Extension of internal multiple prediction: 1.5D to 2D in double plane wave domain

Internal multiple (IM) can be constructed by primary events based on inverse scattering series (ISS) algorithm. More benefits can be achieved in plane wave domain, such as improved numerical accuracy, no dipping artifacts, and less computing time. In view of that, the plane wave domain ISS algorithm can be considered as a promising way to eliminate internal multiples on land data, even for a full 2D case. With a view to the feasibility of this algorithm on land data with thin layers and large offset, we carried out a complex model using Hussar well-log, and implemented 1.5D algorithm with a constant epsilon value in plane wave domain. In addition to that,   sg pp transform is introduced to make it possible that transfering 1.5D to 2D using ISS internal multiple attenuation algorithm. A simple synthetic 2D case is applied to 2D internal multiple prediction and preliminary achievements of internal multiple prediction exemplified that more relevant and practical benefits can be provided by the double plane wave domain 2D ISS algorithm.