First US-built deepwater semisubmersible enters Gulf of Mexico fleet

The ENSCO 7500 is the first semisubmersible to be built in the US since 1983. The rig features drill-floor, BOP, and dynamic positioning redundancy. Photo courtesy of ENSCO (Fig. 1).Click here to enlarge imageThe first-ever, US-built, deepwater semisubmersible, ENSCO International Inc.'s ENSCO 7500, is scheduled to spud its first well this month in East Breaks Block 599, Gulf of Mexico (GOM) under a 3-year contract with Burlington Resources Inc. Once this term expires, Burlington has three additional 1-year options. In addition to this rig, ENSCO has 22 jackups operating in the GOM, 8 in the North Sea, 2 in the Middle East, 1 in Australia, and 4 in Southeast Asia. The company has 9 ...

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