摘要
本文概述了离子浓度淡化倍数法判别水淹层的使用方法、取样要求和分析技术以及离子淡化理论依据，研究建立了氯离子稀释图版的方法，探讨了岩心水中氯离子浓度与淡化倍数的关系。通过３口密闭取心井９３７块岩心水中氯离子含量分析与研究认为，强水洗氯离子淡化倍数大于８．０，水洗氯离子淡化倍数为０．５５～０．８，未水洗氯离子淡化倍数小于０．５５。
This paper outlines and applicable techniques for judging the degree of watered-out of a reservoir layer using the ion concentration desalination method, as well as the theoretical basis of this technique. A set of chart for chloride ion dilution is established to study the relation between chloride ion concentrations and degree of desalination in core samples. By chloride ion content analysis and studies of water sample in 937 cores from 3 sealed cored wells located in Daqing Placanticline, this paper concludes that for intensely flushed cores chloride ion is reduced by a factor of 8. 0 or more, for a flushed core chloride ion is reduced by a factor between 0. 55 and 8. 0 and for an unflushed core chloride ion is reduced by a factor less than 0. 55.
出处
《石油勘探与开发》
EI
CAS
CSCD
北大核心
1995年第4期62-65,共4页
Petroleum Exploration and Development
关键词
水淹
油田注水
储集层
级别判断
Chlorine
Ion
Desalination
Theory
Decision
Watered out
