收稿日期: 2010-03-25
修回日期: 2010-06-26
网络出版日期: 2010-10-10
基金资助
国家基础研究发展计划(“973”)项目(编号：2007CB209502）；青年风险创新基金项目(编号：07-06D-01-04-01-03）联合资助.
Characteristics of Jurassic Petroleum Geology and Main Factors of Hydrocarbon Accumulation in NE Sichuan Basin
Received date: 2010-03-25
Revised date: 2010-06-26
Online published: 2010-10-10
基于四川盆地东北部(川东北)地区区域构造演化和侏罗系油气地质条件研究，分析了研究区侏罗系油气地质特征与成藏主控因素。认为川东北地区经历了从内陆克拉通之后的大型淡水坳陷湖盆阶段向大巴山前陆盆地阶段的转换过程。同时,通过对川北前陆盆地生烃演化与油气运移特征，大巴山构造演化与圈闭发育特征，及其对油气成藏作用分析，剖析了川东北地区侏罗系自流井组大安寨段、凉高山组、沙溪庙组油藏成藏主控因素和富集规律，指出川东北地区侏罗系油藏为成岩后期油藏，即成岩压实作用之后烃源岩才大量生烃，聚集成藏，表现为储层成岩演化与生烃演化的不协调性，导致研究区含油气层系多、发育不规则、油气分布分散而又不均匀，且油气层只产油气、不产水。
李军, 陶士振, 汪泽成, 邹才能, 高晓辉, 王世谦 . 川东北地区侏罗系油气地质特征与成藏主控因素[J]. 天然气地球科学, 2010 , 21(5) : 732 -741 . DOI: 10.11764/j.issn.1672-1926.2010.05.732
Based on tectonic evolution and Jurassic petroleum geological conditions in NE Sichuan basin, we discussed the oil and gas geological characteristics and main tactors of hydrocarbon accumulation. NE Sichuan basin went through the transformational history from large fresh water depression basin after inland craton to foreland basin of Daba mountain. Based on hydrocarbon generation and migration in the foreland basin of north Sichuan, tectonic evolution and trap types in Daba mountain, we illustrated the main control factors of oil and gas accumulation in Daanzhai Member, Lianggaoshan Formation and Shaximiao Formation in Jurassic of the NE Sichuan. We pointed out that the formation of Jurassic oil reservoirs would be at the late diagenetic stage, since source rock started to generate a large number of hydrocarbons and accumulation after diagenesis compression, suggesting that diagenetic evolution of reservoir rocks would be out of harmony with hydrocarbon generation history. The result led to many oil and gas layers, with irregular, dispersed and uneven distribution for oil and gas, and no water produced.
［1］Guo Zhengwu.The Formation and Evolution in Sichuan Basin[M].Beijing:The Geological Publishing House,1996:58-72.［郭正吾.四川盆地形成与演化[M].北京:地质出版社,1996:58-72.］
［2］Tong Xiaoguang.The Tectonic Evolution and Hydrocarbon Accumulation in Sichuan Basin[M].Beijing:The Geological Publishing House,1992:20-28.［童晓光.四川盆地构造演化与油气聚集[M].北京:地质出版社,1992:20-28.］
［3］Jin Xingdai,Xin Yuxia,Sheng Feiqin,et al.Origins of partially reversed alkane δ13C values for biogenic gases in China[J].Organic Geochemistry,2004,35(4):405-411.
［4］Burnham A K,Clarkson J E,Singleton M F,et al.Biological markers from Green River kerogen decomposition[J].Geochmica et Cosmochmica Acta,1982,46(7):1243-1251.
［5］Seifert W K,Moldwan J M.Use of biological markers in petroleum exploration［C］//Jonns R B.Methods in Geochemistry and Geophysics.Amsterdam:Elsevier,2004:261-290.
［6］Lu Huanzhang.Inclusion geochemistry[M].Beijing:The Geological Publishing House,1990:128-142.［卢焕章.包裹体地球化学[M].北京:地质出版社,1990:128-142.］
［7］Dutkiewicz A,Rasmussen B,Buick R.Oil preserved in fluid inclusions in Archaean sandstones[J].Nature,1997,395(6705):885-888.
［8］Tao Shizhen,Zhang Baomin,Zhao Changyim.Application of fluid inclusion in oil-gas source trace[J].Acta Petrologica Sinica,2003,19(2):327-336.［陶士振,张宝民,赵长毅，等.流体包裹体方法在油气源追踪对比中的应用——以四川盆地碳酸盐岩大型气田为例[J].岩石学报,2003,19(2):327-336.］
［9］Li Shubing,He Li,Liu Meiqing.The evolution of Sichuan basin in late Triassic[J].Natural Gas Industry,1999(supplement):18-23.［李书兵,何鲤,柳梅青.四川盆地晚三叠世以来陆相盆地演化史[J].天然气工业,1999(增刊):18-23.］
［10］Liu Deliang,Song Yan.Structural Evolution and Natural Gas Accumulation Zone Comprehensive Study in the Sichuan Basin[M].Beijing:Petroleum Industry Press,2000:165-192.［刘德良,宋岩.四川盆地构造与天然气聚集区带综合研究[M].北京:石油工业出版社,2000:165-192.］
［11］Wang Zecheng,Zhao Wenzhi,Zhang Lin,et al.Structural Sequence and Natural Gas Exploration in Sichuan Basin[M].Beijing:The Geological Publishing House,2002:35-56.［汪泽成,赵文智,张林,等.四川盆地构造层序与天然气勘探[M].北京:地质出版社,2002:35-56.］
［12］Wang Zecheng,Zou Caineng,Tao Shizhen,et al.Analysis on tectonic evolution and exploration potential in Dabashan foreland basin[J].Acta Petrolei Sinica,2004,25(6):23-28.［汪泽成,邹才能,陶士振,等.大巴山前陆盆地形成及演化与油气勘探潜力分析[J].石油学报,2004,25(6):23-28.］
［13］Wang Tingbin.Differences in reservoiring conditions of oil and natural gas and reservoiring models of gas fields in China[J].Natural Gas Geoscience,2003,14(2):79-86.［王庭斌.天然气与石油成藏条件差异及中国气田成藏模式[J].天然气地球科学,2003,14(2):79-86.］
［14］Liu Deliang,Tao Shizhen,Zhang Baomin et al.Application and questions about ascertaining oil-gas pools age with inclusion[J].Natural Gas Geoscience,2005,16(1):16-20.［刘德良,陶士振,张宝民.包裹体在确定成藏年代中的应用及应注意的问题[J].天然气地球科学,2005,16(1):16-20.］
［15］Qiang Zitong,Yag Zhijiang,Wang Jianmin,et al.Diagenesis and diagenetic traps of the Daanzhai limestone[J].Geochimica,1981,10(3):232-241.［强子同,杨植江,王建民,等.大安寨灰岩的成岩作用与成岩圈闭[J].地球化学,1981,10(3):232-241.］
［16］Yang Zhanlong,Chen Qilin.Lithologic traps and lithologic reservoirs exploration in continental basins[J].Natural Gas Geoscience,2006,17(5):616-621.[JP3]［杨占龙,陈启林.岩性圈闭与陆相盆地岩性油气藏勘探[J].天然气地球科学,2006,17(5):616-621.］
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