Abstract: In order to recognize time－sequence curves,along with the x－axis direction and by means of averagely dividing 0°～180° into small intervals,standard codes are adopted to express the general tendence of the curves in general.On the basis of standard codes,corresponding revisal codes are also adopted to express the deviation from standard codes.In fact,both codes describe the shapes of curves exactly.A similarity function is defined to compute the similarity between a curve and another one,which in most cases are not of the same length.The method described above is proved effective in the recognition of sediment microfacies by well－logging curves from the Luliang Area of Xinjiang Kelamayi Oil Field．

摘要： 为了进行时序曲线识别,沿着x轴方向,通过均等细分180°,对曲线进行标准编码,以反映曲线的总体变化趋势。在此基础上,进一步确定曲线的修正编码,以表示曲线与标准编码的差异程度。通过两级编码,准确表示了曲线的变化趋势。最后分别定义标准编码和修正编码的近似度函数,实现两条曲线不等长编码的近似度计算。对新疆克拉玛依陆梁地区的测井曲线进行两级编码和近似度计算实现了沉积微相的自动识别,取得很好的识别效果。