Results 11 to 20 of about 568,250 (204)
Suppression of Drill-String Stick-Slip Vibration [PDF]
MATEC Web of Conferences, 2018 We investigate experimentally and numerically suppression of drill-string torsional vibration while drilling by using a sliding mode control. The experiments are conducted on the novel experimental drilling rig developed at the University of Aberdeen [1]
Vaziri Vahid +2 more
doaj +4 more sources
System for measurement and control of drill string vibration [PDF]
Journal of Physics: Conference Series, 2021 The article discusses issues of ensuring effective and reliable measurement and control of drill string vibration. A system for active measurement and control of drill string vibration is presented.
Богачев, В. В. +4 more
core +4 more sources
Inverse problems in drill-string torsional vibration [PDF]
, 2021 In this study, a method is developed to better model drill-string torsional vibration by using data to calibrate a Partial Differential Equation (PDE) based model.
Alrasheed, Abdulmalik
core +3 more sources
Effect Of Drill String Rotation On The Dynamic Response Of Drilling Risers [PDF]
International Journal of Applied Mechanics and Engineering, 2015 The effect of the rotation of a drill string on the response of a drilling riser has been studied. A governing equation for the flexural response that incorporates the effect of the drill string rotation is developed from first principles, and the ...
I.E. Major, A. Big-Alabo, S. Odi-Owei
doaj +2 more sources
Mathematical Modeling and Analysis of Drill String Longitudinal Vibration with Lateral Inertia Effect [PDF]
Shock and Vibration, 2016 Comparative analysis whether considering the lateral inertia or not, aiming at the longitudinal vibration of the drill string in drilling progress, is proposed.
Jialin Tian +5 more
doaj +2 more sources
PASSIVE VIBRATION CONTROL OF PERIODIC DRILL STRING [PDF]
, 2017 In this dissertation, the stop and pass bands (i.e. the band gaps) characteristics are determined for gyroscopic systems by developing an approach which is compatible with such class of systems which is based on the concept of Bloch wave propagation in ...
Alsaffar, Yaser A.
core +3 more sources
Chaotic Vibration Analysis of the Bottom Rotating Drill String
Shock and Vibration, 2014 Drill string vibration is a widely studied topic. This paper developed a real-time measurement system near the drilling bit and extracted the lateral vibration, longitudinal vibration time series of bottom rotating drill string.
Qilong Xue +3 more
doaj +3 more sources
Measurement and Analysis of Downhole Drill String Vibration Signal
Applied Sciences, 2021 Downhole drill string vibration data can provide an effective reference for research drill string vibration during drilling. In this paper, the research group used a storage-type downhole vibration measurement equipment equipped with an orthogonal, three-
Yafeng Li +4 more
doaj +2 more sources
Stick–Slip Vibration Characteristics Study of the Drill String Based on PID Controller
Energies, 2023 In order to address the issue of drill string stick–slip vibration, which leads to drill bit wear and reduces the drilling velocity, we conducted a study on the characteristics of stick–slip vibration using a proportional-integral-derivative (PID ...
Baoyong Yan +3 more
doaj +2 more sources
Study of Radial Vibration Impact on Friction and Torque of Rotary Drill String
Shock and Vibration, 2020 During extended-reach well drilling, the torque of a rotary drill string is too large in the horizontal section, which results in the failure of the drill string.
Zifeng Li +3 more
doaj +2 more sources