Suppression of Water-Layer Multiples and Peg-Legs by Wave-Equation Approach

IM-1 SUPPRESSION OF WATER-LAYER MULTIPLES AND PEG-LEGS BY WAVE-EQUATION APPROACH DMITRI LOKSHTANOV 1 Norsk Hydro Research Centre PO Box 7190 5020 Bergen Norway Summary. Removal of water-layer multiples and peg-legs is still one of the major processing problems in offshore exploration. The requirements on the optimal wave-equation approach for the suppression of such multiples are the following: 1) Without knowledge of the subsurface structure (except the approximate geometry of the water-bottom) it should correctly predict the kinematics of multiples. 2) The adaptive subtraction of the predicted multiples should be consistent with the data model (correct multiple suppression operator) and should