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Summary Many geophysical surveys have been acquired in both offshore and onshore environments for the purpose of oil and gas exploration and production. These surveys represent a significant investment. Much has been learned about survey optimization. Simple route optimization is insufficient to deal with the real world, in which geophysical crews face hazards, both static (rigs, reefs etc.) and dynamic (pipelaying barges, ships, marine mammals, tides etc.). In the marine environment, data may be acquired around these hazards using both towed streamer or seabed nodes, or a combined (hybrid) technique. Increasingly, these techniques are being applied to the wind industry, and it is important that knowledge learned in E&P applications is effectively transferred to offshore wind and other related industries. In this paper we show how a preliminary survey plan can be created based on a-priori knowledge of the environment, and how the plan can be updated as unexpected conditions arise. It should be noted that an optimized survey is not just the most cost-effective solution, it is almost always the solution having the lowest environmental impact, due to reduced sound emissions (less shots) and reduced IMO regulated emissions of CO2, NOX and SOX etc. associated with reduced vessel survey distance. |
