Well Intervention Vessel
Specialised OSV equipped to perform downhole work on subsea wells without a full drilling rig.
Regulatory detail & full definition
Dedicated OSV outfitted to perform downhole work on subsea wells — wireline, slickline, coiled-tubing, riserless light well intervention — without mobilising a full drilling rig. The vessel carries a tower or moonpool-deployed system, a hydraulic intervention package, fluid pumps, and DP-2 or DP-3 station-keeping. Cost per day is a fraction of a drilling rig and mobilisation is faster, making the vessel the standard tool for production-well diagnostics, scale and gas-lift remediation, and zonal isolation. IMCA D 023 covers the diving-supported variants.
Related
Source: Industry usage; IMCA D 023
High confidence
Editorial confidence: how we grade.