宽能域中子伽马能谱测井技术

对于注水开发的油田,随着时间推移,开采层的含油气饱和度逐渐降低,地层水淹程度逐渐加大,地层物性不断变化,俄罗斯宽能域中子伽马能谱测井技术是一项新的套后剩余油监测评价技术,它在一定程度上克服和弥补了常规中子寿命和碳/氧比测井方法的不足和缺点,能计算套后地层密度,能谱识别范围宽,求取的地层元素较多,目前该项技术已被华北测井分公司成功引进,并在相应区块得到初步应用。从应用效果来看,该项技术在确定储层骨架、黏土矿物成分和剩余油气饱和度等方面效果突出。

The Wide-range Spectrometric Neutron Gamma Ray Logging Technology

To water flooding oilfield. as time goes on. the saturation of the oil and gas reserves reduces gradually. the water increases. and the ground physical properties have changed. Wide - range spectrometric/Chlorine spectrometric neutron gamma ray logging technology is a new method used for residual oil monitoring. To some extent. it overcomes and makes up the shortcomings and defects of the conventional neutron logging and carboni oxygen logging. which can calculate the formation density （not pulling the pipe）. identify wide- range spectrum and calculate more elements. At present. this technology has been introduced by north China branch of Sinopec , and was applied in our corresponding block. Seen from the applied effects. this technology has its unique advantages in determining reservoir skeleton. clay mineral composition. and the remaining oil or gas saturation.