neutron-gamma logging 中子伽马测井
natural gamma logging curve 自然伽玛曲线
natural gamma logging 自然伽马测井
gamma ray logging 伽马线测井 ; 射线测井
LWD gamma logging 随钻自然伽马测井
gamma logging tool 伽马测井仪
gamma logging curve 自然伽玛曲线
nature gamma logging 自然伽马测井
gamma logging gr curve 自然伽玛曲线
HB97 bigger crystal nature gamma logging tool is designed for overcoming logging curve repeating errors due to statistical variation.
为了克服自然伽马测井时，由于统计起伏所造成的测量曲线重复性误差而设计制造HB97型测井仪。
Natural gamma logging is a kind of most basic methods of well logging in cased Wells which measure with gamma ray detector along well during logging.
自然伽马测井是套管井测井中一种最基本的方法。它以地层自然放射性为基础，测井时用伽马射线探测器沿井眼进行测量。地层中的自然伽马放射性不是一成不变的。
This article introduces the new logging method which uses Gadolinium-injecting instead of Boron-injecting and uses Neutron-Gamma Logging instead of Neutron Lifetime Logging.
文章介绍了注钆代替注硼，中子伽马代替中子寿命的测井方法，对其优点作了分析，并列举了一些实例。
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