Results 31 to 40 of about 985,018 (255)
Lubricants, 2022 In this study, we discussed the occurrence condition stick-slip model based on a 2DOF system, in which a 1DOF system model commonly used in stick-slip analysis was attached on an elastic foundation.
Satoru Maegawa +2 more
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Study on Active Control of Stick-slip Vibration of Drill String System
Academic Journal of Engineering and Technology Science, 2023 : The stick-slip vibration phenomenon of drill string widely exists in the drilling process, which has a great negative impact on drilling equipment, efficiency, cost and safety.
Jie Luo, Jun Liu, Qiang Li
semanticscholar +1 more source
Dynamic Model and Quantitative Analysis of Stick-Slip Vibration in Horizontal Well
Shock and Vibration, 2020 Stick-slip is very harmful to the service life of drillstring. The extended Hamilton principle is applied in the paper. Then, finite element method (FEM) is employed to describe the model.
Baojin Wang, Zhongyang Wang, Fushen Ren
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A Literature Review of Approaches for Stick-Slip Vibration Suppression in Oilwell Drillstring
Advances in Mechanical Engineering, 2014 Stick-slip vibration presents one of the main problems in the quality of drilling performance limiting tool life and productivity. This type of vibration can be suppressed by means of many approaches, such as varying parameters and use of control tools ...
Xiaohua Zhu, Liping Tang, Qiming Yang
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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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Vibration and Control Characteristics of Downhole Drill String System
Shiyou jixie, 2022 Stick slip vibration seriously affects the life of drill string system,prolongs the drilling cycle,and endangers the safety of staff.In order to solve the problem of stick slip vibration caused by linear torque load and friction load in drilling ...
Ma Sunan +6 more
doaj
A Study of Effect of Various Normal Force Loading Forms on Frictional Stick-Slip Vibration
Journal of Dynamics Monitoring and Diagnostics, 2021 In this work, a comparative study is performed to investigate the influence of time-varying normal forces on the friction properties and friction-induced stick-slip vibration by experimental and theoretical methods.
Xiaocui Wang +4 more
semanticscholar +1 more source
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 +1 more source
Intelligent identification method for stick-slip vibration based on downhole data
Thermal ScienceThe stick-slip vibration problem in downhole drilling has become prominent, seriously affecting production efficiency and equipment safety. Therefore, this study proposes an intelligent stick-slip vibration recognition method based on downhole data ...
Wei Liu +8 more
semanticscholar +1 more source
Advanced Engineering Materials, EarlyView.Dislocation cutting of γ′ precipitates in Ni‐based superalloys is investigated by linking atomistic simulations with discrete dislocation dynamics. The critical cutting stress is shown to be governed by the antiphase boundary energy, while line tension effects promote edge‐preferred cutting.
Frédéric Houllé +9 more
wiley +1 more source