Effect of downhole assembly and cutter geometry on stability of drillstrings equipped with polycrystalline diamond compact (PDC) cutters
Conference
·
OSTI ID:382798
- Univ. of Southwestern Louisiana, Lafayette, LA (United States). Mechanical Engineering Dept.
Stability of drillstrings equipped with PDC cutters depends on many factors such as the design of the drillstring, design of the cutter, and formation type. In this paper, the authors show that the drill pipe plays a minor role in stability in comparison with that of the drill collars. They also show that the number of cutter blades affects the location of the stability pockets, while their spacing affects the size of these pockets. Using this data, a combination of drill collar and cutter design can be used to provide operating speeds resulting in maximum stability of the drillstring.
- OSTI ID:
- 382798
- Report Number(s):
- CONF-960154--; ISBN 0-9648731-8-4
- Country of Publication:
- United States
- Language:
- English
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