| 铲式反转断层演化序列及其与油气聚集的关系 |
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| 作者单位： | 中国石油大学(北京)资源与信息学院，中油国际海外研究中心，大港油田分公司第一采油厂，华北油田分公司第一采油厂 |
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| 摘 要： | 铲式反转断层系指伸展盆地中控制半地堑系统的主控断裂遭受挤压变形所产生的压缩构造。随着压应力递增,铲式断层系统中的倾向滑动可渐次形成反转-"鱼叉"状构造、上盘交截冲断层、下盘捷径冲断层、"向后破裂"下盘捷径冲断层叠瓦扇、"向后破裂交截"冲断层、向前破裂后冲断层叠瓦扇、后冲断层与下盘捷径冲断层扇形构造和脊部塌陷"上突"构造等。由其形成的各种冲断系统及相关背斜直接叠覆在生油断陷上,生储运配置关系得天独厚,十分有利于油气的聚集与成藏。
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| 关 键 词： | 铲式断层 反转构造 演化序列 油气聚集 |
Listric Reversion Fault Evolution Sequence and Its Relation with Hydrocarbon Accumulation |
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| ZHANG Yi-na. Listric Reversion Fault Evolution Sequence and Its Relation with Hydrocarbon Accumulation[J]. Journal of Oil and Gas Technology, 2008, 0(3) |
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| Authors: | ZHANG Yi-na |
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| Abstract: | Listric reversion fault was defined as compressed structure generated by the master-control fault controlling the half-graben system which suffered from compressional deformation in extensional basin.With the compressional stress increasing,the dip-slip motion in listric fault system could successively generate reverse-"fish-fork-shaped" structure,hanging wall interpenetration thrust,footwall shortcut thrust,"backward broken" footwall shortcut thrust imbricated fan,"backward broken interpenetration" thrust,forward broken back-thrust imbricated fan,back-thrust and footwall shortcut thrust fan-shaped structure,crestal collapse "convex up" structure,et al.Various thrust systems and related anticlines override on oil generating rift,whose configuration of generation,preservation and migration are superior,so they are favorable for hydrocarbon accumulation and reservoir generation. |
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| Keywords: | listric fault reversion structure evolutionary sequence hydrocarbon accumulation |
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