Common designs of jack ups built in the US

Among the most common designs built in the US, the Tarzan is the smallest class, while the Super 116E and 240C are approximately the same size (Fig. 5). The Super Gorilla is the largest rig class by a large margin. LeTourneau Tarzan The Tarzan is designed for shallow-water (less than 300 ft), deep drilling (35,000 ft) in moderate environments. The Tarzan was designed to provide high pressure-high temperature (HPHT) drilling at a low cost, but the design has not been internationally successful. Four Tarzan class rigs exist, all built between 2004 and 2008 at the Vicksburg, Miss., shipyard and all owned by Rowan. Unlike more-traditional LeTourneau designs, the Tarzan uses three tubular chor...

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