| 济阳坳陷阳信洼陷构造特征及勘探对策 |
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| 引用本文： | 吕修祥,李训海.济阳坳陷阳信洼陷构造特征及勘探对策[J].石油勘探与开发,1994,21(4):1-5. |
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| 作者姓名： | 吕修祥 李训海 |
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| 作者单位： | 中国石油天然气总公司石油勘探开发科学研究院，胜利石油管理局地质科学研究院 |
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| 摘 要： | 阳信洼陷经过早第三纪始新世一新世断陷和晚第三纪坳陷发育阶段，无棣断层和郑店断层对其发展演化起了十分得要的控制作用。洼陷内展构造累计伸展量一般为３－８ｋｍ，滑脱面埋深８－１０ｋｍ，经压实校正和剥蚀恢复的构造发育剖面表明，沉降中心由北向南迁移。指出阳信陷渍气勘探的重点应是沙三段－沙四段的岩性圈闭。
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| 关 键 词： | 圈闭 阳信洼陷 油气勘探 地质构造 |
STRUCTURAL CHARACTERISTICS AND EXPLORATION TACTICS OFYANGXIN SAG IN JIYANG DEPRESSION |
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| Lu Xiu-xiang.STRUCTURAL CHARACTERISTICS AND EXPLORATION TACTICS OFYANGXIN SAG IN JIYANG DEPRESSION[J].Petroleum Exploration and Development,1994,21(4):1-5. |
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| Authors: | Lu Xiu-xiang |
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| Abstract: | Yangxin sag, a small asymmetrical sag in Jiyang depression, is formed by precess of riftingstage in Eocene-Oligocene and subsiding stage in Neogene.Wudi fault and Zhengdian faultplay an important part in controlling the development and evolution of the sag. Extensionalstructures in the sag are quantitatively analyzed,and the total extension range from 3 to 8kilometers, detachment depth from 8 to 10 kilometers.Structural sections which are dealtwith compaction correction and restoration of stripped strata show that depocenter of the sagremoved from north to south.It is suggested that the breakpoint of petroleum exploration inYangxin sag should be lithologic traps in the third and fourth members of Shahejie formationrather than structural traps when petroleum geological conditions are analyzed. |
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| Keywords: | stratigraphic trap alluvial fan balanced section stretch structure gutterpositive fault (Yangxin sag) |
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