Self-Elevating Drilling Unit

Cameron introduced the Letourneau Jaguar-class self-­elevating mobile offshore drilling unit. Using the Letourneau 1,000-kip elevating unit and the Letourneau Storm Lok leg-­fixation system, the Jaguar is capable of operating in water depths up to 400 ft in harsh conditions or 500 ft in moderate waters. The rig is also capable of drilling ultrahigh-pressure and ultrahigh-temperature wells to 40,000 ft with a hook load of 2.5 million lbf and setback capacity of 1,700 kips in quads, filling the market gap between the typical premium and ultralarge jackups. The Jaguar class builds upon the success of previous Letourneau designs, which account for the largest number of active jackup rigs in operation today. Unique to Letourneau rig designs, the Jaguar requires a leg-fixation system only in severe storm conditions. This design feature allows for approximately a half-day savings each time a rig is moved. Another unique feature of the Jaguar is the design of its spud can and leg well, which allows for pulling individual legs above the waterline; this in turn permits classification inspection without dry docking, potentially saving weeks of downtime and hundreds of thousands of dollars.

Cameron’s Letourneau Jaguar-class self-elevating drilling unit.


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