Exploration OBN and Streamer Survey Design Methodology

This technical report discusses the design methodology for exploration surveys utilizing extended-frequency sources and Full Waveform Inversion (FWI). It outlines the operational requirements and iterative processes involved in optimizing survey design for both Ocean Bottom Node (OBN) and streamer projects. The report presents case studies from the Gulf of Mexico and offshore Angola, detailing the configurations and parameters used to maximize shot sampling while adhering to operational constraints. The methodology includes modeling based on real and synthetic data to determine node and source spacing, as well as adjustments made to shooting schemes to accommodate the unique characteristics of extended-frequency sources. The report emphasizes the importance of balancing operational efficiency with environmental considerations, highlighting the benefits of using advanced sources in achieving effective subsurface imaging. Additionally, it notes the iterative nature of survey design, which involves continuous refinement of parameters to meet specific exploration objectives.