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机构地区:[1]中国石化中原油田分公司勘探开发科学研究院,河南濮阳457001
出 处:《断块油气田》2012年第2期177-181,共5页Fault-Block Oil & Gas Field
摘 要:濮卫洼陷既是油气富集的负向构造,也是生烃洼陷,发育多种类型油气藏。为打开盐间、盐下深层系的勘探局面,重点分析了构造-岩性油气藏形成的特殊地质条件,以砂体展布规律研究为切入点,精细刻画目标层系沉积微相及局部断裂结构,建立砂体与古地形的对应模式,分析砂体疏导途径,优选储集相带与构造有利匹配区域钻探,效果明显。通过濮卫洼陷构造-岩性油气藏的不断研究与实践,形成的勘探思路、方法对下洼油气探索具有指导作用。Puwei Sag is a negative structure of abundant oil-gas accumulation, but also a hydrocarbon-generating sag, in which various types of oil-gas reservoirs developed. For the purpose of approaching the new exploration intervals of inter-sah and pre-salt, this paper analyzes the special geological conditions of structural-lithologic pool formation. Based on the study of distribution rules of sand body, sedimentary mierofacies and regional faulting structures are precisely outlined in targeted strata series, associative mode of sandbody and palaeotopography is established, transfer route of sandbody is analyzed, optimization of reservoir zone where the reserves match with benefit structures for drilling is conducted, which has obtained a obvious effect. Unceasing research and practice on structural-lithologic oil-gas pool had achieved an available method which is of a guidance to the exploration of the lower part of Puwei Sag.
关 键 词:构造-岩性油气藏 盐岩 沉积微相 砂体展布 濮卫洼陷
分 类 号:TE122.3[石油与天然气工程—油气勘探]
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