Method for carrying out stratigraphic comparison by utilizing similarity algorithm

The invention discloses a method for carrying out stratigraphic contrast by utilizing a similarity algorithm, which comprises the following steps of: acquiring logging curves of six logging methods, namely corresponding horizon micropotential, high-resolution lateral logging, microsphere logging, density logging, high-resolution sound wave logging and natural gamma logging methods of a reference well and a target well; a Pearson correlation coefficient, a time domain gradient, a dynamic time curvature or a dynamic time probability density similarity algorithm is adopted to calculate a similarity parameter within a certain sliding window length of the whole well section of the target well; determining a comparison horizon depth according to the horizon parameter of the reference well and the similarity parameter of the target well; the problem that due to automatic comparison of an existing computer, when logging information changes, the horizon comparison error is large is solved. 本申请公开了一种利用相似度算法进行地层对比的方法，包括获