Aliasing and sampling problems for multi-source and multi-cable data acquisition

Abstract

3D marine acquisition techniques which use multi-source, multi-cable methods have well known sampling and data processing problems. Low-fold acquisition and aliasing can be caused by the undersampling in shot, i.e. too large a shot interval. The use of multi-cable recording can result in irregular offset and azimuth distributions. In this paper we describe possible methods for handling some of these problems by use of pre-stack interpolation techniques.