摘要
在低矿化度地区,通过将俘获截面较高的钆溶液替换井筒内液体,利用"测—渗—测"中子伽马测井施工工艺,在不扰乱地层剩余油分布状态的前提下,改变地层水矿化度能达到评价剩余油纵向分布及水淹层位监测的目的。通过介绍注钆中子伽马测井技术,阐述了示踪剂钆在中子伽马饱和度测井中的作用,利用该方法处理的资料取得了良好的应用效果。
In the low salinity area, by substituting wellbore liquid with Gd solution of high capture cross section, and using ＇log- penetration-log＇ neutron-gamma logging technology, changing the salinity of formation water can achieve the purpose of evaluat- ing residual oil longitudinal distribution and monitoring water flooded layer without disturbing residual oil distribution of formation. Through the introduction of Gd injected neutron gamma logging technology, the effect of the tracer Gd on neutron gamma saturation log was elaborated. The data treated by this method obtained great application effect.
出处
《油气藏评价与开发》
2013年第3期43-45,61,共4页
Petroleum Reservoir Evaluation and Development
关键词
低矿化度
示踪剂钆
测-渗-测
剩余油饱和度
资料解释
low salinity, tracer Gd, log-penetration-log, residual oil saturation, data interpretation
