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The AAPG/Datapages Combined Publications Database
AAPG Bulletin
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A yearly study by Petroleum Engineer Publishing Company tabulates the number of wells, locations, total well costs, and bit use, and notes trends toward deeper drilling in various oil-country areas such as the Delaware basin of west Texas.
Deep drilling (15,000 ft and deeper) has increased in recent years. The locality and success ratio of ultra-deep drilling (20,000 ft and deeper) are reviewed, and the 1968 deep-drilling data, which are available early in 1969, are compared with 1965, 1966, and 1967 data.
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