A comparison of water jet, abrasive jet and rotary diamond drilling in hard rock
Conference
·
OSTI ID:357742
- Tempress Technologies Inc., Kent, WA (United States)
A comparison of approaches for rapidly drilling a small-diameter (25--50 mm), near-surface, hole through a short-radius (30-m) arc in a variety of hard rock types is provided here. Four approaches were considered: Rotary diamond drilling with a downhole motor; Ultra-high pressure (UHP) water jet drilling; Mechanically-assisted UHP water jet drilling; and Abrasive jet drilling (abrasive water jet and abrasive slurry jet). Data relating mechanical and hydraulic drilling parameters with rate of penetration for each of these approaches was compiled from the literature and from drilling tests of all four techniques in black granite. The drilling data is summarized in a common format to provide a direct comparison of drilling efficiency; jet pressure and hydraulic power; thrust and torque requirements and abrasive feed.
- OSTI ID:
- 357742
- Report Number(s):
- CONF-980213--
- Country of Publication:
- United States
- Language:
- English
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