SEISMIC DATA PROCESSING USING MATCHING FILTER BASED COST FUNCTION OPTIMIZATION

摘要

A method for processing seismic data from a subsurface using least squares migration or wave equation migration velocity analysis over a cost function comprising a function of a matching filter by iteratively updating the reflectivity model velocity model to yield an updated reflectivity model or updated velocity model that matches the observed seismic data.

主权项

1. A method for processing seismic data from a subsurface, the method comprising:
obtaining observed seismic data of the subsurface; generating a reflectivity model of the subsurface, the reflectivity model yielding modeled seismic data of the subsurface when forward modeled; and using least squares migration over a cost function comprising a function of a matching filter containing a mapping between the observed seismic data and the modeled seismic data by iteratively updating the reflectivity model to yield an updated reflectivity model that when forward modeled yields updated modeled seismic data that match the observed seismic data.