This paper deals with the mechanism of bypass channel and mainly discusses the theory, technics and interpretation method of using neutron Lifetime Log(NLL)to evaluate channeling.
文中分析了管外窜槽的形成机理，重点介绍了注硼中子寿命测井技术用于管外窜槽监测的原理、工艺及解释方法。
This log has been replaced by the neutron -lifetime and neutron-decay-time logs.
氯测井已经被中子寿命测井和热衰减时间测井所代替。
This log has been replaced by the neutron -lifetime and neutron-decay-time logs.
氯测井已经被中子寿命测井和热衰减时间测井所代替。
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