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
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Experimental study and dynamic characteristics analysis of partially liquid-filled annulus tubes. [PDF]
PLoS ONE, 2018 As a useful technology, the horizontal drilling for underground coalmine has been applied in many fields such as gas drainage, water control, exploration and accurate drilling borehole engineering.
Hongyuan Sun, Ao Zhang, He Li
doaj +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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Investigating Drillstring Vibration and Stability in Coring Drilling
Energies, 2022 Transverse vibration of drillpipe in coring drilling is undesirable. Here, the influence of the core on drillpipe vibration is considered for the first time.
Yuchen Sun +5 more
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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 +4 more
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On the formation of limit cycle of the friction-induced stick-slip vibration in oilwell drillstring
Petroleum, 2015 In this paper, the stick-slip vibration in oilwell drillstring is studied. The drilling system is modelled as a lumped-parameter torsional pendulum and the interaction between the drill bit and the rock is treated as Coulomb friction.
Xiaohua Zhu, Liping Tang
doaj +3 more sources
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
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Analysis on the lateral vibration of drill string by mass effect of drilling fluid [PDF]
Mechanical Sciences, 2019 It is well known that the influence of the internal and external drilling fluid on the lateral vibration characteristics of drillstring cannot be ignored. In this paper, experiment apparatus for simulating drillstring vibration was established. Hammering
C. Yang +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
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Use of the energy of parametric oscillations to improve drilling indices [PDF]
, 2011 Purpose. Increase of the efficiency of using energy of parametric oscillations within the assembly of drilling string bottom by means of solving nonlinear-parametric equations of a “bit – drive motor – drilled-out rock” system to improve drilling indices.
Bakenov +11 more
core +2 more sources