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尹军强，朱龙德，等．通过金属套管测量地层电阻率的可行性研究．测井技术，１９９８，２２（５）：３７６～３７９探讨了金属套管井中电阻率测量的可行性。在理论上探讨套管井电阻率的测量方法及测量原理，并详细地推导测量电阻率的计算公式。在实验上，主要研究怎样在强干扰信号下测出微弱的有用信号，设计出在白噪声淹没下的实际信号测量电路，包括电压测量电路，电流测量电路，参考信号放大电路等。最后建一模型井，并用设计的电极系及有关测量电路在模型井中进行地层电阻率测量的实验，验证该测量方法的可行性。
Yin Junqiang, Zhu Longde, et al. Feasibility Study on Formation Resistivity Measured by Metal Casing. Logging Technology, 1998,22 (5): 376 ~ 379 discusses the feasibility of resistivity measurement in metal cased hole. In theory, the measurement method and measurement principle of cased hole resistivity are discussed, and the calculation formula of measurement resistivity is deduced in detail. In the experiment, we mainly study how to measure the weak signal under the strong interference signal and design the actual signal measurement circuit, including the voltage measurement circuit, the current measurement circuit and the reference signal amplification circuit under the submergence of white noise. Finally, a model well was built, and the experiment of formation resistivity measurement in the model well with the designed electrode system and the relevant measuring circuit was used to verify the feasibility of the measurement method.