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着重论述如何用首枝重合法校正静态效应。提出用等权正交多项式拟合视电阻率曲线真实位置；指出了选择参考频率的原则；以及如何自动识别是否有静态效应的影响，产生了何种形式的静位移。分析静校正处理后的资料可知，静态效应影响几乎无所不在，但在盆地沉积中心有可能无静位移情形；静位移的形式是多样的，但主体形式是ρ＿（ＴＥ）曲线向上，ρ＿（ＴＭ）曲线向下位移，且ρ＿（ＴＥ）曲线在ρ＿（ＴＭ）曲线之上；ρ＿（ＴＥ）曲线与ρ＿（ＴＭ）曲线基本上一样容易产生静位移。
Focus on how to use the first branch coincidence law to correct the static effect. The orthonormal polynomial is used to fit the true position of apparent resistivity curve. The principle of choosing reference frequency is pointed out. And how to automatically recognize whether there is static effect or not, what kind of static displacement is generated. Analysis of the data after static correction shows that there is almost no effect of static effect, but there may be no static displacement in the sedimentary center of the basin. The forms of static displacement are diverse, but the main forms are ρ TE curve up, ρ TM, The curve is shifted downward and the ρ_ (TE) curve is above the ρ_ (TM) curve. The ρ_ (TE) curve is almost as prone to static displacement as the ρ_ (TM) curve.