目前所用的大多数测井曲线分层算法都依赖于层内地层特性均匀分布的层饼状模型的假定。本文考虑将最通用的一类分段多项式函数用于测井曲线的模型,并提供了一个相应的分段准则。而且,为便于分段过程的实现,描述了用于确定层边界的可视化手段。通过将分段线性模型广泛用于各种尺度范围的实际资料对这种概念作了说明。 Most logging curve stratification algorithms used today rely on the assumption of a layer cake model with even distribution of formation properties. In this paper, the most common type of piecewise polynomial function is considered for the log curve model and a corresponding segment criterion is provided. Moreover, to facilitate the implementation of the segmentation process, a visualization approach for determining the boundary of a layer is described. This concept is illustrated by the fact that piecewise linear models are used extensively in a wide range of scales.