• journal_title：Geophysics
• Contributor：Hong Liang ; Yi Luo ; Panos G. Kelamis ; Arthur B. Weglein
• Publisher：Society of Exploration Geophysicists
• Date：2012-11-01
• Format：text/html
• Language：en
• Identifier：10.1190/geo2012-0162.1
• journal_abbrev：Geophysics
• issn：0016-8033
• volume：77
• issue：6
• firstpage：T239
• section：Seismic Modeling and Wave Propagation

When interpreting seismic images or suppressing multiples in seismic data, it is important to identify the reflectors from which the multiples, especially the internal multiples, originated. We evaluated a method to relate all seismic arrivals, including primaries and multiples, to their originating reflectors. We used the reflectivity forward modeling method to isolate reflectors and determine the contribution of an individual reflector to arrivals in a seismic trace. Repeating this process for all reflectors produced a reflector spectrum, which shows quantitatively the relative contribution of each reflector to all arrivals in a trace. Then we modified the reflector spectrum to relate seismic arrivals only to their shallowest reflectors. We applied the reflector spectrum and the modified reflector spectrum to a velocity model constructed from a field sonic log. We provided an indication of the minimum number of reflectors responsible for multiples and demonstrated that internal multiples originate from many reflectors distributed throughout the model, rather than from a few major ones.