Platform Supply Vessel
Abbreviation: PSV
Offshore supply vessel dedicated to ferrying personnel, deck cargo, and bulk products (mud, brine, water, fuel) between shore base and offshore installation.
In practice
Daily supply runs to offshore installations. DP-2 standard; OOW maintains DP capability.
Regulatory detail & full definition
A Platform Supply Vessel (PSV) is an offshore supply ship dedicated to ferrying deck cargo and bulk products - drilling mud, brine, drill and potable water, fuel and methanol - between a shore base and offshore installations, along with some personnel. Typically 60-90 m long and 4,000-5,000 DWT, it is built to DP-2 standard for holding position alongside a platform, and its tanks are arranged to keep the various bulk products segregated. Unlike an AHTS it carries no anchor-handling gear; major operators include Tidewater, Bourbon, DOF and Solstad.
Related
Source: IMCA M 117; offshore industry usage
High confidence
Editorial confidence: how we grade.