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LDLT5450岩性密度测井仪是一种双源距、双能谱,利用光电效应和康普顿效应区分地层岩性和测量地层密度的测井仪。由于测井环境比较恶劣以及仪器测量原理的限制,造成测井曲线异常是多方面的。本文就电子线路与探头连线的绝缘、仪器的刻度、测井环境等方面造成的测井异常进行分析,以及怎样克服这些问题提出建议,以期对仪器正确使用提供帮助。
LDLT5450 lithology density logging tool is a dual-source distance, dual-energy spectrum, the use of photoelectric effect and the Compton effect distinguish formation lithology and measurement of formation density tool. Logging anomaly is multifaceted due to the harsh logging environment and the limitations of instrumentation. This paper analyzes the logging anomalies caused by the insulation of electronic circuits and probes, the scale of instruments and the logging environment, as well as suggestions on how to overcome these problems in order to help the correct use of the instrument.