3rd June, 2026
International Well Control Forum (IWCF) Expands Glossary to Include Four New Languages and Downloadable PDF Versions
A remotely opened and fail-safe close valve in the production flow path of Xmas Tree.…
An unmanned vehicle for offshore subsea use. Source: API RP 59
A remotely-controlled wireline lubricator system installed onto the subsea Xmas Tree at the seabed for…
Part of the SSTTA, which isolates the well from the TBIRS with or without WL…
The surface flow head (SFH) or surface test tree (STT) is a well barrier element…
A system for controlling subsea equipment during subsea completion and interventions. IWOCS uses hydraulic/electric/fibre optics,…
The ITC is used in HXT’s, installed above the tubing hanger to provide the landing…
Used for intervention, flowing or vertical tree installation. It contains a series of isolation and…
Unitized assembly that interfaces with the tree upper connection and allows sealing of the tree…
The lower master valve in the production bore of the subsea vertical tree.
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IWCF develop and administer well control training, assessment and certification programmes on behalf of the global oil and gas industry.