廊固凹陷的三维精细地质结构
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摘要
本文通过三维地震资料建立了廊固凹陷的三维精细地质结构。通过重建三维地质结构,可以更为直观的显示其真实地质结构形态。对廊固凹陷三维地质结构的分析表明,认为廊固凹陷新生代以来经历多期构造活动,形成了上、中、下3个构造层:下构造层为孔店组—沙四段,为裂陷初始期沉积;中构造层为沙三段—东营组,为强烈裂陷期沉积;上构造层为明化镇组—馆陶组,为坳陷期沉积。每个构造层的构造变形不相同。廊固凹陷构造比较复杂,根据规模及活动强烈程度可将其分为3级:Ⅰ级为控凹断层—大兴断层;Ⅱ级为控带断层,主要有桐柏镇断层、河西务断层以及旧州断层;Ⅲ级为控藏断层包括琥珀营、王居、杨税务、刘其营、半截河等断层。根据一级、二级断层,可以将廊固凹陷分为5个构造带与一个洼槽。
This paper has built the 3D fine geological structure which can show the real geological structure morphology directly by using 3D seismic data.After the analysis of 3D geological structure of Langgu sag,we think that Langgu sag has experience several tectonic movement after Cenozoic,so there are three structure layers;Lower structure layer is Kongdian Formation-the fourth Shahejie Formation at which time is chasmic beginning;Middle structure layer is the third Shahejie Formation-Dongying Formation at which time is strongly chasmic stage;Upper structure layer is Minghuazhen Formation-Guangtao Formation at which time is depression stage.The structure deformation of each structure layer is different.The structure of Langgu sag is complicate,and according to the scale,we divided into three grades:Grade One is sag-control fault which is Daxing fault;Grade Two is zone-control fault including Tongbaizhen fault,Hexiwu fault and Jiuzhou faul;Grade Three is reservoir-control fault including Hupoying fault,Wangju fault,Yangshuiwu fault,Liuqiying fault and Banjiehe fault,and so on.According to Grade One and Grade Two faults,Langgu sag can be divided into five structure zones and one low-trough.
This paper has built the 3D fine geological structure which can show the real geological structure morphology directly by using 3D seismic data.After the analysis of 3D geological structure of Langgu sag,we think that Langgu sag has experience several tectonic movement after Cenozoic,so there are three structure layers;Lower structure layer is Kongdian Formation-the fourth Shahejie Formation at which time is chasmic beginning;Middle structure layer is the third Shahejie Formation-Dongying Formation at which time is strongly chasmic stage;Upper structure layer is Minghuazhen Formation-Guangtao Formation at which time is depression stage.The structure deformation of each structure layer is different.The structure of Langgu sag is complicate,and according to the scale,we divided into three grades:Grade One is sag-control fault which is Daxing fault;Grade Two is zone-control fault including Tongbaizhen fault,Hexiwu fault and Jiuzhou faul;Grade Three is reservoir-control fault including Hupoying fault,Wangju fault,Yangshuiwu fault,Liuqiying fault and Banjiehe fault,and so on.According to Grade One and Grade Two faults,Langgu sag can be divided into five structure zones and one low-trough.
引文
① 周文等.2005． 廊固凹陷下第三系层序地层学及隐蔽油气藏勘探方向.成都埋工大学.内部科研报告.
② 华东石油学院.1987． 京津地区廊固凹陷地质-物探综合解释研究总结报告。
桂宝玲,何登发,闫福旺,张文君.2011． 伸展盆地复杂断块运动学平面复原--以渤海湾盆地廊坊-固安断陷为例.地质科学,46(2) :426-444．Gui Baoling,He Dengfa,Yan Fuwang and Zhang Wenjun.2011． Map-view restoration of kinematics of complex fault-blocks in extensional basin: Insights from the Langfang-Gu'an fault-sag in Bohaiwan Gulf Basin,China.Chinese Journal of Geology,46(2) : 426-444．
金凤鸣,傅恒,李仲东,周文.2006． 冀中坳陷廊固凹陷古近系层序地层与隐蔽油气藏勘探.矿物崭石,26(4) :75-82． Jin Fengming,Fu Heng,Li Zhongdong and Zhou Wen.2006． Sequence stratigraphy of paleogene and exploration of blind reservoirs in the Jizhong depression of Langgu subdepression.Journal of Mineralogy Petrology,26(4) : 75-82．
李德生.1980． 渤海湾含油气盆地的地质构造特征.石油学报,1(1) :12-19． Li Desheng.1980． Geology and structural characteristics of Bohai Bay,China.Acta Petrolei Sinica,1(1) : 12-19．
宋荣彩.2006． 陆相断陷盆地层序地层学与隐蔽油气藏模式研究--以廊固凹陷古近系为例(博士论文).成都:成都理工大学.1-148． Song Rongcai.2006． Sequence Stratigraphy and Subtle Oil-Gas Pool Mode Research in Continental Rift-Subsidence Basin: On the Case of Langgu Depression,Paleogene(PhD Dissertation).Chengdu : Chengdu University of Technology.1-148．
宋荣彩,张哨楠,李弢.2006． 廊固凹陷大兴断层对油气分布的控制研究.天然气工业,26(8) :30-33Song Rongcai,Zhang Shaonan and Li Tao.2006． Research on the hydrocarbon distribution controlled by Daxing fault in Langgu sag.Natural Gas Industry,26(8) : 30-33．
鲜强,李仲东,傅恒,宋荣彩,郑敬贵.2007． 廊固凹陷下第三系层序地层及构造演化.物探化探计算技术,29(3) :244-248． Xian Qiang,Li Zhongdong,Fu Heng,Song Rongcai and Zheng Jinggui.2007． Sequence stratigraphy and structural sequence evolvemenl of Langgu depression in Lower Tertiary.Computing Techniques for Geophysical and Geochemical Exploration,29(3) : 244-248．
赵红格,刘池洋.2002． 大兴断裂分段性研究.石油与天然气地质,23(4) :368-371． Zhao Hongge and Liu Chiyang.2002． Reserch on the segmentation of Daxing fault.Oil and Gas Geology,23(4) : 368-371．
赵红格,刘池洋.2003． 廊固凹陷的拆离滑脱构造.西北大学学报(自然科学版),33(3) :315-319． Zhao Hongge and Liu Chiyang.2003． Detachment gliding structures of Langgu sag.Journal of Northwest University(Natural Science Edition),33(1) : 315-319．
赵红格,刘池阳,杨明慧,王定一.2000． 调节带和转换带及其在伸展区的分段作用.世界地质,19(2) :105-111． Zhao Hongge,Liu Chiyang,Yang Minghui and Wang Dingyi.2000． Accommodation zones and transfer zones and their roles in the segmentation of the extended terranes.World Geology,19(2) : 105-111．
② 华东石油学院.1987． 京津地区廊固凹陷地质-物探综合解释研究总结报告。
桂宝玲,何登发,闫福旺,张文君.2011． 伸展盆地复杂断块运动学平面复原--以渤海湾盆地廊坊-固安断陷为例.地质科学,46(2) :426-444．Gui Baoling,He Dengfa,Yan Fuwang and Zhang Wenjun.2011． Map-view restoration of kinematics of complex fault-blocks in extensional basin: Insights from the Langfang-Gu'an fault-sag in Bohaiwan Gulf Basin,China.Chinese Journal of Geology,46(2) : 426-444．
金凤鸣,傅恒,李仲东,周文.2006． 冀中坳陷廊固凹陷古近系层序地层与隐蔽油气藏勘探.矿物崭石,26(4) :75-82． Jin Fengming,Fu Heng,Li Zhongdong and Zhou Wen.2006． Sequence stratigraphy of paleogene and exploration of blind reservoirs in the Jizhong depression of Langgu subdepression.Journal of Mineralogy Petrology,26(4) : 75-82．
李德生.1980． 渤海湾含油气盆地的地质构造特征.石油学报,1(1) :12-19． Li Desheng.1980． Geology and structural characteristics of Bohai Bay,China.Acta Petrolei Sinica,1(1) : 12-19．
宋荣彩.2006． 陆相断陷盆地层序地层学与隐蔽油气藏模式研究--以廊固凹陷古近系为例(博士论文).成都:成都理工大学.1-148． Song Rongcai.2006． Sequence Stratigraphy and Subtle Oil-Gas Pool Mode Research in Continental Rift-Subsidence Basin: On the Case of Langgu Depression,Paleogene(PhD Dissertation).Chengdu : Chengdu University of Technology.1-148．
宋荣彩,张哨楠,李弢.2006． 廊固凹陷大兴断层对油气分布的控制研究.天然气工业,26(8) :30-33Song Rongcai,Zhang Shaonan and Li Tao.2006． Research on the hydrocarbon distribution controlled by Daxing fault in Langgu sag.Natural Gas Industry,26(8) : 30-33．
鲜强,李仲东,傅恒,宋荣彩,郑敬贵.2007． 廊固凹陷下第三系层序地层及构造演化.物探化探计算技术,29(3) :244-248． Xian Qiang,Li Zhongdong,Fu Heng,Song Rongcai and Zheng Jinggui.2007． Sequence stratigraphy and structural sequence evolvemenl of Langgu depression in Lower Tertiary.Computing Techniques for Geophysical and Geochemical Exploration,29(3) : 244-248．
赵红格,刘池洋.2002． 大兴断裂分段性研究.石油与天然气地质,23(4) :368-371． Zhao Hongge and Liu Chiyang.2002． Reserch on the segmentation of Daxing fault.Oil and Gas Geology,23(4) : 368-371．
赵红格,刘池洋.2003． 廊固凹陷的拆离滑脱构造.西北大学学报(自然科学版),33(3) :315-319． Zhao Hongge and Liu Chiyang.2003． Detachment gliding structures of Langgu sag.Journal of Northwest University(Natural Science Edition),33(1) : 315-319．
赵红格,刘池阳,杨明慧,王定一.2000． 调节带和转换带及其在伸展区的分段作用.世界地质,19(2) :105-111． Zhao Hongge,Liu Chiyang,Yang Minghui and Wang Dingyi.2000． Accommodation zones and transfer zones and their roles in the segmentation of the extended terranes.World Geology,19(2) : 105-111．
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