Mobilization of OSV “Grand Canyon II” in Sattahip

2022 – Wellhead Removal


Removal of 87 Wellheads by Internal Cutting 




Multi-Year Program of Wellhead Decommissioning


Multiple Fields, Gulf of Thailand

Main Assets Deployed:

OSV “Grand Canyon II” – 2 x Schilling UHD WROV Systems – Abrasive Multi String Cutter (MSC) – Multi Well Retrieval Tool (MWRT) – Inversion Table & Rack System

Scope of Work

300 day contract for subsea wellhead abandonment and decommissioning services including the provision of Offshore Support Vessel (OSV) services, UHD type WROV Systems with qualified ROV personnel for performing inspection work, well abandonment related activities, subsea wellhead decommissioning, light construction work, cement squeeze and other related decommissioning services.


Wellhead in laydown frame

Wellhead being lowered to deck

Deck handling of recovered and cleaned wellheads