摘要
砾岩油藏注水开发效果明显差于砂岩油藏。储层严重的层间、层内、平面、微观非均质是影响注水开发效果的主要因素:平面上油水运动规律受沉积相带的控制;剖面上水洗状况极不均匀;大量的高渗透结构与构造导致不少油井水窜、水淹;严重的微观非均质和储层敏感性又使得储层的驱油机理变复杂,驱油效率降低。
The development of a conglomeratic oil reservoir by water flooding is obvious inferior to that of a sandstone reservoir. Severe interlayer, intralayer, lateral and micro-heterogeneities are main factors affecting the development of a reservoir by water flooding. The planar oil and water movement is governed by sedimentary phases belt; water flushing in a profile is severly nonhomogeneous; water breakthrough and by passing occur in numerous wells due to the presence of high permeability layers; severe mieroheterogeneity and sensitivity of the reservoir makes the mechanism of water-oil displacement to be complex, resulting in a lowering of the displacement efficiency.
出处
《石油勘探与开发》
SCIE
EI
CAS
CSCD
北大核心
1993年第6期54-60,共7页
Petroleum Exploration and Development
