Specialized steel enables deep, high-pressure completions in Tahiti field

Practical Drilling TechnologyGrant Prideco LLM designed connectors that use a new steel alloy for high-pressure completions in the Gulf of Mexico. Schlumberger Ltd. used the same steel to construct a new high-pressure 7-in. perforating gun.In April 2002, ChevronTexaco Corp. announced its discovery of the deepwater Tahiti field in the Gulf of Mexico, potentially the source of 400-500 million bbl of recoverable oil. The challenge was to design what could be the deepest and highest pressure producing oil wells in the gulf.Water depths in the Tahiti field are about 4,000 ft and total well depths exceed 26,000 ft. ChevronTexaco operates the Tahiti project with 58% working interest; partners ar...

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