This paper analyses a control mechanism designed to signiยฎcantly ameliorate the sustained excitation of torsional relaxation oscillations (slipยฑstick) due to frictional torques generated by an active bit during drilling operations with an extended drill-string. The proposed mechanism of torsional re
Effect of crack on drilling vibration
โ Scribed by Bo-Wun Huang; Jao-Hwa Kuang; Pu-Ping Yu
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 372 KB
- Volume
- 322
- Category
- Article
- ISSN
- 0022-460X
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