Shot repetition: an alternative approach to blending in marine seismic

Deblending algorithms based on current blended acquisition design often require a dense source sampling to ensure a high-quality result. However, in practice the spatial source sampling is usually too coarse. In this abstract, we discuss an alternative approach to blending in marine seismic, called shot repetition, which can overcome this requirement. Shot repetition refers to activating a broadband source more than once at the same location. We extend the general forward model of source blending to include the case of shot repetition. By exploiting the repetitive shots acquired at the same location, deblending can be implemented in the common-shot domain, and therefore our method has no restrictions on source sampling. We applied the method to numerically blended field data and obtained satisfactory results.