Zero-surface-charge-controlled drilling for enhanced penetration and extended bit life / by John E. Pahlman [and others]

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Bibliographic Details
Corporate Author: United States. Bureau of Mines
Other Authors: Pahlman, J. E. (John E.)
Other title:Zero surface charge controlled drilling for enhanced penetration and extended bit life.
Format: Government Document Book
Language:English
Published: Pittsburgh, PA : U.S. Dept. of the Interior, Bureau of Mines, 1989.
Series:Report of investigations (United States. Bureau of Mines) ; 9227.
Subjects: