Harnessing 3D ultra-high-resolution seismic technology for offshore wind farm development: Advancements, challenges, and future prospects

Abstract The global transition toward renewable energy has intensified the demand for more offshore wind power generation. Advanced geophysical techniques to enhance near-surface site characterization and ensure the rapid, safe, and efficient installation of wind turbines are of considerable value. Traditional 2D ultra-high-resolution seismic (UHRS) methods, while useful, generally lack the resolution and spatial coverage required for modern offshore projects. Depending on the requirements, 2D surveys are often acquired over multiple years. In contrast, 3D UHRS technology, acquired in a single campaign, provides detailed and comprehensive subsurface data, significantly improving the reliability of ground models. This article highlights the value of 3D UHRS technology in offshore wind farm development, demonstrating the importance of an integrated approach to survey design, acquisition, and data processing and how this enhances subsurface imaging, reduces uncertainties, and supports more informed decision making. The technology's ability to capture volumetric data across an entire survey area or along corridors allows for the accurate mapping of critical geological features, such as key soil units and hazardous objects (e.g., shallow gas and boulders). The expanded 3D UHRS volume offers flexible options for adjusting turbine locations if any anomalies are detected at the initial sites. Furthermore, 3D UHRS subsurface data provide the reliable framework required for quantitative interpretation, particularly in predicting soil properties, thereby optimizing foundation designs and reducing the need for extensive geotechnical investigations. Most importantly, an integrated 3D UHRS solution can reduce the time required for new wind farm developments to become fully operational and deliver clean energy to consumers.