Results 1 to 10 of about 1,042 (124)
Detecting downhole vibrations through drilling horizontal sections: machine learning study [PDF]
Scientific Reports, 2023 During the drilling operations and because of the harsh downhole drilling environment, the drill string suffered from downhole vibrations that affect the drilling operation and equipment.
Ramy Saadeldin +2 more
doaj +2 more sources
Stick–slip vibrations in oil well drillstring: A review
Journal of Low Frequency Noise Vibration and Active Control, 2020 A survey of the literature related to theoretical and experimental studies on stick–slip vibration in oilwell drillstring is carried out in this study. It aims to explain key concepts and present the existing methods for studying this phenomenon.
Liping Tang +2 more
exaly +2 more sources
Laboratory-Scale Drillstring Vibration Analysis
MiningDrillstring vibrations are detrimental to drill bits and downhole equipment, affecting drilling efficiency and operational cost in severe drillstring vibration cases.
Eshan K. Maitra +1 more
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Asymptotic Stabilization of Oilwell Drillstring Torsional and Axial Vibrations
MathematicsThis paper takes as its starting point the distributed parameter models for both torsional and axial vibrations of the oilwell drillstring. While integrating several accepted features, the considered models are deduced following the Hamilton variational ...
Daniela Danciu, Vladimir Răsvan
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Drillstring Vibrations - Identification, Classification and Mitigation [PDF]
, 2020 Denne masteroppgaven bygger på arbeidet fra prosjektoppgaven i faget TPG4560. Noen deler er tatt direkte fra prosjektoppgaven, kalt «Drillstring Vibrations: A Theoretical Foundation». Masteroppgaven var skrevet i samarbeid med Aker BP, et operatørselskap
Berntsen, Mads
core +2 more sources
Drillstring Oscillations: The Influence of Fluid Loading and Stabilizer Effects
Shock and Vibration, 2021 Drillstring vibrations can be undesirable for drilling operations. Here, attention is focused on vibrations of the upper portion of a drillstring as these vibrations can cause drillpipe wear and casing wear.
Yongsheng Liu +4 more
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Drillstring Failure: Analytical and Experimental Approach [PDF]
MATEC Web of Conferences, 2019 Drilling is one of the costliest activities in oil and gas industry due to the complexity of interactions with downhole rock formation. Under such conditions, the uncertainty of drillstring behaviour increase and hence it becomes difficult to predict the
Hassan Edris +3 more
doaj +1 more source
Shock and Vibration, 2021 High-frequency measurements can provide much more new insights for drillstring dynamics compared to traditional instruments, leading to a new realm of understanding of drillstring behaviors in great detail than before.
Lixin Li +6 more
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Fractional-order controllers for stick-slip vibration mitigation in oil well drill-strings
Journal of Low Frequency Noise, Vibration and Active Control, 2021 Drillstring–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.
Massinissa Derbal +4 more
doaj +1 more source
IEEE Access, 2023 A detailed methodology to develop a digital twin has many useful applications in the era of technology 4.0. This study provides a framework to develop a digital twin for vibration prediction and fatigue life prognosis of a vertical oil well drillstring ...
Mihiran Galagedarage Don, Geoff Rideout
doaj +1 more source