摘要
河流相储层由于非均质性严重,常规开采仍存在较大比例的剩余油。本文研究了河流相储层中剩余油的6种主要类型:水洗区分散相剩余油、河道砂上部低渗透弱水洗剩余油层、溢岸或边缘相薄层低渗剩余油、工程污染所致剩余油层、井间微圈闭剩余油和已开发断块外延断棱区剩余油。总结了剩余油分布的层内、层间和平面富集的规律性。重点论述了剩余油研究方法之开发地质方法,分别阐述了储层相控建模、岩石物理相、流动单元、神经网络和微构造5种方法。
More remaining oil still exist in the reservoir recovered by the traditional development technique as the anisotropy of the fluvial facies reservoir is a very serious problem. Six main types of the remaining oil of the fluvi- al facies reservoir are studied, they are the disperse facies remaining oil in flooded area, the remaining oil in the low permeable, poor flooded upper of channel sand, the remaining oil in the border facies with low permeable, thin layer, the remaining oil that caused by engineering contamination, the remaining oil in cross-well microtrap and the remaining oil in the broken edge area extended from developed block. The laws for the remaining oil that distribut- ed in inner layer, intrabed and plane are generalized. The development geology of the methods to study remaining oil is mainly discussed, the reservoir facies control model building, rock physics facies, and flowing apartment, neu- ral network and microtectonics are elaborated respectively.
出处
《油气地球物理》
2013年第4期57-60,共4页
Petroleum Geophysics
关键词
高含水期
河流相储层
非均质性
剩余油
high water cut stage, fluvial facies reservoir, heterogeneity and remaining oil
作者简介
乔辉，女，地质工程专业在读硕士研究生，研究方向为开发地质。
