Comparing Enhanced Frequency and Conventional Seismic Sources Offshore Angola

This technical report presents a comparison between enhanced frequency and conventional seismic sources utilized in offshore Angola. The document outlines the increasing interest in low-frequency marine source technology, specifically focusing on the Gemini enhanced frequency source and its application in a recent multi-client exploration survey. The methodology section details the acquisition process, including the deployment of multiple enhanced frequency sources and the configuration of streamers. Results indicate that the enhanced frequency source generates lower peak amplitudes but provides improved low-frequency content compared to conventional sources. The report includes various figures illustrating wavelet stability, amplitude spectra, and the frequency characteristics of both source types. The findings conclude that enhanced frequency sources are essential for seismic exploration, particularly in improving data quality for processing and velocity model building. The report emphasizes the advantages of using enhanced frequency sources in conjunction with advanced acquisition techniques.