The Suppression of Isolated Back-Scattered Noise

The problem of back-scattered coherent noise being interpreted as reflector energy is becoming more common, especially in the North Sea, due to the increased density of rigs, support versels, seafloor debris, etc. The problem is almost certainly present in the majority of modern marine surveys but usually goes unnoticed and either manifests itself as a 'phantom' event or degrades the stack due to its effect on the velocity analysis.