水平电偶极变频测深的低频特性和对高阻层的穿透问题

THE LOW-FREQUENCY CHARACTERISTICS AND THE PROBLEM OF PENETRATION OF HIGH RESISTANCE SHIELDING LAYER FOR HORIZONTAL ELECTRIC DIPOLE PARAMETRIC DEPTH SOUNDING

本文对水平电偶极变频测深中高阻屏蔽层的穿透和视电阻率的低频特性进行了理论上的研究,给出了有关的近似公式以及应用这些公式的条件。为了验证这些近似公式的正确性以及了解它们误差的大小,并通过一些实例将它们与电子计算机算出的准确结果进行了比较。

The low-frequency characteristics and the problem of penetration of high resistance shielding layer for horizontal electric dipole parametric depth sounding are investigated theoretically in some detail. The relevant approximate formulas are derived, with the requirements for their application specified. In order to check the correctness of these approximate formulas as well as to get some idea about the magnitude of errors, we compare them for some examples with the exact results calculated through an electronic computer.