东濮凹陷坡折带特征与砂体分布  

Characteristics of Slope Break Belt and Distribution of Sands in Dongpu Depression

作　　者：韩保清[1] 曾红兵[1] 张洪安[2] 胡玉杰[3] 

机构地区：[1]中原油田分公司西部勘探经理部,河南濮阳457001 [2]中国地质大学〔北京),北京100083 [3]中原油田分公司勘探开发科学研究院,河南濮阳457001

出　　处：《江汉石油学院学报》2003年第2期25-27,共3页Journal of Jianghan Petroleum Institute

摘　　要：根据东濮凹陷的构造演化和古地理分析,可以概括出3种坡折带模式:构造坡折模式、断层斜坡模式和断层+古隆(梁)模式。由于坡折带制约着盆地充填可容纳空间的变化,是砂岩厚度和层数的增加带,又多位于油气运移的上倾方向,因此是形成岩性油气藏的有利部位。近年来利用坡折带分析、结合地震储层预测技术,在东濮凹陷岩性油气藏勘探中取得了良好效果。Based on the structural evolution in Dongpu Depression and paleogeographic analysis, slope break belt would be described as three types, such as structural slope break mode, fault slope mode and fault+ palaeohigh mode. Changes of containable space of the basin filling are constrained by the slope break belt, which is an increasing belt of sandstone thickness and number of layers and it is often located in upward tilted direction of oil and gas migration, thus it is a beneficial location of forming lithologic reservoirs. Good results have been achieved for recent years in oil and gas exploration of the li-thologic reservoir in Dongpu Depression by using slope break belt analysis with seismic reseroir prediction techniques.

关 键 词：坡折 构造演化 盆地演化 古地理学 砂岩体 分布 岩性油气藏 隐蔽油气藏 东濮凹陷 

分 类 号：P531[天文地球—古生物学与地层学]