Results 11 to 20 of about 571,068 (269)
Experimental Study on Axial Impact Mitigating Stick-Slip Vibration with a PDC Bit
Shock and Vibration, 2021 Stick-slip vibration reduces the drilling rate of penetration, causes early wear of bits, and threatens the safety of downhole tools. Therefore, it is necessary to study suppression methods of stick-slip vibration to achieve efficient and safe drilling ...
Yong Wang +7 more
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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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Shiyou jixieStick⁃slip vibration is one of the main vibration forms in the process of horizontal well drilling， and usually leads to adverse consequences such as reduction of bit cutting efficiency and failure of drilling tools.
Li Wenzhe +5 more
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On the formation of limit cycle of the friction-induced stick-slip vibration in oilwell drillstring [PDF]
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
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Investigation of Stick-Slip Vibration in a Commercial Vehicle Brake Assembly
The International Journal of Acoustics and Vibration, 2017 There are several types of disc brake instabilities associated with the brake systems; however, they are usually classified into two main categories depending on the frequency range: brake groan 0-300 Hz and brake squeal 1- 16 kHz. The groan is associated with the stick-slip motion while the squeal is associated with the modal coupling.
Ashraf, N. +2 more
openaire +3 more sources
Xibei Gongye Daxue Xuebao, 2019 In drilling field, drill-strings stick-slip vibration is a common phenomenon and may lead to a series of drilling accidents. In order to improve drilling efficiency, this paper commits to study a new control system to suppress the undesired stick-slip ...
doaj +3 more sources
Fractional-order controllers for stick-slip vibration mitigation in oil well drill-strings [PDF]
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
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Xibei Gongye Daxue Xuebao, 2019 Exploration of oil or gas wells is usually carried out by using drilling system. When the kilometers of drilling system is externally disturbed, the drilling system is prone to undesired stick-slip vibration of the drill-string.
doaj +2 more sources
Friction-induced vibration and stick-slip waves
European Journal of Computational Mechanics, 2011 This paper presents a short review and new results about the self-excited responses under the form of stick-slip regimes. First, the Van-der Pol oscillator with one degree of freedom is considered. Then it is shown that it is possible to build semi-analytical and numerical (by the FEM.) solutions of stick-slip-separation waves for a brake-like system ...
Abdelbacet Oueslati +1 more
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Stick-slip suppression and speed tuning for a drill-string system via proportional-derivative control [PDF]
, 2020 This paper studies the problems of stick-slip mitigation and speed tuning for a lumped-parameter drill-string system by using a proportional-derivative feedback controller via path-following analysis.
Y Liu (4702669) +4 more
core +6 more sources