CFP-based internal multiple removal, the layer-related case

Summary Th es urface multiple removal method has been successfully applied to several synthetic and field datasets. The extension to internal multiples can be made by including data-driven propagation operators towards the internal multiple generating boundary, such that the use of explicit velocity-depth model information is avoided. By CFP redatuming to a suitable level between reflectors, the upward reflectivity can be taken into account such that all internal multiples generated within a complete layer are addressed in one step, without using a velocity model.