理论和实验表明,根据γ测井曲线计算的铀矿层(或其他放射性矿层)品位-厚度乘积,与矿层和钻孔法线夹角的余弦成反比变化。本文论述在倾斜铀矿层的模型钻孔中进行的实验研究,它把γ测井的反褶积理论扩大应用于倾斜矿层。实验所得出的数据与简单的数字模型有很好的符合性,这种数字模型考虑了下述参数:钻孔直径、探测器长度和放射性矿层厚度以及倾角。 Theoretical and experimental results show that the grade-thickness product of uranium ore (or other radioactive ore layer) calculated from the γ logging curve varies inversely with the cosine of the included angle of the normal and the borehole. This paper deals with experimental studies in model boreholes in tilted uranium deposits that extend the deconvolution theory of gamma logging to bevelled. The experimental data are in good agreement with simple numerical models that take into account the following parameters: borehole diameter, detector length and radioactive ore thickness, and dip angle.