Opertational methodology

The survey was acquired over a 3-km grid of 272 receivers. Adjacent receiver lines were staggered in the in-line direction to provide maximum protection against spatial aliasing.
Twenty-three source lines were towed parallel to the existing seismic lines. For each source line, at least three receiver lines were active throughout the survey to give wide azimuth sampling of the subsurface volume. This approach ensured that the entire volume was investigated.