商三区沙二下储层敏感性研究  

Reservoir Sensitivity in the Lower Members of Es_2 in Shang 3 Region

作　　者：陈永红[1,2] 

机构地区：[1]中国科学院广州地球化学研究所 [2]胜利油田有限公司临盘采油厂,山东临邑251507

出　　处：《江汉石油学院学报》2004年第1期74-75,共2页Journal of Jianghan Petroleum Institute

基　　金：中国石油化工集团公司科技攻关项目 (P0 10 3 2 )

摘　　要：对商河油田商三区沙二下储层敏感性分析表明 ,速敏指数为 0 2左右 ,属弱敏感 ;平均水敏和盐敏指数为 0 1～ 0 2 ,储层对矿化度的敏感性较弱 ;当注入水的pH小于 8时 ,碱敏较弱 ;酸敏为弱至中等。这 5种敏感性对研究区沙二下储层的伤害均不严重 。Analysis of reservoir sensitivity in the lower members of Shang 3 Region in Shanghe Oilfield shows that velocity sensitive index about 0.2 is weak sensitivity, average water and salt sensitive index is 0.1～0.2, which shows that the reservoir is weakly sensitive to salinity. When pH is less than 8 in injected water, alkaline sensitivity is weaker, acid sensitivity is weak to medium. Reservoir damage caused by these 5 kinds of sensitivities in the lower member of Es 2 reservoir in the studied area is not severe, thus the difficulties of water injection and fluid production in water flooding are not caused by reservoir sensitivity.

关 键 词：储集层 敏感性分析 沙河街组 商河油田 

分 类 号：TE258.3[石油与天然气工程—油气井工程]