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Comparison of rotary and in-hole motor techniques for drilling horizontal boreholes in coal

Shield-loading studies at an eastern Appalachian minesite

Accurate directional borehole drilling :a case study at the Navajo Dam, New Mexico

Published Year

• 1980-1989 (3) *

Subject

• Boring (1)
• Coalbed methane drainage--Pennsylvania (1)
• Directional drilling--New Mexico--Navajo Dam (1)
• Longwall mining--Appalachian Region (1)
• Mine roof control (1)
• Mine ventilation (1)

Author

• Kravits, S. J. (3) *
• Finfinger, Gerald L. (2)
• Sainato, Albert. (2)
• Barczak, Thomas M. (1)

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