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随钻自然伽马测量仪是钻井行业普遍应用的一种重要的随钻测量 (MWD)仪器。文章介绍了随钻自然伽马测量仪的原理 ,阐述了随钻自然伽马井下测量仪器的设计方法及提高可靠性的措施。实际应用证明 ,该仪器探测范围、测量精度及可靠性已达到国外同类仪器的水平
Gamma ray logging while drilling is an important MWD instrument commonly used in the drilling industry. This paper introduces the principle of natural gamma meter while drilling, and expounds the design method and the measures to improve the reliability of the underground gamma ray meter while drilling. Practical application shows that the detection range of the instrument, measurement accuracy and reliability have reached the level of similar foreign instruments