A METHOD OF PROCESSING VERTICAL SEISMIC PROFILE DATA USING EFFECTIVE VTI MODELS

摘要

A method of applying an effective velocity model to vertical seismic profile(VSP) seismic data comprises correcting for offset using a non-hyperboliceffective velocity model so as to take account of the earth's layering andanisotropy. One preferred non-hyperbolic model for the relationship betweenoffset and travel time is: formula (I) where t is the travel time of seismicenergy from the source to the receiver, x is the offset between the source andthe receiver, and z is the depth of the receiver.