Improving Seismic Resolution By Near-Offset Multiple Supression

We present and discuss some results of a recently developed method to eliminate multiples in the near-offset<br>range. The application of the method improves seismic resolution by preserving near offset information. The<br>main steps of the application of the method are (a) simulation of multiples by means of a Kirchhoff-type<br>summation applied to a common near-offset section; (b) application of an adaptive filter to adjust the simulated<br>multiple and (c) subtraction from the original data. In this present form, it exactly reproduces the sea-bottom<br>multiples and perform a good approximation to corresponding peg-legs. Combination of the method with a<br>Radon filtering technique has been successfully applied to efficiently remove multiples in all offsets.