利用中子寿命测井进行剩余油饱和度评价  

Evaluation of remaining oil saturation by use of neutron-lifetime logging

作　　者：戴长林[1] 

机构地区：[1]中国地质大学,湖北武汉430074

出　　处：《江汉石油职工大学学报》2005年第2期22-23,26,共3页Journal of Jianghan Petroleum University of Staff and Workers

摘　　要：　在油田高含水开发阶段,确定油层水淹程度,找出高剩余油层段是保持油田稳产和提高采收率的关键。中子寿命测井在高矿化度地层中寻找高剩余油、监测油水界面和剩余油饱和度变化,以及鉴别低阻油层等方面有较好的效果,但作为定量评价标准其准确度受到泥质含量、岩石骨架的俘获截面值、孔隙度的不确定性等因素的影响,还需要进一步试验研究。During the development phase of oil field with high water-cut,the key to keep steady oil production and enhance oil recovery efficiency is to determine oil zones by waterflooded degree and to find out the zones with high remaining oil. Neutron-lifetime log can gain good effect for finding out high remaining oil in high salinity layers,monitoring oil-water interface and the remaining oil saturation change,and identifying the low resistance reservoir. But as quantitative evaluation criterion,its accuracy is influenced by the uncertainty factors such as shale content,rock matrin capture cross section value and porosity,and its further experimental study is still needed.

关 键 词：剩余油饱和度 油田 油层 中子寿命测井 高含水 水淹程度 高矿化度 泥质含量 岩石骨架 孔隙度 

分 类 号：TE357[石油与天然气工程—油气田开发工程] P631[天文地球—地质矿产勘探]