瞬时速度的一种算法—逐层拟合法

APPROACH TO THE CALCULATION Of INSTANTANEOUS VELOCITIES-An Introduction to the Fitter Stripper

南海石油勘探指挥部

逐层拟合速度模型所用函数是假设在每一速度层内的瞬时速度是时间的线性函数,而不是深度的指数函数。这种关系与随深度呈指数变化的函数关系极为相似,但计算起来却要简单方便得多。本文着重介绍这种模型程序的原理、模型的建立和求解及其效果和应用。

The compilation of velocity models by fitter stripper is based on the assumptions that the instantaneous velocities of each layer are considered as linear functions of time, not the exponential functions of depth. Though the instantaneous velocity is in essence similar to the function varying with the depth exponentially, it is rather simple and more convenient for calculating.In this paper, the author has put his stress on the principle of the modelling programs and also the establishment, the solution, the effect as well as the application of the model.