Abstract

Survey design is an integral part of any 3D seismic survey programme. Cost-effective design which helps in meeting the geological objectives is a necessity. Generally, swath shooting is carried out in the 3D surveys. Presently, the shooting pattern has shifted from swath based to patch centred shooting. In patch centred shooting, the shots are always at the centre of a template. Both the swath shooting and patch centred shooting have their own advantages and disadvantages. The detailed analysis of both types of shooting show that geophysical attributes are better achieved in patch-centred shooting whereas swath shooting serves better for operational purposes during implementation in the field. The detailed analysis of both types of 3D acquisition geometries is carried out and the inferences drawn from the same are presented in this paper.