松辽盆地南部大情字井油田青二段油气成藏规律
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摘要
松辽盆地南部大情字井油田青二段具有良好的油气资源潜力。以大情字井油田为研究区,探求其油气成藏条件与分布规律。综合分析了岩心、录井、地震、测井等资料,运用"相-势-导三元控藏"理论,在对大情字井油田青二段沉积演化背景、沉积微相、储集层特征、压力势、流体势与输导体系特征进行研究的基础上,剖析各控藏要素及其配置关系对油气藏形成与分布的影响;指出"相-势-导"有利配置区,并提出以三角洲前缘砂体为主要储集岩的富烃凹陷成藏模式。研究认为:水下分流河道与河口坝砂体规模大,储集物性好,是有利沉积相带,凹陷的斜坡带是紧邻烃源灶的流体低势区,是油气运移的主要指向区,区内断层与层状砂岩的组合形成有利的"T"形输导体系;油气在流体势的驱动下,经"T"形输导体系运移至凹陷的斜坡带有利相带内汇聚成藏;区内油藏类型具分带特征:向斜西翼主要发育断层-岩性油气藏、断块油气藏;向斜东翼主要发育岩性上倾尖灭油气藏。
Qn2 of Daqingzijing oil field sees a great potential in oil and gas resources. In this paper,with Daqingzijing oil field as the study area,the formation mechanism of hydrocarbon reservoir is comprehensively analyzed,including studies of core,geology log,seismic and well log. With the "facies-potential-transport ternary reservoir controlling" theory,sedimentary facies,sedimentary evolution,storing characteristics,pressure potential,fluid potential,carrier system,and the correlation of these factors and hydrocarbon are discussed. A pool-forming pattern of hydrocarbon-rich depressions is proposed,with the reservoir rock of the depression as the delta front sandstone. It is suggested that the underwater distributary channel and the mouth bar sand of a large scale,with good reservoir properties,are favorable sedimentary facies. Slopes of depression belong the low-potential zone. Fault and bedded sandstone are combined,to form a T-passage system. Fluid potential drives hydrocarbons to flow through the T-passage system,to be accumulated in the high-quality facies. Reservoir formation is controlled by facies and potential and carrier system. Reservoir types in research area see a distribution of a zoning feature. The west slope of synclines sees more growth of fault-lithological and fault block oil pools. The east slope of synclines sees more growth of up-dip pinchout of sandstone-reservoir.
Qn2 of Daqingzijing oil field sees a great potential in oil and gas resources. In this paper,with Daqingzijing oil field as the study area,the formation mechanism of hydrocarbon reservoir is comprehensively analyzed,including studies of core,geology log,seismic and well log. With the "facies-potential-transport ternary reservoir controlling" theory,sedimentary facies,sedimentary evolution,storing characteristics,pressure potential,fluid potential,carrier system,and the correlation of these factors and hydrocarbon are discussed. A pool-forming pattern of hydrocarbon-rich depressions is proposed,with the reservoir rock of the depression as the delta front sandstone. It is suggested that the underwater distributary channel and the mouth bar sand of a large scale,with good reservoir properties,are favorable sedimentary facies. Slopes of depression belong the low-potential zone. Fault and bedded sandstone are combined,to form a T-passage system. Fluid potential drives hydrocarbons to flow through the T-passage system,to be accumulated in the high-quality facies. Reservoir formation is controlled by facies and potential and carrier system. Reservoir types in research area see a distribution of a zoning feature. The west slope of synclines sees more growth of fault-lithological and fault block oil pools. The east slope of synclines sees more growth of up-dip pinchout of sandstone-reservoir.
引文
[1]胡朝元.生油区控制油气田分布——中国东部陆相盆地进行区域勘探的有效理论[J].石油学报,1982(2):9-13.Hu Chaoyuan.Acta Petrolei Sinica,1982(2):9-13.
[2]赵靖舟.幕式成藏理论的提出及其勘探意义[J].石油实验地质,2005,27(4):315-325.Zhao Jingzhou.Petroleum Geology&Expeximent,2005,27(4):315-325.
[3]张树林.复式成藏动力学[J].现代地质,1997,11(4):522-528.Zhang Shulin.Geoscience,1997,11(4):522-528.
[4]伍松柏.东营凹陷“相—势”控藏作用原理分析及思索[J].海洋石油,2008,28(2):46-51.Wu Songbai.Offshore Oil,2008,28(2):46-51.
[5]张文朝,降栓奇,陈彦君,等.断陷盆地“相-势-导”成藏模式与油气成藏[J].石油学报,2008,29(5):680-693.Zhang Wenchao,Jiang Shuanqi,Chen Yanjun,et al.Acta Petrolei Sinica,2008,29(5):680-693.
[6]梁春秀,王永春,康伟力,等.现代勘探新技术在隐蔽油气藏勘探中的作用——松辽盆地大情字井超亿吨级油田的发现[J].中国石油勘探,2003,8(3):50-58.Liang Chunxiu,Wang Yongchun,Kang Weili,et al.China Petrleum Exploration,2003,8(3):50-58.
[7]杨明达,杨铭辉,唐振兴,等.松辽盆地南部大情字井地区油气分布控制因素分析[J].石油实验地质,2003,25(3):252-256.Yang Mingda,Yang Minghui,Tang Zhenxing,et al.Petroleum Geology&Expeximent,2003,25(3):252-256.
[8]张枝焕,吴聿元,俞凯,等.松辽盆地南部长岭地区青山口组原油的地球化学特征及油源分析[J].现代地质,2002,16(4):389-397.Zhang Zhihuan,Wu Yuyuan,Yu Kai,et al.Geoscience,2002,16(4):389-397.
[9]庞雄奇,李丕龙,张善文,等.陆相断陷盆地相-势耦合控藏作用及其基本模式[J].石油与天然气地质,2007,28(5):641-663.Pang Xiongqi,Li Pilong,Zhang Shanwen,et al.Oil&Gas Geology,2007,28(5):641-663.
[10]Hubbert M K.Entrapment of petroleum under hydrodynamic conditions[J].AAPG Bulletin,1953,37(8):1954-2026.
[11]Hubbert M K.The theory of ground-water motion[J].Journal of Geology,1940,48(8,Part1):785-944.
[12]王立武.松辽盆地保乾三角洲层序地层学及含油气系统研究[D].广州:中国科学院研究生院广州地球化学研究所,2004.Wang Liwu.Study on the sequence stratigraphy and the petroleum system Baoqian area in Songliao Basin[D].Guangzhou:Guangzhou Institute of Geochemistry,Chinese Academy of Sciences,2004.
[13]李明,赵一民,刘晓,等.松辽盆地南部长岭凹陷油气富集区分布特征[J].石油勘探与开发,2009,36(4):413-418.Li Ming,Zhao Yimin,Liu Xiao,et al.Petroleum Exploration and Development,2009,26(4):413-418.
[14]罗家群.泌阳凹陷流体势场演化特征及其对油气运聚控制作用[J].石油天然气学报,2009,31(2):237-240.Luo Jiaqun.Journal of Oil and Gas Technology,2009,31(2):237-240.
[15]李建忠,杨涛,王立武,等.松辽南部大情字井地区断裂构造特征及其控油作用[J].石油勘探与开发,2004,31(1):18-20.LI Jianzhong,Yang Tao,Wang Liwu,et al.Petroleum Exploration and Development,2004,31(1):18-20.
[2]赵靖舟.幕式成藏理论的提出及其勘探意义[J].石油实验地质,2005,27(4):315-325.Zhao Jingzhou.Petroleum Geology&Expeximent,2005,27(4):315-325.
[3]张树林.复式成藏动力学[J].现代地质,1997,11(4):522-528.Zhang Shulin.Geoscience,1997,11(4):522-528.
[4]伍松柏.东营凹陷“相—势”控藏作用原理分析及思索[J].海洋石油,2008,28(2):46-51.Wu Songbai.Offshore Oil,2008,28(2):46-51.
[5]张文朝,降栓奇,陈彦君,等.断陷盆地“相-势-导”成藏模式与油气成藏[J].石油学报,2008,29(5):680-693.Zhang Wenchao,Jiang Shuanqi,Chen Yanjun,et al.Acta Petrolei Sinica,2008,29(5):680-693.
[6]梁春秀,王永春,康伟力,等.现代勘探新技术在隐蔽油气藏勘探中的作用——松辽盆地大情字井超亿吨级油田的发现[J].中国石油勘探,2003,8(3):50-58.Liang Chunxiu,Wang Yongchun,Kang Weili,et al.China Petrleum Exploration,2003,8(3):50-58.
[7]杨明达,杨铭辉,唐振兴,等.松辽盆地南部大情字井地区油气分布控制因素分析[J].石油实验地质,2003,25(3):252-256.Yang Mingda,Yang Minghui,Tang Zhenxing,et al.Petroleum Geology&Expeximent,2003,25(3):252-256.
[8]张枝焕,吴聿元,俞凯,等.松辽盆地南部长岭地区青山口组原油的地球化学特征及油源分析[J].现代地质,2002,16(4):389-397.Zhang Zhihuan,Wu Yuyuan,Yu Kai,et al.Geoscience,2002,16(4):389-397.
[9]庞雄奇,李丕龙,张善文,等.陆相断陷盆地相-势耦合控藏作用及其基本模式[J].石油与天然气地质,2007,28(5):641-663.Pang Xiongqi,Li Pilong,Zhang Shanwen,et al.Oil&Gas Geology,2007,28(5):641-663.
[10]Hubbert M K.Entrapment of petroleum under hydrodynamic conditions[J].AAPG Bulletin,1953,37(8):1954-2026.
[11]Hubbert M K.The theory of ground-water motion[J].Journal of Geology,1940,48(8,Part1):785-944.
[12]王立武.松辽盆地保乾三角洲层序地层学及含油气系统研究[D].广州:中国科学院研究生院广州地球化学研究所,2004.Wang Liwu.Study on the sequence stratigraphy and the petroleum system Baoqian area in Songliao Basin[D].Guangzhou:Guangzhou Institute of Geochemistry,Chinese Academy of Sciences,2004.
[13]李明,赵一民,刘晓,等.松辽盆地南部长岭凹陷油气富集区分布特征[J].石油勘探与开发,2009,36(4):413-418.Li Ming,Zhao Yimin,Liu Xiao,et al.Petroleum Exploration and Development,2009,26(4):413-418.
[14]罗家群.泌阳凹陷流体势场演化特征及其对油气运聚控制作用[J].石油天然气学报,2009,31(2):237-240.Luo Jiaqun.Journal of Oil and Gas Technology,2009,31(2):237-240.
[15]李建忠,杨涛,王立武,等.松辽南部大情字井地区断裂构造特征及其控油作用[J].石油勘探与开发,2004,31(1):18-20.LI Jianzhong,Yang Tao,Wang Liwu,et al.Petroleum Exploration and Development,2004,31(1):18-20.
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