrolei Sinica, 2015, 36(1): 1-12. [3] 魏国齐, 杨威, 杜金虎, 等. 四川盆地高石梯—磨溪古隆起构造特征及对特大型气田形成的控制作用[J]. 石油勘探与开发, 2015, 42(3): 257-265. WEI Guoqi, YANG Wei, DU Jinhu, et al.Tectonic features of Gaoshiti-Moxi paleo-uplift and its controls on the formation of a giant gas field, Sichuan Basin, SW China[J]. Petroleum Exploration and Development, 2015, 42(3): 257-265. [4] 姜华, 汪泽成, 杜宏宇, 等. 乐山—龙女寺古隆起构造演化与新元古界震旦系天然气成藏[J]. 天然气地球科学, 2014, 25(2): 192-200. JIANG Hua, WANG Zecheng, DU Hongyu, et al.Tectonic evolution of the Leshan-Longnvsi Paleo-uplift and reservoir formation of Neoproterozoic Sinian Gas[J]. Natural Gas Geoscience, 2014, 25(2): 192-200. [5] 赵文智, 胡素云, 汪泽成, 等. 鄂尔多斯盆地基底断裂在上三叠统延长组石油聚集中的控制作用[J]. 石油勘探与开发, 2003, 30(5): 1-5. ZHAO Wenzhi, HU Suyun, WANG Zecheng, et al.Key role of basement fault control on oil accumulation of Yanchang Formation, Upper Triassic, Ordos Basin[J]. Petroleum Exploration and Development, 2003, 30(5): 1-5. [6] 胡素云, 蔚远江, 董大忠, 等. 准噶尔盆地腹部断裂活动对油气聚集的控制作用[J]. 石油学报, 2006, 27(1): 1-7. HU Suyun, YU Yuanjiang, DONG Dazhong, et al.Control of fault activity on hydrocarbon accumulation in central Junggar Basin[J]. Acta Petrolei Sinica, 2006, 27(1): 1-7. [7] 汪泽成, 赵文智, 李宗银, 等. 基底断裂在四川盆地须家河组天然气成藏中的作用[J]. 石油勘探与开发, 2008, 35(5): 541-547. WANG Zecheng, ZHAO Wenzhi, LI Zongyin, et al.Role of basement faults in gas accumulation of Xujiahe Formation, Sichuan Basin[J]. Petroleum Exploration and Development, 2008, 35(5): 541-547. [8] 马丽娟, 解习农, 任建业. 东营凹陷古构造对下第三系储集体的控制作用[J]. 石油勘探与开发, 2002, 29(2): 64-66. MA Lijuan, XIE Xinong, REN Jianye.Controlling of Dongying sag structure on the Tertiary sedimentary sands bodies[J]. Petroleum Exploration and Development, 2002, 29(2): 64-66. [9] 宋鸿彪, 罗志立. 盆地实例分析: 四川盆地基底及深部地质结构研究的进展[J]. 地学前缘, 1995, 2(4): 231-237. SONG Hongbiao, LUO Zhili.The study of the basement and deep geological structure of Sichuan Basin, China[J]. Earth Science Frontiers, 1995, 2(4): 231-237. [10] 张健, 沈平, 杨威, 等. 四川盆地前震旦纪沉积岩新认识与油气勘探的意义[J]. 天然气工业, 2012, 32(7): 1-5. ZHANG Jian, SHEN Ping, YANG Wei, et al.New understandings of Pre-Sinian sedimentary rocks in the Sichuan Basin and the significance of oil and gas exploration there[J]. Natural Gas Industry, 2012, 32(7): 1-5. [11] 张国伟, 郭安林, 王岳军, 等. 中国华南大陆构造与问题[J]. 中国科学: 地球科学, 2013, 43(10): 1553-1582. ZHANG Guowei, GUO Anlin, WANG Yuejun, et al.Tectonics of South China continent and its implications[J]. SCIENCE CHINA Earth Sciences, 2013, 56(11): 1804-1828. [12] 舒良树. 华南构造演化的基本特征[J]. 地质通报, 2012, 31(7): 1035-1053. SHU Liangshu.An analysis of principal features of tectonic evolution in South China Block[J]. Geological Bulletin of China, 2012, 31(7): 1035-1053. [13] SHU L S, FAURE M, YU J H, et al.Geochronological and geochemical features of the Cathaysia block (South China): New evidence for the Neoproterozoic breakup of Rodinia[J]. Precambrian Research, 2011, 187(3/4): 263-276. [14] 赵文智, 魏国齐, 杨威, 等. 四川盆地万源—达州克拉通内裂陷的发现及勘探意义[J]. 石油勘探与开发, 2017, 44(5): 659-669. ZHAO Wenzhi, WEI Guoqi, YANG Wei, et al.Discovery of Wanyuan-Dazhou intracratonic rift and its significance for gas exploration in Sichuan Basin, SW China[J]. Petroleum Exploration and Development, 2017, 44(5): 659-669. [15] 李献华, 王选策, 李武显, 等. 华南新元古代玄武质岩石成因与构造意义: 从造山运动到陆内裂谷[J]. 地球化学, 2008, 37(4): 382-398. LI Xianhua, WANG Xuance, LI Wuxian, et al.Petrogenesis and tectonic significance of Neoproterozoic basaltic rocks in South China: From orogenesis to intracontinental rifting[J]. Geochimica, 2008, 37(4): 382-398. [16] 王剑, 刘宝珺, 潘桂棠. 华南新元古代裂谷盆地演化: Rodinia超大陆解体的前奏[J]. 矿物岩石, 2001, 21(3): 135-145. WANG Jian, LIU Baojun, PAN Guitang.Neoproterozoic rifting history of South China significance to Rodinia breakup[J]. Journal of Mineralogy and Petrology, 2001, 21(3): 135-145. [17] LI Z X, BOGDANOVA S V, COLLINS A S, et al.Assembly, configuration, and break-up history of Rodinia: A synthesis[J]. Precambrian Research, 2008, 160(1/2): 179-210. [18] 刘宝珺, 许效松. 中国南方岩相古地理[M]. 北京: 科学出版社, 1994. LIU Baojun, XU Xiaosong.Atlas of lithofacies and paleogeography in south China[M]. Beijing: Science Press, 1994. [19] 卓皆文, 江新胜, 王剑, 等. 华南扬子古大陆西缘新元古代康滇裂谷盆地的开启时间与充填样式[J]. 中国科学: 地球科学, 2013, 43(12): 1952-1963. ZHUO Jiewen, JIANG Xinsheng, WANG Jian, et al.Opening time and filling pattern of the Neoproterozoic Kangdian Rift Basin, western Yangtze Continent, South China[J]. SCIENCE CHINA Earth Sciences, 2013, 56(10): 1664-1676. [20] 彭学军, 刘耀荣, 吴能杰, 等. 扬子陆块东南缘南华纪地层对比[J]. 地层学杂志, 2014, 28(4): 354-359. PENG Xuejun, LIU Yaorong, WU Nengjie, et al.Correlation of the Nanhua Strata on the Southern margin of the Yangtze landmass[J]. Journal of Stratigraphy, 2014, 28(4): 354-359. [21] 钱迈平, 张宗言, 姜杨, 等. 中国东南部新元古代冰碛岩地层[J]. 地层学杂志, 2012, 36(3): 587-599. QIAN Maiping, ZHANG Zongyan, JIANG Yang, et al.The Neoproterozoic tillite in southeastern China[J]. Journal of Stratigraphy, 2012, 36(3): 587-599. [22] 王剑, 潘桂棠. 中国南方古大陆研究进展与问题评述[J]. 沉积学报, 2009, 27(5): 818-825. WANG Jian, PAN Guitang.Neoproterozoic South China Palaeocontinents: An overview[J]. Acta Sedimentologica Sinica, 2009, 27(5): 818-825. [23] 李怀坤, 张传林, 姚春彦, 等. 扬子西缘中元古代沉积地层锆石U-Pb年龄及Hf同位素组成[J]. 中国科学: 地球科学, 2013, 43(8): 1287-1298. LI Huaikun, ZHANG Chuanlin, YAO Chunyan, et al.U-Pb zircon age and Hf isotope compositions of Mesoproterozoic sedimentary strata on the western margin of the Yangtze massif[J]. SCIENCE CHINA Earth Sciences, 2013, 56(4): 628-639. [24] 杨志如, 王学军, 冯许魁, 等. 川中地区前震旦系裂谷研究及其地质意义[J]. 天然气工业, 2014, 34(3): 80-85. YANG Zhiru, WANG Xuejun, FENG Xukui, et al.Geological research and significance of a rift valley in the Presinian period in central Sichaun Basin[J]. Natural Gas Industry, 2014, 34(3): 80-85. [25] 魏国齐, 焦贵浩, 杨威, 等. 四川盆地震旦系—下古生界天然气成藏条件与勘探前景[J]. 天然气工业, 2010, 30(12): 5-9. WEI Guoqi, JIAO Guihao, YANG Wei, et al.Hydrocarbon pooling conditions and exploration potential of Sinian-Lower Paleozoic gas reservoirs in the Sichuan Basin[J]. Natural Gas Industry, 2010, 30(12): 5-9. [26] 魏国齐, 沈平, 杨威, 等. 四川盆地震旦系大气田形成条件与勘探远景区[J]. 石油勘探与开发, 2013, 40(2): 129-138. WEI Guoqi, SHEN Ping, YANG Wei, et al.Formation conditions and exploration prospects of Sinian large gas fields, Sichuan Basin[J]. Petroleum Exploration and Development, 2013, 40(2): 129-138. [27] 谢增业, 魏国齐, 张健, 等. 四川盆地东南缘南华系大塘坡组烃源岩特征及其油气勘探意义[J]. 天然气工业, 2017, 37(6): 1-11. XIE Zengye, WEI Guoqi, ZHANG Jian, et al.Characteristics of source rocks of the Datangpo Fm, Nanhua System, at the southeastern margin of Sichuan Basin and their significance to oil and gas exploration[J]. Natural Gas Industry, 2017, 37(6): 1-11.
2018, Vol. 45 
