歧北凹陷古近系构造坡折带对圈闭的控制作用
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摘要
应用三维地震、钻井和测井等资料,对歧北凹陷进行层序地层学研究。研究区古近系可划分为3个二级层序,11个三级层序。歧北凹陷斜坡区发育断裂坡折和挠曲坡折两种构造坡折带类型。坡折带的发育演化具有明显的阶段性和继承性:早期为断裂坡折带,晚期为挠曲坡折带。不同类型坡折带层序构成样式及内部体系域构成不同,断裂坡折带控制了低位扇三角洲砂体以及构造-岩性复合圈闭的发育,而挠曲坡折带除了对砂体有控制作用外,更突出地表现为对地层超覆以及岩性圈闭发育的控制。坡折带附近是非构造圈闭发育的有利部位,进一步勘探的潜力巨大。
The study of sequence stratigraphy is carried out in central Huanghua Depression using 3D seismic data,drilling,and well logging data.The Paleogene of the studied area can be divided into three second-order sequences,and 11 third-order sequences.Two kinds of structural slope-break are developed in the Qibei slope: faulted slope-break and flexural slope-break.The development and evolution of the slope-breaks are episodic and successive: in early period,it is faulted slope-break;in later period,it is flexural slope-break.Different kinds of slope-breaks have different sequence stratigraphic patterns and inner systems tracts.The faulted slope-breaks control the development of lowstand fan delta sandbodies and combination structural-lithologic traps,while the flexural slope-breaks not only control the development of sandbodies,but more apparently control the development of stratigraphic overlap and lithologic traps.The surrounding areas of the slope-breaks are favorable for the development of non-structural traps,and have great potential for exploration.
The study of sequence stratigraphy is carried out in central Huanghua Depression using 3D seismic data,drilling,and well logging data.The Paleogene of the studied area can be divided into three second-order sequences,and 11 third-order sequences.Two kinds of structural slope-break are developed in the Qibei slope: faulted slope-break and flexural slope-break.The development and evolution of the slope-breaks are episodic and successive: in early period,it is faulted slope-break;in later period,it is flexural slope-break.Different kinds of slope-breaks have different sequence stratigraphic patterns and inner systems tracts.The faulted slope-breaks control the development of lowstand fan delta sandbodies and combination structural-lithologic traps,while the flexural slope-breaks not only control the development of sandbodies,but more apparently control the development of stratigraphic overlap and lithologic traps.The surrounding areas of the slope-breaks are favorable for the development of non-structural traps,and have great potential for exploration.
引文
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[12]任建业,陆永潮,张青林.断陷盆地构造坡折带形成机制及其对层序发育样式的控制[J].地球科学:中国地质大学学报,2004,29(5):596-602.Ren Jianye,Lu Yongchao,Zhang Qinglin.Forming mechanism of structural slope-break and its control on sequence style in faulted basin[J].Earth Science:Journal of China University of Geosciences,2004,29(5):596-602.
[13]冯有良,李思田,解习农.陆相断陷盆地层序形成动力学及层序地层模式[J].地学前缘,2000,7(3):119-132.Feng Youliang,Li Sitian,Xie Xinong.Dynamics of sequence generation and sequence stratigraphic model in continental rift subsidence basin[J].Earth Science Frontiers,2000,7(3):119-132.
[14]纪友亮,杜金虎,赵贤正,等.饶阳凹陷下第三系层序类型及发育模式[J].沉积学报,2007,25(1):1-9.Ji Youliang,Du Jinhu,Zhao Xianzheng,et al.Sequence stratigraphy models and controlling factors of Eogene in Raoyang Depression[J].Acta Sedimentologic Sinica,2007,25(1):1-9.
[15]刘豪,王英民,王媛.坳陷湖盆坡折带特征及其对非构造圈闭的控制[J].石油学报,2004,25(2):30-35.Liu Hao,Wang Yingmin,Wang Yuan.Characteristics of slope breaks and their control on atectonic traps in downwarped lake basin[J].Acta Petrolei Sinica,2004,25(2):30-35.
[16]刘豪,王英民,王媛,等.大型坳陷湖盆坡折带的研究及其意义:以准噶尔盆地西北缘侏罗纪坳陷湖盆为例[J].沉积学报,2004,22(1):95-102.Liu Hao,Wang Yingmin,Wang Yuan,et al.Study on slope breaks in large down warped lake basins and its significance:A case study from Jurassic Lake in northwestern Junggar Basin[J].Acta Sedimentologica Sinica,2004,22(1):95-102.
[17]于洪枫,王英民,辛仁臣,等.东营凹陷八面河地区坡折带特征及其对地层岩性圈闭的控制作用[J].西安石油大学学报:自然科学版,2005,20(3):27-31.Yu Hongfeng,Wang Yingmin,Xin Renchen,et al.Patterns of the slope-breaks in Bamianhe area of Dongying Sag and the controls on the slope-breaks on subtle traps[J].Journal of Xi’an Shiyou University:Natural Science Edition,2005,20(3):27-31.
[18]赵乐强,宋国奇,宁方兴,等.济阳坳陷第三系油藏含油高度定量预测[J].石油勘探与开发,2010,37(1):26-31.Zhao Leqiang,Song Guoqi,Ning Fangxing,et al.Quantitative prediction of the oil-bearing height of Tertiary reservoirs in Jiyang Depression[J].Petroleum Exploration and Development,2010,37(1):26-31.
[19]张关龙,陈世悦,王海方.济阳坳陷二叠系储集层特征及其控制因素[J].石油勘探与开发,2009,36(5):575-582.Zhang Guanlong,Chen Shiyue,Wang Haifang.Characteristics and controlling factors of Permian reservoirs in Jiyang Depression[J].Petroleum Exploration and Development,2009,36(5):575-582.
[20]王青春,鲍志东,贺萍.辽河坳陷西部凹陷北区湖盆深陷期层序地层响应[J].石油勘探与开发,2010,37(1):11-20.Wang Qingchun,Bao Zhidong,He Ping.Sequence stratigraphic responses to the lacustrine basin deep-faulted period in the north area of the western sag,Liaohe Depression[J].Petroleum Exploration and Development,2010,37(1):11-20.
[21]陈广坡,王天奇,李林波,等.箕状断陷湖盆湖底扇特征及油气勘探:以二连盆地赛汉塔拉凹陷腾格尔组二段为例[J].石油勘探与开发,2010,37(1):63-69.Chen Guangpo,Wang Tianqi,Li Linbo,et al.Characteristics of sublacustrine fan in half-graben rift lake basin and its petroleum prospecting:Case study on the second member of Tenggeer Formation,Saihantala Sag,Erlian Basin[J].Petroleum Exploration and Development,2010,37(1):63-69.
[2]Van Wagoner J C,Mitchum R M,Campion K M,et al.Siliciclastic sequence stratigraphy in well logs,cores,and outcrops[M].Houston:AAPG Methods in Exploration,1990:1-55.
[3]Vail P R,Mitchum R M,Todd R G,et al.Seismic stratigraphy and global changes of sea level[J].AAPG Memoir,1997,26:49-212.
[4]Wescott W A.Channel and valley:difference in word or meaning[J].The Leading Edge,1997,16(6):867-873.
[5]Cohen A S.Tectonic-stratigraphic model for sedimentation in lake Tanganyika Africa[J].AAPG Memoir,1991,50:137-149.
[6]贾承造,赵政璋,杜金虎,等.中国石油重点勘探领域:地质认识、核心技术、勘探成效及勘探方向[J].石油勘探与开发,2008,35(4):385-396.Jia Chengzao,Zhao Zhengzhang,Du Jinhu,et al.PetroChina key exploration domains:Geological cognition,core technology,exploration effect and exploration direction[J].Petroleum Exploration and Development,2008,35(4):385-396.
[7]张守春,张林晔,查明,等.东营凹陷压力系统发育对油气成藏的控制[J].石油勘探与开发,2010,37(3):289-296.Zhang Shouchun,Zhang Linye,Zha Ming,et al.Control of pressure system development on reservoir formation in the Dongying Sag,Shengli Oilfield,East China[J].Petroleum Exploration and Development,2010,37(3):289-296.
[8]林畅松,潘元林,肖建新,等.“构造坡折带”:断陷盆地层序分析和油气预测的重要概念[J].地球科学:中国地质大学学报,2000,25(3):260-265.Lin Changsong,Pan Yuanlin,Xiao Jianxin,et al.Structural slope-break zone:Key concept for stratigraphic sequence analysis and petroleum forecasting in fault subsidence basins[J].Earth Science:Journal of China University of Geoscience,2000,25(3):260-265.
[9]林畅松,郑和荣,任建业,等.渤海湾盆地东营、沾化凹陷早第三纪同沉积断裂作用对沉积充填的控制[J].中国科学:D辑,2003,33(11):1025-1036.Lin Changsong,Zheng Herong,Ren Jianye,et al.Early Tertiary syndepositional fault’s control on deposition infilling in Dongying and Zhanhua depressions[J].Science in China:Series D,2003,33(11):1025-1036.
[10]王英明,金武弟,刘书会,等.断陷湖盆多级坡折带的成因类型、展布及其勘探意义[J].石油与天然气地质,2003,24(3):200-203.Wang Yingming,Jin Wudi,Liu Shuhui,et al.Genetic types,distribution and exploration significance of multistage slope breaks in rift lacustrine basin[J].Oil&Gas Geology,2003,24(3):200-203.
[11]任建业,张青林,陆永潮.东营凹陷弧形断裂坡折带系统及其对石油勘探与开发.油气勘探Vol.38 No.3低位域砂体的控制[J].沉积学报,2004,22(4):628-634.Ren Jianye,Zhang Qinglin,Lu Yongchao.Arc-shaped fault break slope system and its control on low stand systems sand bodies in Dongying Depression[J].Acta Sedimentologica Sinica,2004,22(4):628-634.
[12]任建业,陆永潮,张青林.断陷盆地构造坡折带形成机制及其对层序发育样式的控制[J].地球科学:中国地质大学学报,2004,29(5):596-602.Ren Jianye,Lu Yongchao,Zhang Qinglin.Forming mechanism of structural slope-break and its control on sequence style in faulted basin[J].Earth Science:Journal of China University of Geosciences,2004,29(5):596-602.
[13]冯有良,李思田,解习农.陆相断陷盆地层序形成动力学及层序地层模式[J].地学前缘,2000,7(3):119-132.Feng Youliang,Li Sitian,Xie Xinong.Dynamics of sequence generation and sequence stratigraphic model in continental rift subsidence basin[J].Earth Science Frontiers,2000,7(3):119-132.
[14]纪友亮,杜金虎,赵贤正,等.饶阳凹陷下第三系层序类型及发育模式[J].沉积学报,2007,25(1):1-9.Ji Youliang,Du Jinhu,Zhao Xianzheng,et al.Sequence stratigraphy models and controlling factors of Eogene in Raoyang Depression[J].Acta Sedimentologic Sinica,2007,25(1):1-9.
[15]刘豪,王英民,王媛.坳陷湖盆坡折带特征及其对非构造圈闭的控制[J].石油学报,2004,25(2):30-35.Liu Hao,Wang Yingmin,Wang Yuan.Characteristics of slope breaks and their control on atectonic traps in downwarped lake basin[J].Acta Petrolei Sinica,2004,25(2):30-35.
[16]刘豪,王英民,王媛,等.大型坳陷湖盆坡折带的研究及其意义:以准噶尔盆地西北缘侏罗纪坳陷湖盆为例[J].沉积学报,2004,22(1):95-102.Liu Hao,Wang Yingmin,Wang Yuan,et al.Study on slope breaks in large down warped lake basins and its significance:A case study from Jurassic Lake in northwestern Junggar Basin[J].Acta Sedimentologica Sinica,2004,22(1):95-102.
[17]于洪枫,王英民,辛仁臣,等.东营凹陷八面河地区坡折带特征及其对地层岩性圈闭的控制作用[J].西安石油大学学报:自然科学版,2005,20(3):27-31.Yu Hongfeng,Wang Yingmin,Xin Renchen,et al.Patterns of the slope-breaks in Bamianhe area of Dongying Sag and the controls on the slope-breaks on subtle traps[J].Journal of Xi’an Shiyou University:Natural Science Edition,2005,20(3):27-31.
[18]赵乐强,宋国奇,宁方兴,等.济阳坳陷第三系油藏含油高度定量预测[J].石油勘探与开发,2010,37(1):26-31.Zhao Leqiang,Song Guoqi,Ning Fangxing,et al.Quantitative prediction of the oil-bearing height of Tertiary reservoirs in Jiyang Depression[J].Petroleum Exploration and Development,2010,37(1):26-31.
[19]张关龙,陈世悦,王海方.济阳坳陷二叠系储集层特征及其控制因素[J].石油勘探与开发,2009,36(5):575-582.Zhang Guanlong,Chen Shiyue,Wang Haifang.Characteristics and controlling factors of Permian reservoirs in Jiyang Depression[J].Petroleum Exploration and Development,2009,36(5):575-582.
[20]王青春,鲍志东,贺萍.辽河坳陷西部凹陷北区湖盆深陷期层序地层响应[J].石油勘探与开发,2010,37(1):11-20.Wang Qingchun,Bao Zhidong,He Ping.Sequence stratigraphic responses to the lacustrine basin deep-faulted period in the north area of the western sag,Liaohe Depression[J].Petroleum Exploration and Development,2010,37(1):11-20.
[21]陈广坡,王天奇,李林波,等.箕状断陷湖盆湖底扇特征及油气勘探:以二连盆地赛汉塔拉凹陷腾格尔组二段为例[J].石油勘探与开发,2010,37(1):63-69.Chen Guangpo,Wang Tianqi,Li Linbo,et al.Characteristics of sublacustrine fan in half-graben rift lake basin and its petroleum prospecting:Case study on the second member of Tenggeer Formation,Saihantala Sag,Erlian Basin[J].Petroleum Exploration and Development,2010,37(1):63-69.
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