MODEL-BASED TIME-PRESERVING TOMOGRAPHY

摘要

A system and method for modeling seismic data using time preserving tomog raphy including storing an initial set of parameter values representing an i nitial seismic data model. The initial seismic model may correspond to at le ast two or more ray pairs. Each ray pair may have a traveltime. An altered m odel may be generated by altering two or more parameter values in the initia l set of parameter values for each of two or more ray pairs in the initial m odel. Altering one parameter value without altering the remaining of the two or more parameter values may correspond to a change in the traveltime of ea ch of the ray pairs, while altering the two or more parameter values in comb ination typically corresponds to no net change in the traveltime of each of the ray pairs.