The UK Offshore Oil and Gas Fabricators Directory 2016

Projects and Markets (continued)

Byford Dolphin SPS renewal and upgrades

H&W successfully completed the dry docking and class renewal survey of the Byford Dolphin Mobile Offshore Drilling Unit (MODU) during the summer. The rig left Belfast in July following a six-month dry docking in the shipyard’s main building dock, during which time circa 1.5 million man-hours were expended. H&W and Dolphin Drilling implemented an integrated project organisation dedicated solely to the successful execution of the project, covering the many disciplines, aspects and subcontractors of the scope. Last in Belfast during 2004/2005, this Aker-H3 design semi-submersible drilling rig will have its SPS renewal survey and several major modifications and upgrades, including fabricating and adding two new columns and four buoyancy boxes for stability and deck load improvements; fitting a new larger blowout preventer (BOP) requiring underdeck stiffening; and fabricating and installing a new BOP control house and installing new drill string handling equipment. An intense three month period of pre-fabrication preceded the arrival of the rig, during which new steel sections were constructed. Over the years H&W and Dolphin Drilling have collaborated on several occasions, having fabricated pontoons, column extensions, power generation and accommodation modules for other vessels in the Dolphin fleet.

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THE UK OFFSHORE OIL AND GAS FABRICATORS DIRECTORY 2016