Results 31 to 40 of about 345,800 (104)
Nonlinear Dynamic Characteristic Analysis of a Landing String in Deepwater Riserless Drilling
Shock and Vibration, Volume 2018, Issue 1, 2018., 2018 The landing string is an important component of deepwater riserless drilling systems. Determination of the dynamic characteristics of the landing string plays an essential role in its design for ensuring its safe operation. In this paper, a dynamic model is developed to investigate the dynamic response characteristics of a landing string, where a ...
Jun Liu +5 more
wiley +1 more source
A multibody dynamic model of the drilling system with drilling fluid
Advances in Mechanical Engineering, 2016 This article is intended to present a multibody dynamic model of the drilling system, consisting of drillstring and drilling fluid. The drillstring is a complex rigid–flexible coupling system, including rigid bodies, Euler–Bernoulli beam elements ...
Yanhui Ma +4 more
doaj +1 more source
Self-Attenuation of Drillstring Torsional Vibrations Using Distributed Dampers [PDF]
, 2023 During drilling operations, drillstring vibrations cause many downhole dysfunctions, resulting in underperformance, equipment failure, and possibly wellbore damage. Current drillstring vibration mitigation solutions are generally located at a single site,
Cayeux, Eric +3 more
core +1 more source
Analysis of Nonlinear Vibration of Hard Coating Thin Plate by Finite Element Iteration Method
Shock and Vibration, Volume 2014, Issue 1, 2014., 2014 This paper studies nonlinear vibration mechanism of hard coating thin plate based on macroscopic vibration theory and proposes finite element iteration method (FEIM) to theoretically calculate its nature frequency and vibration response. First of all, strain dependent mechanical property of hard coating is briefly introduced and polynomial method is ...
Hui Li +3 more
wiley +1 more source
Human emotional response to steering wheel vibration in automobiles [PDF]
, 2013 This is the post-print (final draft post-refereeing) version of the final published paper that is available from the link below. Copyright @ 2013 Inderscience Enterprises Ltd.This study investigates what form of correlation may exist between measures of ...
Shabani, A +7 more
core +1 more source
Impact Force Magnitude Analysis of an Impact Pendulum Suspended in a Vibrating Structure
Shock and Vibration, Volume 19, Issue 6, Page 1359-1372, 2012., 2012 The purpose of this work is the experimental investigation and the mathematical modeling of the impact force behavior in a vibro‐impact system, where an impact pendulum is mounted on a cart that moves with a prescribed displacement. The dynamics of the system will be evaluated considering different excitation frequencies and changing the impact gap ...
R.R. Aguiar, H.I. Weber
wiley +1 more source
Effect of Drillstring Vibration Cyclic Loads on Wellbore Stability
, 2017 Wellbore instability resulted in the largest percentage of non-productive time (NPT) during drilling stage in oil industry. Wellbore instability during drilling includes: wellbore pack-off, excessive torque and drag, blowout, stuck pipe and other related
Eissa M Shokir, Mohamed Shafik Khaled
core +1 more source
Stability of transverse vibration of drillstring conveying drilling fluid [PDF]
, 2020 In this paper, an analytical model is proposed to predict lateral vibration of a drillstring in a vertical well. The effect of parameters, such as stiffness of spring, average weight on bit (WOB), amplitude of fluctuating WOB and so on, on the dynamic ...
Tang, Song +2 more
core
Downhole Wireline Mechatronics and Drillstring Vibration Dynamics [PDF]
, 2016 The work is divided into two parts: The First part discusses and documents simulation investigations on the interactive effect of the different conveyance accessories tools and their designs on the wireline cable tension force, and how it can influence ...
Abdelzaher, Omar Mohamed
core +1 more source
A New Approach for Predicting Drillstring Vibration Impact on Wellbore Stability
, 2017 Many studies attributed wellbore instability problems to physical and chemical interactions between rocks and drilling fluids; however the impact of drillstring vibration was neglected.
Mohamed Shafik Khaled
core +1 more source