Optimal marine streamer acquisition with High-Density 3D

Historically though, 3D marine streamer acquisition has been forced to compromise spatial sampling in the name of efficiency and cost. This compromise translates to noise and degraded resolution when processing the data. A significant component of the seismic “noise” contaminating 3D images actually arises during processing, as an unfortunate and inescapable artifact from poor 3D spatial sampling. Aliased data create noise during the application of any multi-channel processing operation, notably prestack migration. If the cross-line acquisition dimension could be sampled at an equally small interval as the inline dimension, a much larger frequency bandwidth than typical of standard 3D marine streamer acquisition could be preserved throughout all stages of processing, free of aliasing and free of artifacts.