河流相储层单砂体识别与应用

RECOGNITION OF THE INDIVIDUAL SAND BODY IN FLUVIAL FACIES RESERVOIRS AND ITS APPLICATION

为了寻找和挖掘厚油层河道砂体剩余潜力，针对控制剩余油的主要地质因素开展了河流相储层成因单砂体精细识别方法研究，形成了曲流河点坝砂体、辫状河心滩坝等主要成因单砂体密井网精细刻画技术，加深了河流相储层平面及层内非均质特征的认识程度，搞清了控制剩余油分布的主要因素。河流相储层单砂体精细识别方法在水平井挖潜、措施调整开发实践中起到了较好的应用效果。

In order to search and tap the potentials of the remained oil in the channel sand bodies of thick reser- voirs, in light of the main geological controlling factors of the remained oil, the studies on the fine recognizing method for the individual sand body generated in fluvial facies reservoirs. As a result, the fine characterizing tech- niques of the close well spacings of the individual sand-body principally originated by meandering point bars and braided channel bars are developed, thus the understandings of the areal and intraformational heterogeneites of the fluvial facies reservoirs are deepened and furthermore the main factors controlling the distribution of the remained oil are clarified. The fine recognizing methods for the individual sand body in fluvial facies reservoirs have obtained much better application effects in the practices of tapping the potentials of the horizontal well and adjusting develop- ment measures.