ENABLE

Elastic iNversion for Advanced ground modelling in offshorE wind

Publieke samenvatting / Public summary

Aanleiding
Offshore wind is scaling fast, but site investigations remain costly and slow because they rely on many Cone Penetration Tests (CPTs) with limited spatial coverage. Ultra-high-resolution seismic (UHRS) surveys already map whole sites, yet their potential to deliver engineering parameters is underused. By combining full-physics WEB-AVO inversion with machine learning, seismic data can be translated into design-relevant properties (?, M, Gmax) and CPT-equivalent predictions (QT, RF). This enables fewer intrusive tests, shorter vessel time, lower emissions and faster, better-informed decisions for wind farm development.

Doelstelling
The project will operationally validate the WEB-AVO workflow for offshore wind seabed characterization. We will recover ? and M from UHRS, derive Gmax, and—via calibration at co-located CPTs—predict QT and RF across the full survey area. We will quantify accuracy at blind CPT sites, assess uncertainty and spatial resolution, and define data-quality thresholds and QC protocols for repeatable use. The outcome supports DEI+ objectives by enabling faster, more cost- and resource-efficient site investigations with a reduced offshore footprint.

Korte omschrijving
Six work packages: (1) identify and secure two UHRS+CPT datasets and one public legacy dataset; (2) adapt and configure the WEB-AVO workflow and QC; (3) process and validate Dataset 1 with blind-site testing; (4) apply and optimize on Dataset 2 and compare robustness/repeatability; (5) exploratory application to public legacy seismic data for early-stage screening; (6) consolidate results into a pilot-ready release, technical manual and scale-up plan. DiReC leads technology, processing and validation; Fugro supplies datasets and scientific/operational guidance.

Resultaat
A pilot-ready, documented WEB-AVO workflow validated on two offshore UHRS+CPT datasets; velocity cubes, resolution and uncertainty maps; quantified accuracy at blind CPT locations; and a comparative assessment of an exploratory case for screening use. The project delivers evidence for CPT/time/cost reduction while maintaining design-grade confidence, plus recommendations to enable Fugro to scale the method into routine site investigations.

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