中子源与地层相互作用理论及实例

The theory and an example of the interaction between a neutron source and formation

文章介绍了中子源与地层相互作用的原理,分析了中子源产生的快中子以及快中子减速后的热中子与地层发生相互作用产生伽马射线的原因。另外,通过对一次打捞放射性仪器过程中测到的异常高伽马的实例,说明了中子源长时间作用于地层对测井的实际影响。

This paper introduces the principle of the interaction between the neutron source and the formation.It analyses the reasons for the gamma rays produced during the fast neutrons and the thermal neutrons interact with the formation.In addition,through an unusually high gamma example from a process of salvage radiation instrument,it shows the influence of a neutron source on the formation during logging.