叠合断陷盆地沉积体系分析——以东海丽水—椒江凹陷为例
摘要
丽水—椒江凹陷是我国近海海域典型的叠合断陷盆地。综合分析岩芯、地震、录井、测井等资料,对东海丽水—椒江凹陷沉积体系开展了重点研究。分析认为,古新世研究区主要发育5种沉积体系:扇三角洲体系、三角洲体系、湖泊体系、海洋体系及重力流体系。在此基础上对古新统各组的沉积体系展布进行了深入探讨,其中,断陷初期月桂峰组为湖泊沉积环境,而后断陷继续,海侵发生,沉积环境转变为海洋环境;古新统沉积期三角洲体系主要发育于凹陷西缓坡,以闽浙隆起为物源,扇三角洲主要发育于同沉积断裂控制的东侧陡坡带,在月桂峰及灵峰组沉积期,灵峰潜山出露水面,其两侧形成多个扇三角洲(近岸水下扇)沉积。基于以上研究,预测出研究区的两个有利勘探相带:灵峰潜山两侧扇三角洲(近岸水下扇)及滨浅海(湖)砂体、丽水西次凹西斜坡南部与断块有利构造相匹配的三角洲前缘及滑塌重力流砂体。
Lishui-Jiaojiang Sag is the representative offshore superimposed rift-subsidence basin of China.Integrated study of well core,seismic,drilling,and logging shows that there are five sedimentary systems of the Paleocene in Lishui-Jiaojiang Sag: fan delta system,delta system,lake system,system and gravity flow system.The distribution patterns of the depositional systems in space are analyzed as that there was lacustrine environment in the Yueguifeng Formation,and then,strong rifting proceeded,the basin underwent a large-scale transgression,sedimentary environment changed into marine environment,delta system developed in the west gentle slope which was provided by the Minzhe uplift,fan delta system developed in the east steep hill which was controlled by synsedimentary faults.Lingfeng buried hill was out of water surface in the Yueguifeng ang Lingfeng Formation,there deposited several fan delta systems and nearshore subaqueous fan systems in its both sides.Based on the research,two favorable areas are proposed as fan delta(nearshore subaqueous fan) and littoral-shallow sea(lake) sand body on both sides of the Lingfeng buried hill,delta front and slumping gravity flow sand body matching fault block favorable structure in the south of the western slope of West Subsag of Lishui Sag.
Lishui-Jiaojiang Sag is the representative offshore superimposed rift-subsidence basin of China.Integrated study of well core,seismic,drilling,and logging shows that there are five sedimentary systems of the Paleocene in Lishui-Jiaojiang Sag: fan delta system,delta system,lake system,system and gravity flow system.The distribution patterns of the depositional systems in space are analyzed as that there was lacustrine environment in the Yueguifeng Formation,and then,strong rifting proceeded,the basin underwent a large-scale transgression,sedimentary environment changed into marine environment,delta system developed in the west gentle slope which was provided by the Minzhe uplift,fan delta system developed in the east steep hill which was controlled by synsedimentary faults.Lingfeng buried hill was out of water surface in the Yueguifeng ang Lingfeng Formation,there deposited several fan delta systems and nearshore subaqueous fan systems in its both sides.Based on the research,two favorable areas are proposed as fan delta(nearshore subaqueous fan) and littoral-shallow sea(lake) sand body on both sides of the Lingfeng buried hill,delta front and slumping gravity flow sand body matching fault block favorable structure in the south of the western slope of West Subsag of Lishui Sag.
引文
1童崇光.中国东部裂谷系盆地的石油地质特征[J].石油学报,1980,1(4):19-26[Tong Chongguang.Some characteristics of petro-leum geology of the rift system in Eastern China[J].Acta Petrolei Sini-ca,1980,1(4):19-26]
2龚再升,李思田,谢泰俊,等.南海北部大陆边缘盆地分析与油气聚集[M].北京:科学出版社,1997[Gong Zaisheng,Li Sitian,XieTaijun,et al.Continental Margin Basin Analysis and Hydrocarbon Ac-cumulation of the Northern South China Sea[M].Beijing:SciencePress,1997]
3邓运华.试论中国近海两个坳陷带油气地质差异性[J].石油学报,2009,30(1):1-6[Deng Yunhua.Analysis on differences of pe-troleum type and geological conditions between two depression belts inChina offshore[J].Acta Petrolei Sinica,2009,30(1):1-6]
4陈志勇.丽水、椒江凹陷油气潜力分析和勘探突破口的选择[J].中国海上油气:地质,1997,11(6):451-458[Chen Zhiyong.Analy-sis of hydrocarbon potential and selection of exploration prospect ofLishui and Jiaojiang sags[J].China Offshore Oil and Gas:Geology,1997,11(6):451-458]
5陈志勇,吴培康,吴志轩.丽水凹陷石油地质特征及勘探前景[J].中国海上油气:地质,2000,14(6):384-391[Chen Zhiyong,Wu Peikang,Wu Zhixuan.Petroleum geology and exploration potentialof Lishui sag[J].China Offshore Oil and Gas:Geoligy,2000,14(6):384-391]
6靳久强,宋建国.中国板块构造对含油气盆地演化和油气分布特征的控制[J].石油与天然气地质,2005,26(1):2-8[Jin Ji-uqiang,Song Jianguo.Control of plate tectonics over evolution of petro-liferous basins and characteristic of oil and gas distribution in China[J].Oil&Gas Geology,2005,26(1):2-8]
7贾军涛,郑洪波.东海的形成与构造演化[J].海洋地质动态,2010,26(1):1-5[Jia Juntao,Zheng Hongbo.Formation and tectonicevolution of the East China Sea[J].Marine Geology Letters,2010,26(1):1-5]
8郑求根,周祖翼,蔡立国,等.东海陆架盆地中新生代构造背景及演化[J].石油与天然气地质,2005,26(2):197-201[Zheng Qi-ugen,Zhou Zuyi,Cai Liguo,et al.Meso-Cenozoic tectonic setting andevolution of East China Sea shelf basin[J].Oil and Gas Geology,2005,26(2):197-201]
9姜涌泉.浅析东海陆架盆地沉积作用的主要控制因素[J].南方油气地质,1994,1(1):68-75[Jiang Yongquan.Analysis for the mainfactors controlling sedimentation in East China Sea Basin[J].SouthChina Petroleum Geology,1994,1(1):68-75]
10周士科,徐长贵.轴向重力流沉积:一种重要的深水储层——以东海盆地丽水凹陷明月峰组为例[J].地质科技情报,2006,25(5):57-62[Zhou Shike,Xu Changgui.One kind of important deep-water reservoir:The longitudinal gravity current sediments:A casestudy in Mingyuefeng Formation in Lishui Sag,East China Sea Basin[J].Geological Science and Technology Information,2006,25(5):57-62]
11靳久强,宋建国.中国板块构造对含油气盆地演化和油气分布特征的控制[J].石油与天然气地质,2005,26(1):2-8[Jin Ji-uqiang,Song Jianguo.Control of plate tectonics over evolution of pet-roliferous basins and characteristic of oil and gas distribution in China[J].Oil&Gas Geology,2005,26(1):2-8]
12姜亮,李保华,钟石兰,等.东海陆架盆地台北坳陷月桂峰组生物地层及古环境[J].海洋地质与第四纪地质,2004,24(1):37-42[Jiang Liang,Li Baohua,Zhong Shilan,et al.Biostratigraphy andpaleoenvironment of the Yueguifeng Formation in the Taipei depressionof the continental shelf basin of the east China sea[J].Marine Geolo-gy and Quaternary Geology,2004,24(1):37-42]
13弗里德曼G M,桑德斯J E.沉积学原理[M].北京:科学出版社,1987:252-276[Friedman G M,Saunders J E.Principles of Sedimen-tology[M].Beijing:Science Press,1987:252-276]
14冯增昭,赵澄林.沉积岩石学[M].北京:石油工业出版社,1993:101-112[Feng Zengzhao,Zhao Chenglin.Sedimentary Petrolo-gy[M].Beijing:Petroleum Industry Press,1993:101-112]
15 Vails C K.Sequence Stratigraphic Principle(integrated analysis ofsea level changes)[M].Translated by Xu Huida,et al.Beijing:Petroleum Industry Press,1993:47-254
16黄锋,李志荣,廖玲,等.利用地震资料进行沉积相分析[J].物探化探计算技术,2003,25(3):197-201[Huang Feng,Li Zhi-rong,Liao Ling,et al.Sedimentary facies analysis using seismic data[J].Computing Techniques for Geophysical and Geochemical Explo-ration,2003,25(3):197-201]
17贾成业,夏斌,王核,等.东海陆架盆地丽水凹陷构造演化及油气地质分析[J].天然气地球科学,2006,17(3):397-401[JiaChengye,Xia Bin,Wang He,et al.Characteristic of tectonic evolu-tion and petroleum geology in Lishui sag,east China sea basin[J].Natural Gas Geoscience,2006,17(3):397-401]
2龚再升,李思田,谢泰俊,等.南海北部大陆边缘盆地分析与油气聚集[M].北京:科学出版社,1997[Gong Zaisheng,Li Sitian,XieTaijun,et al.Continental Margin Basin Analysis and Hydrocarbon Ac-cumulation of the Northern South China Sea[M].Beijing:SciencePress,1997]
3邓运华.试论中国近海两个坳陷带油气地质差异性[J].石油学报,2009,30(1):1-6[Deng Yunhua.Analysis on differences of pe-troleum type and geological conditions between two depression belts inChina offshore[J].Acta Petrolei Sinica,2009,30(1):1-6]
4陈志勇.丽水、椒江凹陷油气潜力分析和勘探突破口的选择[J].中国海上油气:地质,1997,11(6):451-458[Chen Zhiyong.Analy-sis of hydrocarbon potential and selection of exploration prospect ofLishui and Jiaojiang sags[J].China Offshore Oil and Gas:Geology,1997,11(6):451-458]
5陈志勇,吴培康,吴志轩.丽水凹陷石油地质特征及勘探前景[J].中国海上油气:地质,2000,14(6):384-391[Chen Zhiyong,Wu Peikang,Wu Zhixuan.Petroleum geology and exploration potentialof Lishui sag[J].China Offshore Oil and Gas:Geoligy,2000,14(6):384-391]
6靳久强,宋建国.中国板块构造对含油气盆地演化和油气分布特征的控制[J].石油与天然气地质,2005,26(1):2-8[Jin Ji-uqiang,Song Jianguo.Control of plate tectonics over evolution of petro-liferous basins and characteristic of oil and gas distribution in China[J].Oil&Gas Geology,2005,26(1):2-8]
7贾军涛,郑洪波.东海的形成与构造演化[J].海洋地质动态,2010,26(1):1-5[Jia Juntao,Zheng Hongbo.Formation and tectonicevolution of the East China Sea[J].Marine Geology Letters,2010,26(1):1-5]
8郑求根,周祖翼,蔡立国,等.东海陆架盆地中新生代构造背景及演化[J].石油与天然气地质,2005,26(2):197-201[Zheng Qi-ugen,Zhou Zuyi,Cai Liguo,et al.Meso-Cenozoic tectonic setting andevolution of East China Sea shelf basin[J].Oil and Gas Geology,2005,26(2):197-201]
9姜涌泉.浅析东海陆架盆地沉积作用的主要控制因素[J].南方油气地质,1994,1(1):68-75[Jiang Yongquan.Analysis for the mainfactors controlling sedimentation in East China Sea Basin[J].SouthChina Petroleum Geology,1994,1(1):68-75]
10周士科,徐长贵.轴向重力流沉积:一种重要的深水储层——以东海盆地丽水凹陷明月峰组为例[J].地质科技情报,2006,25(5):57-62[Zhou Shike,Xu Changgui.One kind of important deep-water reservoir:The longitudinal gravity current sediments:A casestudy in Mingyuefeng Formation in Lishui Sag,East China Sea Basin[J].Geological Science and Technology Information,2006,25(5):57-62]
11靳久强,宋建国.中国板块构造对含油气盆地演化和油气分布特征的控制[J].石油与天然气地质,2005,26(1):2-8[Jin Ji-uqiang,Song Jianguo.Control of plate tectonics over evolution of pet-roliferous basins and characteristic of oil and gas distribution in China[J].Oil&Gas Geology,2005,26(1):2-8]
12姜亮,李保华,钟石兰,等.东海陆架盆地台北坳陷月桂峰组生物地层及古环境[J].海洋地质与第四纪地质,2004,24(1):37-42[Jiang Liang,Li Baohua,Zhong Shilan,et al.Biostratigraphy andpaleoenvironment of the Yueguifeng Formation in the Taipei depressionof the continental shelf basin of the east China sea[J].Marine Geolo-gy and Quaternary Geology,2004,24(1):37-42]
13弗里德曼G M,桑德斯J E.沉积学原理[M].北京:科学出版社,1987:252-276[Friedman G M,Saunders J E.Principles of Sedimen-tology[M].Beijing:Science Press,1987:252-276]
14冯增昭,赵澄林.沉积岩石学[M].北京:石油工业出版社,1993:101-112[Feng Zengzhao,Zhao Chenglin.Sedimentary Petrolo-gy[M].Beijing:Petroleum Industry Press,1993:101-112]
15 Vails C K.Sequence Stratigraphic Principle(integrated analysis ofsea level changes)[M].Translated by Xu Huida,et al.Beijing:Petroleum Industry Press,1993:47-254
16黄锋,李志荣,廖玲,等.利用地震资料进行沉积相分析[J].物探化探计算技术,2003,25(3):197-201[Huang Feng,Li Zhi-rong,Liao Ling,et al.Sedimentary facies analysis using seismic data[J].Computing Techniques for Geophysical and Geochemical Explo-ration,2003,25(3):197-201]
17贾成业,夏斌,王核,等.东海陆架盆地丽水凹陷构造演化及油气地质分析[J].天然气地球科学,2006,17(3):397-401[JiaChengye,Xia Bin,Wang He,et al.Characteristic of tectonic evolu-tion and petroleum geology in Lishui sag,east China sea basin[J].Natural Gas Geoscience,2006,17(3):397-401]
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