A method can include receiving an inside stack and an outside stack; generating a multiple reflections model based at least in part on the inside stack and the outside stack; receiving multidimensional seismic data that includes representations of primary reflections and multiple reflections; and generating processed multidimensional seismic data by applying the multiple reflections model to the multidimensional seismic data. Various other apparatuses, systems, methods, etc., are also disclosed.