Deblending OBC data with dual and triple simultaneous sources offshore Trinidad

Deblending shallow water OBC data can be challenging. High blending fold, strong early arrivals, shear wave energy, and background noise all add to the complexity of the problem. Using an offshore Trinidad OBC survey, including dual and triple sources, we demonstrate the effectiveness of a specialized deblending strategy designed to tackle these challenges. This strategy combines the merits of two deblending techniques: cross-talk modeling and subtraction, and impulsive denoising. The process is guided by a blending-noise level map deterministically derived from actual shooting times. Test results on both P and Vz components confirm the effectiveness of this approach and raise the confidence level of the quality of deblended data.