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Oilwell Drilling Engineering

By
Don W. Dareing
Don W. Dareing
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ISBN:
9780791861875
No. of Pages:
512
Publisher:
ASME Press
Publication date:
2019

Vibrations in drillstrings have been a concern for many years. Equipment failures, especially those that occur in the bottom-hole assembly, can be linked directly to severe vibrations. Equipment, associated with directional drilling has become more and more complex and vulnerable to every mode of vibration. Reliability and maintainability have become important considerations in downhole tool design. This chapter considers the causes and control of mechanical vibrations along drillstrings, especially in the bottom hole assembly region.

7.1
Axial Vibrations in Drillstrings
7.2
Torsion Vibrations in Drillstrings
7.3
Lateral Vibrations in Drillstrings
7.4
Vibration Control
7.5
Summary of Key Equations
7.6
Problems
7.7
List of References
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