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套管井中电测井是强电流研究的一个主题。文中,作者研究了套管井中电测井物理响应的常规理论,套管处地层电阻率是垂向可变的,而且套管的电导率也有变化。研究该理论时,采用了一个四极探头。其中,一个为电流电极,另三个为测量流入地层接收点电极。文中所有的理论都是从近似传输理论出发导出的。文中先导出了排列系数表达式。此后,建立了排
Cased hole electrical logging is a subject of intense current research. In this paper, the author has studied the general theory of the physical response of electrical logging in cased wells. The formation resistivity of the casing is vertically variable and the conductivity of the casing varies. In studying this theory, a quadrupole probe was used. One of them is a current electrode, and the other three are spot electrodes for measuring inflow formation reception. All the theories in this paper are derived from the theory of approximate transmission. The article first derived the arrangement coefficient expression. Since then, the establishment of the row