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Development of a whirl-resistant bit

Journal Article · · SPE (Society of Petroleum Engineers) Drilling Engineering; (USA)
DOI:https://doi.org/10.2118/19572-PA· OSTI ID:5806962
Bit whirl is a major cause of early failure and reduced performance of polycrystalline-diamond-compact (PDC) bits. Attempts to control bit whirl by stabilizing the drill string have been unsuccessful, but a low-friction bit design has been discovered that substantially eliminates whirl. The low-friction design is based on placing the cutters so that the net imbalance force from the cutters is directed toward a smooth pad that slides along the wellbore wall.
OSTI ID:
5806962
Journal Information:
SPE (Society of Petroleum Engineers) Drilling Engineering; (USA), Journal Name: SPE (Society of Petroleum Engineers) Drilling Engineering; (USA) Vol. 5:4; ISSN 0885-9744; ISSN SDENE
Country of Publication:
United States
Language:
English

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