Paper submitted to 5th EAGE Marine Acquisition Workshop, by O.C. Orji, T. Klüver, M. Widmaier and L. Limonta (TGS).
Abstract
Narrow tow-source configurations lack sufficient near-offset sampling to enable high-quality 3D
imaging of the shallow subsurface. Advanced acquisition configurations with multiple wide-tow
sources have been presented by Widmaier et al. (2019). This technology can be leveraged to improve acquisition efficiency or enhance image quality. By providing better near offset coverage, improved spatial sampling, and higher trace density, they are effective for imaging both shallow and deep targets. The emergence of ultra-high resolution 3D seismic acquisition for offshore wind site characterization and high-density 3D for CCS container delineation has led to an adapted wide-tow multi-source concept with uniform source lines, as described by Widmaier et al. (2023). These designs feature uniform source-line sampling, dense near-offset coverage, small bin sizes, high trace density, and compact, environmentally friendly sources. In this paper, we describe survey design considerations for these.