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Challenges of deep drilling

Journal Article · · Drilling-DCW; (United States)
OSTI ID:6478745
Deep drilling poses major problems when high temperatures, high pressures, and acid gases are encountered. A combination of these items usually requires extensive planning, exotic materials, long drilling times, and heavy expenditures. Only 2 wells have been drilled below 30,000 ft in the US, the deeper a 31,441-ft hole in 1974. The deepest well in the world is reported to be in the Soviet Union, recently drilled below 34,895 ft, with a target depth of 15,000 m (49,212 ft). A review of current deep drilling technology and its capabilities is given.
OSTI ID:
6478745
Journal Information:
Drilling-DCW; (United States), Journal Name: Drilling-DCW; (United States) Vol. 42:10; ISSN DRDCD
Country of Publication:
United States
Language:
English

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