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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
Dynamic Reliability Analysis of Rotary Steering Drilling System [PDF]
Mechanical Sciences, 2019 Vibration and high shock are major factors in the failure of downhole tools. It is important to study the causes of vibration and shock formation to prevent failure of the drillstring and bottom hole assembly (BHA). At present, it is generally recognized
L. Huang +9 more
doaj +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
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
Investigation of drillstring vibration reduction tools [PDF]
, 2012 Drilling related problems such as drillstring vibration is an important cause of premature failure of drillstring components and drilling inefficiency. The vibration of drillstring interferes with measurement collected while drilling.
Al Dushaishi, Mohammed Fayez
core +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
Dynamic stability of a stepped drillstring conveying drilling fluid [PDF]
, 2017 Taking into account differences between a drill pipe (DP) and a drill collar (DC), the drillstring in a vertical well is modeled as a stepped pipe conveying a drilling fluid downwards to the bottom inside the string and then upwards to the ground from ...
Tang, S. +7 more
core +1 more source
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
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 5, May 2025.Abstract Obtaining in situ samples from active subduction systems is critical for assessing the material properties and geological evolution of rocks and sediments that host plate boundary deformation, and advancing our understanding of the processes that lead to fault locking and rupture.
P. H. Cornard +8 more
wiley +1 more source
An efficient model of drillstring dynamics [PDF]
Journal of Sound and Vibration, 2015 Abstract High amplitude vibration regimes can cause significant damage to oilwell drillstrings: torsional stick–slip oscillation, forward whirl and backward whirl are each associated with different kinds of damage. There is a need for models of drillstring dynamics that can predict this variety of phenomena that are: efficient enough to carry out ...
T. Butlin, R.S. Langley
openaire +1 more source