Analysis and Control of Stick-Slip Oscillations in Drilling Systems

Abstract

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Stick–slip vibrations in oil well drillstring: A review

“…It showed that the axial stick-slip phenomenon is dependent on the rotational bit speed and that the generation of torsional stick-slip phenomenon is driven by the axial motions, which means that mitigation of axial vibrations may also suppress torsional vibration. Besselink et al 67 furthered the work of mitigation of stick-slip vibration by using feedback control strategies.…”

“…Besselink et al. 67 furthered the work of mitigation of stick–slip vibration by using feedback control strategies.…”

Study on the mechanism of drilling speed increase considering the axial vibration of drill string

“…Severe drill string vibration will lead to increased dynamic stress of the drill pipe, premature failure of the drill string, affecting the service life of the drill bit and causing interference to the drilling measurement system, resulting in an increase in economic costs, affecting drilling speed and drilling efficiency and in severe cases may lead to downhole accidents [5][6][7][8][9]. Therefore, the research on the dynamics of the drill string related to the vibration of the drill string has become a hot topic in current research and the related research has important economic benefits and practical guiding significance [10][11][12][13]. During the drilling process, when the hard formation is encountered, it is necessary to increase the weight of the drill or replace the drill bit to achieve the rock fracture [14][15][16].…”

Active control of stick-slip torsional vibrations in drill-strings

“…More recently, in Liu et al (2014), a coupled axialtorsional model with state-dependent delay is considered. In Besselink et al (2016), a feedback control strategy to mitigate torsional stick-slip oscillations using a coupled axial-torsional model for the drill-string is proposed.…”