Dynamically Positioned Drilling Vessels

Drill ships and semi-submersibles drilling rigs equipped with computer controlled thrusters, which enable them to maintain a constant position relative to the sea floor without the use of anchors and mooring lines while conducting floating drilling operations.

Source: API RP 64, Recommended Practice for Diverter Systems Equipment and Operations, Second Edition, November 2001 (March 1, 2007). Global Standards


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