Extended-Frequency Marine Source Technology for Seismic Acquisition

This technical report discusses the advancements in extended-frequency marine source technology, specifically the Gemini source, which enhances low-frequency energy while maintaining high-frequency content for seismic imaging. The document outlines the challenges faced in the Equatorial Margin of Brazil, including environmental concerns and operational inefficiencies due to strong marine currents. It details the implementation of the Gemini source in various acquisition configurations, highlighting its compatibility with conventional seismic vessels and its ability to reduce environmental impact by decreasing marine mammal exclusion zones. The report presents case studies demonstrating the effectiveness of the Gemini source in both ocean bottom node (OBN) and streamer surveys, emphasizing improvements in data quality and operational efficiency. Furthermore, it discusses future trends and the necessity for ongoing enhancements in equipment and processing workflows to fully leverage the benefits of this new technology. Overall, the report provides a comprehensive examination of the Gemini source's role in advancing deepwater exploration.