Effect of blade spacing of polycrystalline diamond compact (PDC) bits on stability of drillstrings
Conference
·
OSTI ID:485126
- Univ. of Southwestern Louisiana, Lafayette, LA (United States)
The geometry of PDC bits, particularly their blade spacing, plays a major role in stability of the drillstrings to which they are attached. In this paper, the authors use a bit model in which the cutters are arrayed in radial blades and examine the effect of blade spacing on stability. They show that for a given bit size, blade spacing may be changed to produce stable cutting in a desired speed range. This data, combined with downhole assembly design, may be used to optimize operating conditions for drillstrings.
- Sponsoring Organization:
- National Science Foundation, Washington, DC (United States)
- OSTI ID:
- 485126
- Report Number(s):
- CONF-970146--; ISBN 1-890277-03-7
- Country of Publication:
- United States
- Language:
- English
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