东濮凹陷油、气聚集模式

本文根据东濮凹陷地震、钻井勘探资料,从以下四个方面阐述了聚集油、气模式及其有关问题。1.东濮凹陷具有南北分块,东西分带的地质构造特点及油、气的成带分布规律。2.对在东濮凹陷内所发现的构造圈闭模式和隐蔽圈闭模式,从它们的成因、形态特点,生、储、盖、遮条件以及与聚集油、气的关系进行了分析。3.凹陷里的断层活动主要有三期;北北东至北东向断层控制油、气的聚集;早期活动强,晚期活动减弱的断层有利于聚集油、气。4.根据东濮凹陷内储集层和盖层的各种配置关系,将凹陷内的储盖组合形式划分为五类。结合实例阐述了各种储盖组合与不同类型断块的配置对断块的圈闭性及对断块聚集油、气的重要作用。

PATTERN OF OIL AND GAS ACCUMULATION IN THE DONG-PU DEPRESSION

Based on data of seismic and drilling work done in the Dongming-Puyang depression, the subject is dealt with in the following respects: 1. geological characteristics and zonal distribution of oil and gas pools in the Dong-Pu depression; 2. analysis of the structural and subtle pattern of traps discovered in the depression in the light of their origin, morphological features and the source-reservoir-capping conditions, as well as their relationship with hydrocarbon accumulation; 3. the role of faulting in the control of oil and gas accumulation; and 4. types of reservoir and cap rock combination and disposition of fault blocks, and their significance to the entrapment and accumulation of hydroearhons.