A torque estimator-based control strategy for oil-well drill-string torsional vibrations active damping including an auto-tuning algorithm

Pavković, Danijel and Deur, Joško and Lisac, Anton (2011) A torque estimator-based control strategy for oil-well drill-string torsional vibrations active damping including an auto-tuning algorithm. = A torque estimator-based control strategy for oil-well drill-string torsional vibrations active damping including an auto-tuning algorithm. Control Engineering Practice, 19 (8). pp. 836-850. ISSN 0967-0661. Vrsta rada: ["eprint_fieldopt_article_type_article" not defined]. Kvartili JCR: Q2 (2011). Točan broj autora: 3.

Text Pavković, Danijel_A torque estimator-based control strategy for oil-well drill-string torsional vibrations active damping including an auto-tuning algorithm.pdf - Published Version Restricted to IP adress Jezik dokumenta:English Download (1MB)

Abstract

Considerable compliance of the lengthy oil-well drill string combined with low tool inertia and stick-slip friction between the tool and the rock bed causes notable undesired torsional vibrations of the drill-string electrical drive. In order to attenuate the torsional vibrations and, thus, improve both the quality and the productivity of the drilling process, an automatically tuned active damping control strategy based on drill-string torque estimation is proposed in the paper. The core of the strategy includes a proportional-integral (PI) controller extended with estimator-based drill-string torque feedback loop. Furthermore, an appropriate algorithm that prevents drill-string back-spinning caused by the limited braking power of the power converter is presented. Finally, an auto-tuning algorithm is proposed, which is built around an adaptive Kalman filter-based estimator of drill-string drive natural frequencies. The drill-string control strategy is verified experimentally using a drill string hardware-in-the-loop setup under the laboratory conditions, as well as on an actual oil-drilling rig.

Item Type:	Article (["eprint_fieldopt_article_type_article" not defined])
Keywords (Croatian):	active damping; autotuning; state-control; torque estimation; torsional vibration; active filters; algorithms; damping; drills; elastic waves; estimation; frequency estimation; kalman filters; machine vibrations; oil wells; slip forming; torque; tuning; well drilling; oil well drilling
Subjects:	TECHNICAL SCIENCE
Divisions:	900 Department of Robotics and Production System Automation > 910 Chair of Engineering Automation
Indexed in Web of Science:	Yes
Indexed in Current Contents:	Yes
Quartiles:	Q2 (2011)
Date Deposited:	22 Apr 2015 11:35
Last Modified:	09 Jan 2019 09:16
URI:	http://repozitorij.fsb.hr/id/eprint/3793

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