A New Approach To Velocity Filtering

There are two very important considerations when deciding on or evaluating<br>velocity filtering (also known as dip filtering) of reflection seismic shot records:<br>1. Are relative amplitude strengths preserved ?<br>2. Is there sufficient discrimination on the basis of slope<br>between primary reflections and coherent noise ?<br>The first issue is very important when any AVO (amplitude variation with<br>offset) processing is done, and the second issue determines how effective<br>the filtering process will be.