METHOD AND DEVICE FOR ESTIMATING QUALITY FACTOR BASED ON ZERO OFFSET VERTICAL SEISMIC PROFILING DATA

摘要

A method and device for estimating a quality factor based on zero offset vertical seismic profiling data, the method comprising the following steps: determining a transmission coefficient between two adjacent vertical seismic profiling (VSP) paths based on an interval velocity of a seismic wave in the zero offset VSP data (101); determining the transmission coefficient as an indeterminate coefficient in an objective function of an exponential method, and estimating the quality factor according to the objective function of the exponential method (102). The method and device solves the technical problem in prior art of low stability and accuracy in estimating a quality factor due to the presence of an indeterminate coefficient in the process of estimating the quality factor using the exponential method, thus improving the stability and accuracy in estimating the quality factor.