Results 1 to 10 of about 81 (72)
Analysis of the Effect of Whirl on Drillstring Fatigue
Shock and Vibration, 2021 There are many kinds of vibration forms of drillstring in petroleum drilling. Whirl is one of the main vibration modes when drilling tools are drilling, and it is also the main reason of fatigue failure of the drillstring.
Chong Wang +4 more
doaj +2 more sources
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
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
doaj +2 more sources
Shock and Vibration, 2014 In the oil industry, the accompanied reverberation is a major constraint in the transmission rate and distance because the drillstring is a heterogeneous assembly.
Li Cheng +3 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
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Shock and Vibration, 2014 A new method of wireless data telemetry used by oil industry uses compressional acoustic waves to transmit downhole information from the bottom hole to the surface.
Li Cheng +4 more
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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
doaj +3 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 +4 more
doaj +2 more sources
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
Geophysical Prospecting, Volume 71, Issue 7, Page 1338-1355, September 2023., 2023 Abstract The undesired drill‐bit deviation is a source of drilling risks and requires monitoring. Seismic‐while‐drilling is one potential method to achieve this and has been tested in a number of previous studies. In August 2020 in Örebro, Sweden, we conducted an experiment to test the feasibility of seismic‐while‐drilling drill‐bit positioning and ...
Zbigniew Wilczynski +3 more
wiley +1 more source