蓬莱19-3油田西北斜坡带构造特征及控藏作用
|
摘要
为探索蓬莱19-3油田西北斜坡带的勘探潜力,根据邻区已钻井和精细的地震资料解释,采用断裂几何样式分析及构造恢复方法对蓬莱19-3油田西北斜坡带的断裂成因、构造演化及其控藏作用进行分析。结果显示:在平面上主要发育NE(NNE)向及NW(近EW)向断层,其走向、倾向及垂向上的搭接关系主要受区域应力及地层厚度等因素控制,在不同构造部位体现不同的特征。揭示了3个关键期区域构造应力在本区的叠加,即早白垩世(燕山期中期)的拉张,始新世晚期的右行走滑及上新世—第四纪新构造运动的拉张。早白垩世发育的基底先存断裂控制了古构造脊的形成,为本区油气横向输导提供必要条件,上新世—第四纪新构造运动发育的贯通式切脊断裂是油气的垂向运移的有利通道,其活动期是渤海重要的成藏期,预示本区具有良好的勘探潜力。
In order to assess the hydrocarbon potential in the northwest slope zone of the Penglai 19-3 Oilfield,well data and seismic data have been collected to study the fracture characteristics,tectonic evolution and reservoir formation history through fault geometry description and tectonic reconstruction.Results show that the trend,dip direction and bonding relation of the NE(NNE)and NW(nearly EW)trending faults are mainly dependant on regional stress and stratigraphic thickness,as well as tectonic positions.As far as the superposition of regional stress is considered,there are three key periods,i.e.pulling apart in early Cretaceous(Yanshanian period),dextral strike-sliping in late Eocene and pulling apart by neotectonic movement from Pliocene to Quaternary.Structural ridges are controlled by pre-existing basement faults in early Cretaceous,which created necessary conduits for hydrocarbon transverse migration.Drive-through type fault on structural ridge developed by neotectonic movement from Pliocene to Quaternary acts as favorable pathways for vertical migration of hydrocarbon.The active stage is also the important hydrocarbon accumulation period in Bohai,suggesting great potential for hydrocarbon exploration.
In order to assess the hydrocarbon potential in the northwest slope zone of the Penglai 19-3 Oilfield,well data and seismic data have been collected to study the fracture characteristics,tectonic evolution and reservoir formation history through fault geometry description and tectonic reconstruction.Results show that the trend,dip direction and bonding relation of the NE(NNE)and NW(nearly EW)trending faults are mainly dependant on regional stress and stratigraphic thickness,as well as tectonic positions.As far as the superposition of regional stress is considered,there are three key periods,i.e.pulling apart in early Cretaceous(Yanshanian period),dextral strike-sliping in late Eocene and pulling apart by neotectonic movement from Pliocene to Quaternary.Structural ridges are controlled by pre-existing basement faults in early Cretaceous,which created necessary conduits for hydrocarbon transverse migration.Drive-through type fault on structural ridge developed by neotectonic movement from Pliocene to Quaternary acts as favorable pathways for vertical migration of hydrocarbon.The active stage is also the important hydrocarbon accumulation period in Bohai,suggesting great potential for hydrocarbon exploration.
引文
[1]吕丁友,侯东梅,杨庆红,等.渤南低凸起西段构造成因机制与油气成藏规律研究[J].中国海上油气,2011,23(4):229-233.
[2]于海波,王德英,牛成民,等.渤海海域渤南低凸起碳酸盐岩潜山储层特征及形成机制[J].石油实验地质,2015,37(2):150-156.
[3]曾选萍,茆利,王玉静,等.渤南低凸起潜山岩性识别及储集性能预测[J].特种油气藏,2010,17(3):27-30.
[4]王广源,官大勇,刘朋波,等.渤海海域渤南低凸起中段新近系油气成藏的主控因素[J].海洋地质前沿,2017,33(2):35-41.
[5]刘乐.渤南低凸起西段变换构造特征及油气聚集[D].北京:中国石油大学,2009.
[6] Liu G.The Cenozoic rift system of the North China Plain and the deep internal process[J].Tectonophysics,1987,133(3):277-285.
[7] Fu Z X,Liu J,Liu G P.On the long-term seismic hazard analysis in the Zhangjiakou-Penglai seismotectonic zone,China[J].Tectonophysics,2004,390(1-4):75-83.
[8]索艳慧,李三忠,刘鑫,等.中国东部NWW向活动断裂带构造特征:以张家口—蓬莱断裂带为例[J].岩石学报,2013,29(3):953-966.
[9]高战武,徐杰,宋长青,等.张家口—蓬莱断裂带的分段特征[J].华北地震科学,2001,19(1):35-42.
[10]王国纯.郯庐断裂与渤海海域反转构造及花状构造[J].中国海上油气,1998,12(5):289-295.
[11]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,2001,15(1):35-43.
[12]龚再升,蔡东升,张功成.郯庐断裂对渤海海域东部油气成藏的控制作用[J].石油学报,2007,28(4):1-10.
[13]余一欣,周心怀,徐长贵,等.渤海海域新生代断裂发育特征及形成机制[J].石油与天然气地质,2011,32(2):273-279.
[14]姜丽娜,邹华耀.郯庐断裂带渤中-渤南段新构造运动期断层活动与油气运聚[J].石油与天然气地质,2009,30(4):462-468.
[15]肖述光,韦阿娟,王粤川,等.郯庐断裂渤南段各分支新生代构造特征及其对油气聚集的控制作用[J].地质科学,2017,52(2):375-389.
[16]韦阳娟.2017年区域研究新进展与有利勘探方向[R].天津:中海石油(中国)有限公司,2018.
[17]黄雷.渤海海域新近纪以来构造特征与演化及其油气赋存效应[D].西安:西北大学,2014.
[18]李伟,吴智平,赵文栋.渤海湾盆地区燕山期构造特征与盆地转型[J].地球物理学进展,2010,25(6):2068-2077.
[19] Lei H,Liu C Y,Zhou X H,et al.The important turning points during evolution of Cenozoic basin offshore the Bohai Sea:Evidence and regional dynamics analysis[J].中国科学:地球科学,2012,55(3):476-487.
[20]张参,官大勇,王明臣,等.渤海海域渤东低凸起中南段构造演化与油气成藏[J].东北石油大学学报,2014,38(6):68-75.
[21]彭靖淞,徐长贵,吴奎,等.郯庐断裂带辽东凸起的形成与古辽中洼陷的瓦解[J].石油学报,2015,36(3):274-285.
[22] Dooley T P,Schreurs G.Analogue modelling of intraplate strike-slip tectonics:A review and new experimental results[J].Tectonophysics,2012(574-575):1-71.
[23]刘朋波,官大勇,王昕,等.渤东地区新近系“脊-断”耦合控藏模式与定量表征[J].成都理工大学学报:自然科学版,2017,44(4):470-477.
[24]刘小平,周心怀,吕修祥,等.渤海海域油气分布特征及主控因素[J].石油与天然气地质,2009,30(4):497-502.
[25]龚再升.中国近海含油气盆地新构造运动与油气成藏[J].地球科学,2004,29(5):513-517.
[26]夏庆龙.渤海油田近10年地质认识创新与油气勘探发现[J].中国海上油气,2016,28(3):1-9.
[2]于海波,王德英,牛成民,等.渤海海域渤南低凸起碳酸盐岩潜山储层特征及形成机制[J].石油实验地质,2015,37(2):150-156.
[3]曾选萍,茆利,王玉静,等.渤南低凸起潜山岩性识别及储集性能预测[J].特种油气藏,2010,17(3):27-30.
[4]王广源,官大勇,刘朋波,等.渤海海域渤南低凸起中段新近系油气成藏的主控因素[J].海洋地质前沿,2017,33(2):35-41.
[5]刘乐.渤南低凸起西段变换构造特征及油气聚集[D].北京:中国石油大学,2009.
[6] Liu G.The Cenozoic rift system of the North China Plain and the deep internal process[J].Tectonophysics,1987,133(3):277-285.
[7] Fu Z X,Liu J,Liu G P.On the long-term seismic hazard analysis in the Zhangjiakou-Penglai seismotectonic zone,China[J].Tectonophysics,2004,390(1-4):75-83.
[8]索艳慧,李三忠,刘鑫,等.中国东部NWW向活动断裂带构造特征:以张家口—蓬莱断裂带为例[J].岩石学报,2013,29(3):953-966.
[9]高战武,徐杰,宋长青,等.张家口—蓬莱断裂带的分段特征[J].华北地震科学,2001,19(1):35-42.
[10]王国纯.郯庐断裂与渤海海域反转构造及花状构造[J].中国海上油气,1998,12(5):289-295.
[11]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,2001,15(1):35-43.
[12]龚再升,蔡东升,张功成.郯庐断裂对渤海海域东部油气成藏的控制作用[J].石油学报,2007,28(4):1-10.
[13]余一欣,周心怀,徐长贵,等.渤海海域新生代断裂发育特征及形成机制[J].石油与天然气地质,2011,32(2):273-279.
[14]姜丽娜,邹华耀.郯庐断裂带渤中-渤南段新构造运动期断层活动与油气运聚[J].石油与天然气地质,2009,30(4):462-468.
[15]肖述光,韦阿娟,王粤川,等.郯庐断裂渤南段各分支新生代构造特征及其对油气聚集的控制作用[J].地质科学,2017,52(2):375-389.
[16]韦阳娟.2017年区域研究新进展与有利勘探方向[R].天津:中海石油(中国)有限公司,2018.
[17]黄雷.渤海海域新近纪以来构造特征与演化及其油气赋存效应[D].西安:西北大学,2014.
[18]李伟,吴智平,赵文栋.渤海湾盆地区燕山期构造特征与盆地转型[J].地球物理学进展,2010,25(6):2068-2077.
[19] Lei H,Liu C Y,Zhou X H,et al.The important turning points during evolution of Cenozoic basin offshore the Bohai Sea:Evidence and regional dynamics analysis[J].中国科学:地球科学,2012,55(3):476-487.
[20]张参,官大勇,王明臣,等.渤海海域渤东低凸起中南段构造演化与油气成藏[J].东北石油大学学报,2014,38(6):68-75.
[21]彭靖淞,徐长贵,吴奎,等.郯庐断裂带辽东凸起的形成与古辽中洼陷的瓦解[J].石油学报,2015,36(3):274-285.
[22] Dooley T P,Schreurs G.Analogue modelling of intraplate strike-slip tectonics:A review and new experimental results[J].Tectonophysics,2012(574-575):1-71.
[23]刘朋波,官大勇,王昕,等.渤东地区新近系“脊-断”耦合控藏模式与定量表征[J].成都理工大学学报:自然科学版,2017,44(4):470-477.
[24]刘小平,周心怀,吕修祥,等.渤海海域油气分布特征及主控因素[J].石油与天然气地质,2009,30(4):497-502.
[25]龚再升.中国近海含油气盆地新构造运动与油气成藏[J].地球科学,2004,29(5):513-517.
[26]夏庆龙.渤海油田近10年地质认识创新与油气勘探发现[J].中国海上油气,2016,28(3):1-9.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |