Method for estimating shear wave reflection data from acquired compressional wave reflection data

摘要

An improved method is disclosed for obtaining shear wave data from common depth point gathered compressional wave traces using variations in the amplitude of the gathered compressional waves with source receiver offset. The shear wave data is determined from measured compressional amplitude offset values and incident angles of shear wave data. The incident angles are determined from the offsets and smoothed interval velocity functions.