Abstract：The multiple is the most troubling issue af-fecting the marine seismic data processing effects.The multiple-suppressed approaches mainly can bedivided into two categories:the filtering approachbased on the difference between multiple and pri-mary attributes and multiple-predicted minus ap-proach based on wave equation (such as surface-re-lated multiple elimination-SRME). The filteringapproach is primary selection in the production be-cause of practicality, but limited in used precondi-tion that often has some limitation. The multiple-suppressed effects are poorer when the used condi-tion is inappropriate. The SRME approach is usingiteration to eliminate the free interface-related mul-tiple, which sees any reflection event on seismic re-cords as a certain sub-reflection of free interface-related multiple, using data-consistent principle forconvolution of raw prestack data with itself alongfree interface in time and space domains. On thatbasis, for each shot-receiver pair, the common shotgathers are sorted from raw data at relevant shotpoints respectively and common receiver gathersare sorted from multiple-predicted operators at rel-evant receiver points, and again according to data-consistent principle to composite abovementionedcommon shot gathers with common receiver gath-ers along the free interface, making consistence ofposition of shot points with that of receiver points.Then, the all seismic traces meeting the composi-tion condition are convolved and summed two bytwo, which can predict free interface-related multi-ple of seismic traces of abovementioned shot-re-ceiver pair. Finally, minus of multiple from inputdata is implemented. The paper emphatically intro-duced the principle of SRME approach and illustra-ted the application effects of marine seismic data processing by cases.
