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

Description

Related Names

Watson, Pamela J.
Tuzinski, Patrick A.
Engelmann, William H.
Pahlman, J. E. (John E.)

Language(s)

English

Published

Pittsburgh, PA : U.S. Dept. of the Interior, Bureau of Mines, 1989.

Subjects

Directional drilling.
Rock-drills.
Drilling muds > Drilling muds / Testing.

Physical Description

18 p. : ill., tables ; 28 cm.

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