Abstract

A seismic signal is characterized by its frequency content and signal-to-noise ratio (S/N). The quality of acquired seismic data is mainly governed by these two parameters. During seismic surveys it is ensured that the input parameters like placing of shot in a proper shooting medium, good ground coupling of sensors are optimum so that quality of acquired data is very good. Apart from this, shot and receiver positioning plays an important role in seismic data quality. Shot mis-positioning may lead to serious errors during data processing and it affects the stack quality. The present study envisages quality analysis of acquired 3D seismic data with respect to frequency content, signal content and shot-receiver mis-positioning. This study is based on a 3D reflection seismic survey in Bengal Basin of India.