| 港西北坡西南缘沙三段油气藏勘探研究 |
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| 引用本文： | 李洪香,付东立,李会慎,王兆礼,吕卫东.港西北坡西南缘沙三段油气藏勘探研究[J].新疆地质,2009,27(4). |
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| 作者姓名： | 李洪香 付东立 李会慎 王兆礼 吕卫东 |
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| 作者单位： | 1. 中国石油大港油田勘探开发研究院,天津,300280
2. 中国石油渤海钻探工程公司,天津,300280 |
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| 摘 要： | 港西北坡位于大港探区北大港潜山构造带东北翼,沙三段沉积前与其沉积时期,受断裂活动迁移性控制,发生多次构造掀斜与构造反转,沙三段遭受多期剥蚀,在其顶、底及内部存在不整合界面.不整合面对油气运移和富集有重要作用,其附近存在地层削截与地层超覆现象,在港西岛物源控制下形成地层圈闭.在港西北坡西南缘沙三段寻找地层不整合油气藏,以构造背景为基础,开展层序地层学研究,追踪有利砂体分布范围,建立油气成藏模式.
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| 关 键 词： | 港西北坡 地层不整合 沙三段 勘探实践 |
EXPLORATION AND PRACTICE OF THE THIRD MEMBER IN SHAHEJIE FORMATION OF SOUTHWESTERN MARGIN IN NORTH SLOP OF GANGXI |
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| LI Hong-xiang,FU Dong-li,LI Hui-shen,WANG Zhao-li,LU Wei-dong.EXPLORATION AND PRACTICE OF THE THIRD MEMBER IN SHAHEJIE FORMATION OF SOUTHWESTERN MARGIN IN NORTH SLOP OF GANGXI[J].Xinjiang Geology,2009,27(4). |
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| Authors: | LI Hong-xiang FU Dong-li LI Hui-shen WANG Zhao-li LU Wei-dong |
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| Abstract: | The north slop of Gangxi is located in the northeastern tectonic belt of the Beidagang buried hill．Before and in the sedimentary period Of Es3 member,as it was controlled by the migration of faulted activity,there were multiple tectonic tilting and tectonic inversions，so Es3 member was denuded，and there were unconformable records on the top，bottom and internal of Es3 member．Unconformable surfaces had an important impact on the migration and concentration of hydrocarbon，formation truncation and overlapping occurred around unconformable surfaces．For the goal of finding unconformity reservoir of Es3 member in southwestern margin of north slop of Gangxi．By classifying and comparing sequence，tracing the distribution range of favor sand，the pattern of hydrocarbon accumulation was established，and finally a breakthrough in the exploration of unconformity hydrocarbon reservoir in Es3 member had been made. |
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| Keywords: | The north slop of Gangxi Unconformity reservoir Es3 of Shahejie group exploration practice |
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