Demultiple for Wide-Tow Broadband Acquisition in a Shallow Water Environment: A Case Study from the NW Shelf, Australia

Abstract

Given its importance, shallow water demultiple has been under constant investigation for many years. Significant progress has been made, effective processing flows have been established, and excellent results have been achieved in different basins across the world. There remain however significant challenges with demultiple in shallow water environments, especially when it comes to broadband acquisition with a wide tow configuration. In this paper, we discuss a shallow water demultiple processing flow used on a recently acquired wide tow broadband dataset in the Northern Carnarvon basin, North West shelf Australia. We demonstrate that the removal of shallow water multiples can be optimized in data acquired in this manner by using a combination of demultiple techniques.