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AuthorDerbal, Massinissa
AuthorGharib, Mohamed
AuthorRefaat, Shady S.
AuthorPalazzolo, Alan
AuthorSassi, Sadok
Available date2023-11-30T11:41:49Z
Publication Date2021-01-11
Publication NameJournal of Low Frequency Noise Vibration and Active Control
Identifierhttp://dx.doi.org/10.1177/1461348420984040
CitationDerbal, M., Gharib, M., Refaat, S. S., Palazzolo, A., & Sassi, S. (2021). Fractional-order controllers for stick-slip vibration mitigation in oil well drill-strings. Journal of Low Frequency Noise, Vibration and Active Control, 40(3), 1571-1584.
ISSN1461-3484
URIhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85099353896&origin=inward
URIhttp://hdl.handle.net/10576/49880
AbstractDrillstring–borehole interaction can produce severely damaging vibrations. An example is stick–slip vibration, which negatively affects drilling performance, tool integrity and completion time, and costs. Attempts to mitigate stick–slip vibration typically use passive means and/or change the operation parameters, such as weight on bit and rotational speed. Automating the latter approach, by means of feedback control, holds the promise of quicker and more effective mitigation. The present work presents three separate fractional-order controllers for mitigating drillstring slip–stick vibrations. For the sake of illustration, the drillstring is represented by a torsional vibration lumped parameter model with four degrees of freedom, including parameter uncertainty. The robustness of these fractional-order controllers is compared with traditional proportional-integral-derivative controllers under variation of the weight on bit and the drill bit’s desired rotary speed. The results confirm the proposed controllers effectiveness and feasibility, with rapid time response and less overshoot than conventional proportional-integral-derivative controllers.
SponsorThis publication was made possible by an NPRP grant (NPRP10-0101–170081) from the Qatar National Research Fund (a member of Qatar Foundation).
Languageen
PublisherSAGE
SubjectDrillstring dynamics
fractional-order control
mathematical modeling
stick–slip
torsional vibration
TitleFractional-order controllers for stick-slip vibration mitigation in oil well drill-strings
TypeArticle
Pagination1571-1584
Issue Number3
Volume Number40
ESSN2048-4046
dc.accessType Open Access


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