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U.S. Department of Energy
Office of Scientific and Technical Information

Development of a jet-assisted polycrystalline diamond drill bit

Conference ·
OSTI ID:603437

A preliminary investigation has been conducted to evaluate the technical feasibility and potential economic benefits of a new type of drill bit. This bit transmits both rotary and percussive drilling forces to the rock face, and augments this cutting action with high-pressure mud jets. Both the percussive drilling forces and the mud jets are generated down-hole by a mud-actuated hammer. Initial laboratory studies show that rate of penetration increases on the order of a factor of two over unaugmented rotary and/or percussive drilling rates are possible with jet-assistance.

Research Organization:
USDOE Assistant Secretary for Energy Efficiency and Renewable Energy, Washington, DC (United States)
OSTI ID:
603437
Report Number(s):
DOE/EE--0139; CONF-970376--; ON: DE98001891
Country of Publication:
United States
Language:
English