李梁,孙庭斌,陈迎楠,张怡,王玉珊,王硕,赵婧,王雅迪,李栋

• 1:中国石油集团东方地球物理勘探有限责任公司研究院地质研究中心
• 2:中国石油集团东方地球物理勘探有限责任公司装备服务处

摘要(Abstract)：

断裂在塔里木盆地奥陶系碳酸盐缝洞型油气藏勘探开发中具有重要作用，包括控储、控藏和控富，是油气地质分析的热点。由于肖塘南地区二维测线对断裂的解释及识别难度大，对断裂控储控藏的认识不清，制约了该区奥陶系油气勘探。为此，基于肖塘南地区新三维地震资料，在分析区域地质概况的基础上，系统分析了走滑断裂的构造、演化特征，明确了走滑断裂对油气藏的控制作用，进而提出了目标优选思路。研究表明，平面上肖塘南地区发育3条NE向走滑断裂带，具有线状、马尾状、半花状组合样式；纵向上发育深层、浅层2套断裂系统，深层走滑断裂形成于加里东早—中期，表现为陡直或花状样式，浅层断裂形成于加里东晚期—海西期，表现为负花状构造走滑断裂。研究区内顺南4断裂带具有明显的分区特征，由南向北表现为线性断裂区——马尾状断裂区。在马尾状断裂区内，地层破碎严重，有利于岩溶作用，断溶体油气藏更为发育，是风险勘探优先选择的区域。研究认识对该区奥陶系断溶体油气藏勘探具有一定的指导意义。

关键词(KeyWords)： 走滑断裂;断溶体;油气藏;塔里木盆地

Abstract:

Keywords:

基金项目(Foundation): 中国石油天然气集团有限公司项目“大功率时频电磁勘探系统现场试验”(2022ZS01)

作者(Author): 李梁,孙庭斌,陈迎楠,张怡,王玉珊,王硕,赵婧,王雅迪,李栋

DOI: 10.19509/j.cnki.dzkq.2022.0148

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