渤海湾盆地渤中凹陷古近系沉积体系演化及物源分析
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摘要
综合运用地质、测井、地震及分析化验等资料,对渤海湾盆地渤中凹陷古近系沉积体系进行了较深入的研究,研究表明渤中凹陷古近系的沉积体系主要受构造升降和湖平面变化的控制,经历了3期裂陷和湖侵,发育5套沉积体系,其中沙河街组沉积时期为裂陷期,以扇三角洲、湖底扇沉积为主,并发育特征的滩坝及浅水台地相沉积;东营组沉积时期为湖侵期,主要发育大型湖泊三角洲沉积,并逐渐向辫状河相过渡。构造及沉积体系分析认为,沙三段沉积时期物源丰富,主要来自石臼坨凸起、渤南和庙西凸起,沙一、二段沉积时期物源有限,东三沉积期物源主要来自石臼坨和沙东南凸起,东二沉积期大面积的湖侵使得本区处于浅湖-半深湖环境,凹陷周边大量古水系将石臼坨凸起、沙垒田凸起的物源带入凹陷中沉积,使得大型三角洲叠覆体广泛发育。
Comprehensive research is applied to sedimentary system of Paleogene in Bozhong sag,Bohai Bay through making use of data on geology,well logging and sample testing synthetically,and the results show that sedimentary system of Paleogene is mainly controlled by structural movement and change of lake surface,and has experienced 3 phases of rift and intrusion of lake.Lower Tertiary(Paleogene) is divided into Shahejie Formation and Dongying Formation;Shahejie Formation can be divided into 4 members,namely Sha 1,2,3,and 4;Dongying Formation can be divided into upper Dongying member and lower Dongying member,or into 3 members,that is,Dong 1,2,and 3.The main sedimentary facies of lower Tertiary is sublacustrine fan,fan-delta,delta,turbidite fan,beach bar and carbonate beach bar.In Sha 4-Kongdian period,that is the beginning of rift,sedimentary facies are mainly shallow lacustrine facies;In Sha 3 period,an intensive rifting period,sedimentary facies are fan delta and turbidite fan;In Sha 2-1 period,lacustrine basin began expanding and sedimentary facies are fan delta,sublacustrine fan and clastic beach bar and shallow water platform;during Dong 3 period,that is the beginning of lacustrine basin expansion,fan,fan delta and sublacustrine fan are the main facies;during Dong 2 period,that is the expansion period of lacustrine basin,gigantic lacustrine deltas are prosperous;Dong 1 period was a shrinking period of lacustrine fan,sediments delta plain and braided river were formed,and Bozhong sag was changing from rift to depression.Analysis of structure and sedimentary system indicated that sedimentary source of Sha 3 period was very abundant,and mainly came from Shijiutuo,Bonan and Miaoxi lobes.Sedimentary source became limited during Sha 1 and Sha 2 periods.The main sedimentary source came from Shijiutuo and Bodongnan lobes.During Dong 2 period,Bozhong sag was in the environment of shallow lake-half-deep lake because of intrusion of lake,when rich sediments were carried into the sag by ancient water systems to have large-scale fan-delta developed.
Comprehensive research is applied to sedimentary system of Paleogene in Bozhong sag,Bohai Bay through making use of data on geology,well logging and sample testing synthetically,and the results show that sedimentary system of Paleogene is mainly controlled by structural movement and change of lake surface,and has experienced 3 phases of rift and intrusion of lake.Lower Tertiary(Paleogene) is divided into Shahejie Formation and Dongying Formation;Shahejie Formation can be divided into 4 members,namely Sha 1,2,3,and 4;Dongying Formation can be divided into upper Dongying member and lower Dongying member,or into 3 members,that is,Dong 1,2,and 3.The main sedimentary facies of lower Tertiary is sublacustrine fan,fan-delta,delta,turbidite fan,beach bar and carbonate beach bar.In Sha 4-Kongdian period,that is the beginning of rift,sedimentary facies are mainly shallow lacustrine facies;In Sha 3 period,an intensive rifting period,sedimentary facies are fan delta and turbidite fan;In Sha 2-1 period,lacustrine basin began expanding and sedimentary facies are fan delta,sublacustrine fan and clastic beach bar and shallow water platform;during Dong 3 period,that is the beginning of lacustrine basin expansion,fan,fan delta and sublacustrine fan are the main facies;during Dong 2 period,that is the expansion period of lacustrine basin,gigantic lacustrine deltas are prosperous;Dong 1 period was a shrinking period of lacustrine fan,sediments delta plain and braided river were formed,and Bozhong sag was changing from rift to depression.Analysis of structure and sedimentary system indicated that sedimentary source of Sha 3 period was very abundant,and mainly came from Shijiutuo,Bonan and Miaoxi lobes.Sedimentary source became limited during Sha 1 and Sha 2 periods.The main sedimentary source came from Shijiutuo and Bodongnan lobes.During Dong 2 period,Bozhong sag was in the environment of shallow lake-half-deep lake because of intrusion of lake,when rich sediments were carried into the sag by ancient water systems to have large-scale fan-delta developed.
引文
[1]中国石油地质志编委会.中国石油地质志,第十六卷(上册)[M].北京:石油工业出版社,1990:32-161.[Editing Commit-tee of Petroleum Geology of China.Petroleum Geology of Chi-na(Vol.16)[M].Beijing:Petroleum Industrial Press,1990:32-161.]
[2]龚再生.中国近海大油气田[M].北京:石油工业出版社,1997.[GONG Zai-sheng.Large Scale of Oil and Gas Fields,Offshore of China[M].Beijing:Petroleum Industrial Press,1997.]
[3]龚再生.中国近海含油气盆地新构造运动与油气成藏[J].地球科学—中国地质大学学报,2004,29(5):513-517.[GONGZai-sheng.Neotectonics and petroleum accumulation in off-shore Chinese basins[J].Earth Science-Journal of China Uni-versity of Geosciences,2004,29(5):513-517.]
[4]王涛.中国东部裂谷盆地油气藏地质[M].北京:石油工业出版社,1996.[WANG Tao.Geology of Oil and Gas Reservoir inRift Basin,East of China[M].Beijing:Petroleum IndustrialPress,1996.]
[5]金振奎,邹元荣,由伟丰,等.渤海湾盆地北部奥陶纪岩相古地理[J].沉积学报,2002,20(1):13-19.[JIN Zhen-kui,ZOUYuan-rong,YOU Wei-feng,et al.Ordovician lithofacies pa-leogeography of North Bohai Bay Basin[J].Acta Sedimento-logica Sinica,2002,20(1):13-19.]
[6]高喜龙,肖贤明,赵必强,等.渤海湾盆地渤中凹陷下第三系烃源岩生烃史[J].沉积学报,2004,22(2):359-364.[GAO Xi-long,XIAO Xian-ming,ZHAO Bi-qiang,et al.Petroleumgeneration history of Lower Tertiary source rocks from theBozhong Depression of the Bohai Bay Basin[J].Acta Sedimen-tologica Sinica,2004,22(2):359-364.]
[7]张功成,朱伟林,邵磊.渤海海域及邻区拉分构造与油气勘探领域[J].石油学报,2001,22(2):14-18.[ZHANG Gong-cheng,ZHU Wei-lin,SHAO Lei.Pull-apart tectonic and hy-drocarbon prospecting in Bohai Bay and its nearby area[J].Acta Petrolet Sinica,2001,22(2):14-18.]
[8]朱伟林,葛建党.渤海海域天然气勘探前景分析[J].石油学报,2001,22(2):8-13.[ZHU Wei-lin,GE Jian-dang,et al.Gasexploration potential in offshore Bohai Bay Basin[J].Acta Pe-trolet Sinica,2001,22(2):8-13.]
[9]蔡东升,罗毓晖,武文来,等.渤海浅层构造变形特征、成因机理与渤中坳陷及其周围油气富集的关系[J].中国海上油气(地质),2001,15(1):35-43.[CAI Dong-sheng,LUO Yu-hui,WUWen-lai,et al.Shallow tectonic deformation and its relation-ship to hydrocarbon enrichment in Bozhong Depression and ad-jacent areas,Bohai Bay Basin[J].China Offshore Oil and Gas(Geology),2001,15(1):35-43.]
[10]李丽霞.渤中地区第三系碎屑岩储层成岩作用研究[J].中国海上油气(地质),2001,15(2):111-119.[LI Li-xia.The Dia-genesis model of Tertiary sandstone reservoir in Bozhong area[J].China Offshore Oil and Gas(Geology),2001,15(2):111-119.]
[11]何仕斌,朱伟林,李丽霞.渤中坳陷沉积演化和上第三系储盖组合分析[J].石油学报,2001,22(2):38-43.[HE Shi-bin,ZHU Wei-lin,LI Li-xia.Sedimentary evolution and Neogenereservoir-seal assemblage analysis of Bozhong Depression[J].Acta Petrolet Sinica,2001,22(2):38-43.]
[12]赵澄林.沉积学原理[M].北京:石油工业出版社,2001:87-94.[ZHAO Cheng-lin.Principle of Sedimentology[M].Bei-jing:Petroleum Industrial Press,2001:87-94.]
[13]杨玉卿.渤海湾中部南堡35-2地区新第三系河流沉积及油气勘探意义[J].古地理学报,2001,3(4):77-84.[YANG Yu-qing.River deposits and its significance of exploration in up-per Tertiary in Nanbao 35-2 area of central part of Bohai Bay[J].Journal of Palaeogeography,2001,3(4):77-84.]
[14]郝芳,蔡东升.渤中坳陷超压-构造活动联控型流体流动与油气快速成藏[J].地球科学—中国地质大学学报,2004,29(5):518-523.[HAO Fang,CAI Dong-sheng.Overpressuretectonic activity controlled fluid flow and rapid petroleum ac-cumulation in Bozhong Depression,Bohai Bay Basin[J].Earth Science-Journal of China University of Geosciences,2004,29(5):518-523.]
[15]姚光庆,陈红汉,何仕斌.渤中地区第三系储层地质特征研究[J].中国海上油气(地质),2001,15(4):249-253.[YAOGuang-qing,CHEN Hong-han,HE Shi-bin.Geological char-acteristics of Tertiary reservoirs in Bozhong area[J].ChinaOffshore Oil and Gas(Geology),2001,15(4):249-253.]
[16]杨香华,陈红汉,叶加仁,等.渤中凹陷大型湖泊三角洲的发育特征及油气勘探前景[J].中国海上油气(地质),2000,14(4):225-232.[YANG Xiang-hua,CHEN Hong-han,YE Jia-ren,et al.Characteristics and exploration potential of large scalelacustrine delta in Bozhong Depression[J].China OffshoreOil and Gas(Geology),2000,14(4):225-232.]
[2]龚再生.中国近海大油气田[M].北京:石油工业出版社,1997.[GONG Zai-sheng.Large Scale of Oil and Gas Fields,Offshore of China[M].Beijing:Petroleum Industrial Press,1997.]
[3]龚再生.中国近海含油气盆地新构造运动与油气成藏[J].地球科学—中国地质大学学报,2004,29(5):513-517.[GONGZai-sheng.Neotectonics and petroleum accumulation in off-shore Chinese basins[J].Earth Science-Journal of China Uni-versity of Geosciences,2004,29(5):513-517.]
[4]王涛.中国东部裂谷盆地油气藏地质[M].北京:石油工业出版社,1996.[WANG Tao.Geology of Oil and Gas Reservoir inRift Basin,East of China[M].Beijing:Petroleum IndustrialPress,1996.]
[5]金振奎,邹元荣,由伟丰,等.渤海湾盆地北部奥陶纪岩相古地理[J].沉积学报,2002,20(1):13-19.[JIN Zhen-kui,ZOUYuan-rong,YOU Wei-feng,et al.Ordovician lithofacies pa-leogeography of North Bohai Bay Basin[J].Acta Sedimento-logica Sinica,2002,20(1):13-19.]
[6]高喜龙,肖贤明,赵必强,等.渤海湾盆地渤中凹陷下第三系烃源岩生烃史[J].沉积学报,2004,22(2):359-364.[GAO Xi-long,XIAO Xian-ming,ZHAO Bi-qiang,et al.Petroleumgeneration history of Lower Tertiary source rocks from theBozhong Depression of the Bohai Bay Basin[J].Acta Sedimen-tologica Sinica,2004,22(2):359-364.]
[7]张功成,朱伟林,邵磊.渤海海域及邻区拉分构造与油气勘探领域[J].石油学报,2001,22(2):14-18.[ZHANG Gong-cheng,ZHU Wei-lin,SHAO Lei.Pull-apart tectonic and hy-drocarbon prospecting in Bohai Bay and its nearby area[J].Acta Petrolet Sinica,2001,22(2):14-18.]
[8]朱伟林,葛建党.渤海海域天然气勘探前景分析[J].石油学报,2001,22(2):8-13.[ZHU Wei-lin,GE Jian-dang,et al.Gasexploration potential in offshore Bohai Bay Basin[J].Acta Pe-trolet Sinica,2001,22(2):8-13.]
[9]蔡东升,罗毓晖,武文来,等.渤海浅层构造变形特征、成因机理与渤中坳陷及其周围油气富集的关系[J].中国海上油气(地质),2001,15(1):35-43.[CAI Dong-sheng,LUO Yu-hui,WUWen-lai,et al.Shallow tectonic deformation and its relation-ship to hydrocarbon enrichment in Bozhong Depression and ad-jacent areas,Bohai Bay Basin[J].China Offshore Oil and Gas(Geology),2001,15(1):35-43.]
[10]李丽霞.渤中地区第三系碎屑岩储层成岩作用研究[J].中国海上油气(地质),2001,15(2):111-119.[LI Li-xia.The Dia-genesis model of Tertiary sandstone reservoir in Bozhong area[J].China Offshore Oil and Gas(Geology),2001,15(2):111-119.]
[11]何仕斌,朱伟林,李丽霞.渤中坳陷沉积演化和上第三系储盖组合分析[J].石油学报,2001,22(2):38-43.[HE Shi-bin,ZHU Wei-lin,LI Li-xia.Sedimentary evolution and Neogenereservoir-seal assemblage analysis of Bozhong Depression[J].Acta Petrolet Sinica,2001,22(2):38-43.]
[12]赵澄林.沉积学原理[M].北京:石油工业出版社,2001:87-94.[ZHAO Cheng-lin.Principle of Sedimentology[M].Bei-jing:Petroleum Industrial Press,2001:87-94.]
[13]杨玉卿.渤海湾中部南堡35-2地区新第三系河流沉积及油气勘探意义[J].古地理学报,2001,3(4):77-84.[YANG Yu-qing.River deposits and its significance of exploration in up-per Tertiary in Nanbao 35-2 area of central part of Bohai Bay[J].Journal of Palaeogeography,2001,3(4):77-84.]
[14]郝芳,蔡东升.渤中坳陷超压-构造活动联控型流体流动与油气快速成藏[J].地球科学—中国地质大学学报,2004,29(5):518-523.[HAO Fang,CAI Dong-sheng.Overpressuretectonic activity controlled fluid flow and rapid petroleum ac-cumulation in Bozhong Depression,Bohai Bay Basin[J].Earth Science-Journal of China University of Geosciences,2004,29(5):518-523.]
[15]姚光庆,陈红汉,何仕斌.渤中地区第三系储层地质特征研究[J].中国海上油气(地质),2001,15(4):249-253.[YAOGuang-qing,CHEN Hong-han,HE Shi-bin.Geological char-acteristics of Tertiary reservoirs in Bozhong area[J].ChinaOffshore Oil and Gas(Geology),2001,15(4):249-253.]
[16]杨香华,陈红汉,叶加仁,等.渤中凹陷大型湖泊三角洲的发育特征及油气勘探前景[J].中国海上油气(地质),2000,14(4):225-232.[YANG Xiang-hua,CHEN Hong-han,YE Jia-ren,et al.Characteristics and exploration potential of large scalelacustrine delta in Bozhong Depression[J].China OffshoreOil and Gas(Geology),2000,14(4):225-232.]
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