莫西庄构造三工河组储层薄夹层综合研究

Comprehensive research of Sangonghe formation interbeded reservoir in Moxizhuang structure

陆相储层单砂体内的薄夹层是形成储层流体流动非均质的主要因素之一,莫西庄构造三工河组储层为三角洲平原亚相和三角洲前缘亚相沉积,多期分支河道的叠加构成了三工河组砂体的主要微相类型,通过岩心观察和储层物性分析,结合岩石的电性特征,对三工河组储层薄夹层进行了划分,并研究了薄夹层分布频率及分布密度,建立了该区薄夹层模式,对其空间展布进行了研究,为下步地质建摸和开发方案的编写提供了基础。

The sandbody in Sangonghe formarion of Moxizhuang structure is carried and deposited by delta Campagna sub-facies and forward delta sub-facies.The primary microfacies of the sandboby are stacked by embranchment riverway of different period.Through rock core observation and reservoir physical character analysis,combined with the rock's electric property characteristic,the interbeded layer of Sangonghe formation has been carried on the division and the description.The research of distributing frequency and density of the barrier layer or interbed,provides a base for building geological model and drawing up development plan following.