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Zero-surface-charge-controlled drilling for enhanced penetration and extended bit life

Published Year

• 1980-1989 (1)

Subject

• Directional drilling (1)
• Drilling muds--Testing (1) *
• Rock-drills (1) *

Author

• Engelmann, William H. (1)
• Pahlman, J. E. (1)
• Tuzinski, Patrick A. (1)
• Watson, Pamela J. (1)

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