Hysteretic bit/rock interaction model to analyze the torsional dynamics of a drill string

被引：27
|
作者：
Real, F. F. [1 ,3 ,4 ]
Batou, A. [2 ]
Ritto, T. G. [4 ]
Desceliers, C. [3 ]
Aguiar, R. R. [5 ]
机构：
[1] Natl Inst Metrol Qual & Technol INMETRO, Rua Santa Alexandrina 416, BR-20261232 Rio De Janeiro, RJ, Brazil
[2] Univ Liverpool, Sch Engn, Dept Mech Mat & Aerosp Engn, Liverpool L69 7ZF, Merseyside, England
[3] Univ Paris Est, MSME UMR CNRS 8208, Lab Modelisat & Simulat Multi Echelle, 5 Bd Descartes, F-77454 Marne La Vallee, France
[4] Univ Fed Rio de Janeiro, Dept Mech Engn, BR-21945970 Rio De Janeiro, RJ, Brazil
[5] Brazil Res & Geoengn Ctr, Schlumberger Oilfield Serv, Rio De Janeiro, Brazil
来源：
MECHANICAL SYSTEMS AND SIGNAL PROCESSING | 2018年 / 111卷
关键词：
Drill string nonlinear dynamics; Bit/rock interaction model; Torsional vibrations; Stick-slip oscillations; Stability map; Hysteresis; STICK-SLIP OSCILLATIONS; VIBRATIONS; SYSTEMS; FRICTION;
D O I：
10.1016/j.ymssp.2018.04.014
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The present paper proposes a novel hysteretic (non-reversible) bit/rock interaction model for the torsional dynamics of a drill string. Non-reversible means that the torque-on-bit depends not only on the bit speed, but also on the bit acceleration, producing a type of hysteretic cycle. The continuous drill string system is discretized by means of the finite element method and a reduced-order model is constructed using the normal modes of the associated conservative system. The parameters of the proposed hysteretic bit/rock interaction model is fitted with field data. The non-linear torsional vibration and the stability map of the drill string system are analyzed employing the proposed bit/rock interaction model and also a commonly used reversible model (without hysteresis). It turns out that the hysteretic model affects the stability region of the system. (C) 2018 Elsevier Ltd. All rights reserved.
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页码：222 / 233
页数：12
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