Plane-Wave Marchenko Imaging Method
M.H.A. ALMOBARAK (TU Delft - Civil Engineering & Geosciences)
Kees Wapenaar – Mentor (TU Delft - Civil Engineering & Geosciences)
Johno van IJsseldijk – Graduation committee member (TU Delft - Civil Engineering & Geosciences)
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Abstract
Seismic imaging is often used to interpret subsurface formations. However, images obtained by conventional methods are contaminated with internal multiples. The Marchenko method provides the means to obtain multiple-free subsurface images. Due to the high computational cost of the conventional pointsource Marchenko imaging method, the less expensive plane wave Marchenko imaging method can be used to produce subsurface images along planes. This method can be repeated for different incident angles to produce images that account for the variable dip of the subsurface structures. In this abstract, we present the results of applying the plane wave Marchenko imaging method to a 2D marine dataset over the Vøring basin, the North Sea. The results show that, in comparison to the conventional plane-wave image, the plane-wave Marchenko imaging method successfully suppressed internal multiples, resulting in improvements in both the amplitude and continuity of the seismic events.