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- Title
ANALYSIS ON THE DYNAMIC CHARACTERISTICS OF STICK-SLIP VIBRATION IN DEEP WELL DRILL STRING SYSTEM.
- Authors
Long WANG; Zhengbo HAN; Jinduo WANG; Liurui GUO; Rui LI
- Abstract
In this paper, based on the non-linear mechanics theory of the drill pipe, a mechanical model of stick-slip vibration of the drill pipe has been established by considering the torsional properties of the drill pipe, kinetic energy and the motion law of the bit. The example calculations and sensitivity analysis of the parameters are carried out. The results show that increasing the rotational speed, viscous damping, length of the drill collar and de-creasing the weight of bit have the effect of suppressing the stick-slip vibration.
- Subjects
DRILL stem; DRILL pipe; VIBRATION (Mechanics); NONLINEAR mechanics; NONLINEAR theories; SOIL mechanics; TORSIONAL load; WELLS
- Publication
Thermal Science, 2024, Vol 28, Issue 2A, p1161
- ISSN
0354-9836
- Publication type
Article
- DOI
10.2298/TSCI230721040W