Major Shallow Water Oil and Gas Find

Friday, September 24, 1999
Sperry-Sun, a Division of Dresser Industries, Inc., participated in drilling a significant crude oil and natural gas discovery in Anadarko Petroleum Corp.'s subsalt exploration program. This discovery - called Tanzanite - is located in the Gulf of Mexico at Eugene Island South Addition Block 346 in 314 feet of water about 75 miles offshore Louisiana. Anadarko believes the Tanzanite field contains at least 140 million boe. Sperry-Sun provided pressure-while-drilling (PWD) services from 11,000 ft. MD to TVD of 14,350 ft. in drilling the exploration well (the OCS-G 14482 No. 1) and provided full "triple combo" services from 11,800 ft. MD to 13,643 MD. In this latter portion of the well, 450 ft. of continuous hydrocarbon pay were encountered; three additional pay zones totaling approximately 70 ft. of net pay are also present in the wellbore. Sperry-Sun's triple combo services provided the log of record for the hole.

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