Journal ArticleDOI
Active damping of self-excited torsional vibrations in oil well drillstrings
Jan Dirk Jansen,L. van den Steen +1 more
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TLDR
In this article, an active damping system is proposed to reduce the threshold value of a torsional pendulum by using feedback control, thus extending the working range for vibration-free rotation.About:
This article is published in Journal of Sound and Vibration.The article was published on 1995-01-26. It has received 245 citations till now. The article focuses on the topics: Torsional vibration & Dynamic Vibration Absorber.read more
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Journal ArticleDOI
Stick-Slip Whirl Interaction in Drillstring Dynamics
TL;DR: In this paper, a stick-slip whirl model is presented which is a simplification of an oilwell drillstring confined in a borehole with drilling fluid, and the disappearance of stickslip vibration when whirl vibration appears is explained by bifurcation theory.
Journal ArticleDOI
Vibration analysis of drillstrings with self-excited stick–slip oscillations
TL;DR: In this article, a dynamic model of the drillstring including the drillpipes and drillcollars is formulated and the equation of motion of the rotating drillstring is derived using Lagrangian approach in conjunction with the finite element method.
Journal ArticleDOI
An Integrated Model for Drill-String Dynamics
W.R. Tucker,Charles Wang +1 more
TL;DR: In this paper, the vibrational states experienced by the active components of a drilling assembly such as that found in the oil or gas industry are discussed in the context of an integrated mathematical model.
Journal ArticleDOI
A review of drillstring vibration modeling and suppression methods
TL;DR: A broad survey of the drillstring vibration modeling literature can be found in this paper, where the state-of-the-art models for predicting axial, torsional and bending vibrations (uncoupled and coupled), boundary condition assumptions, equation formulation methods, and applications to vibration mitigation are reviewed.
Proceedings ArticleDOI
Practical approach to modelling and controlling stick-slip oscillations in oilwell drillstrings
Eva M. Navarro-López,R. Suarez +1 more
TL;DR: In this paper, the angular velocity at the drillstring upper part, the torque on the bit and the weight on bit, proved to have a key importance in the reduction of drillstring torsional vibrations.
Related Papers (5)
Practical approach to modelling and controlling stick-slip oscillations in oilwell drillstrings
Eva M. Navarro-López,R. Suarez +1 more