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最近发展起来的计算机程序计算,能够确定假定的半呎厚矿层的 U_3O_8含量。所谓假定层,是指一个能用伽玛测井异常显示的铀矿带。这些半呎假定层的含量的一级近似值与经过仪器死时间校正的伽玛测井曲线的变化成正比。然后将假定的半呎矿层的含量用重复的加工过程进行修正,直至由假定层计算而得来的合成异常与实际测井异常相符。当两者很相符时,属于假定层的 U_3O_8含量便可作为正确值采用。计算机方法优于常规的人工计算方法,共优点是速度快、费用低和结果更适用。
Recently developed computational computer programs have been able to determine the U_3O_8 content of a hypothetical half-foot-thick seam. The so-called hypothetical layer refers to a uranium belt that can be displayed anomalously with gamma logging. The first order approximation of the content of these half-foot hypothetical layers is proportional to the change in gamma log curves corrected for instrument dead time. The hypothetical half-foot seam content is then corrected by repeated machining until the synthetic anomaly calculated from the hypothetical layer is consistent with the actual well logging anomaly. When the two are in good agreement, the U_3O_8 content belonging to the hypothetical layer can be used as the correct value. Computer method is superior to the conventional manual calculation method, the advantages are fast, low cost and the results more applicable.