Abstract
Summary The inverse scattering series (ISS) internal multiple attenuation (IMA) method is modified and improved by identifying some multiple generators to remove target internal multiples. The ISS IMA method is a fully data-driven method that can predict all internal multiples for all horizons at once, without requiring any subsurface information. However, data-driven method requires high-quality data and it’s also high computational cost. Therefore, by identifying certain multiple generators, the IMA method can reduce computational cost and improve efficiency to predict and remove the target internal multiples under strong reflectors in the reservoir. The modified IMA method provides added value for attenuating the target internal multiples. It is applied on synthetic and field data to remove internal multiples for some specified generators. Test results demonstrate that the modified IMA method can remove effectively internal multiples step by step for the target reservoir.
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