The scope of work encompassed starting with a veteran semisubmersible rig; renovating and outfitting it with updated drilling and marine equipment to render the rig capable of drilling deeper wells. Major tasks such as construction of new derrick (single lift), new BOP handling structure, addition of winch decks (four corners), new riser decks, new ROV deck, raised mud pit roof, converted chain lockers to bulk mud tanks, and new cement deck. Large structures required major lifts of 50 tons – to larger lifts of 300+ tons; all done safely as planned and scheduled by the yard. The helicopter deck was set and secured (crane released for other work) in record time - less than one work shift. New forward and aft lifeboat decks were set and secured in less than one shift, as safety, planning, engineering and production personnel cooperated to expedite the tasks.
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