Zero-surface-charge-controlled drilling for enhanced penetration and extended bit life / by John E. Pahlman [and others]
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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.
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Series: | Report of investigations (United States. Bureau of Mines) ;
9227. |
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