浅析低渗透油藏储层水锁评价方法  

Evaluation method of low permeable reservoir water blocking

作　　者：韩力挥[1] 刘利[1] 毕凯[2] 郭亮[2] 刘燕[1] 李荫刚[1] 

机构地区：[1]中国海洋大学化学化工学院,山东青岛266100 [2]中国石油长庆油田分公司第一采油厂

出　　处：《石油地质与工程》2011年第3期106-107,9,共3页Petroleum Geology and Engineering

摘　　要：在分析水锁损害室内实验的基础上,提出了一种室内定性研究含水饱和度对水锁影响的方法,即将岩心置于岩心夹持器中,直接在出口端面施加压力,使相应地反注液注入岩心造成水锁损害。通过此种方法分析致密砂岩储层的水锁效应,结果与APT_i模型的计算结果相符合。On the basis of analyzing lab experimental methods of water blocking damage,a simple and effective lab method of qualitatively studying effect of water saturation on water blocking damage is presented in this paper,which is called reversed action method.The process is to put cores to core holder and exert pressure on exit end surface so as to result in water blocking damage by the corresponding reversed liquid into the cores.This is used to further develop experimental methods of water blocking,and supplies theoretical direction for lightening or eliminating water blocking damage in the low- permeability sandstone reservoirs.

关 键 词：低渗透砂岩储层 水锁损害 压力 含水饱和度 

分 类 号：TE[石油与天然气工程]