Dynamics characteristics of axial–torsional–lateral drill string system under wellbore constraints

Fang, Pan; Ding, Shujie; Yang, Kang; Li, Gao; Xiao, D.

doi:10.1016/j.ijnonlinmec.2022.104176

Cited by 8 publications

(2 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…But the most crucial lock-in region is still dominated by vortexinduced vibration. It should be emphasized that in the lock-in region, i.e., the reduced velocity range of [4,7], the backward whirling frequency of the riser does not strictly follow the rule Ω bw = −Ω 0 R or /R 0 . Instead, it superimposes an additional frequency that is similar to the variation trend of the riser's maximum amplitude.…”

Section: The Influence Of Gap Ratio On Vortex-induced Vibrations Of T...mentioning

confidence: 99%

“…In the field of drilling, researchers often focus on studying various motion phenomena of drill strings, such as stick-slip vibrations, whirl motions, and collisions, by reducing the degrees of freedom (DOFs) of the drill string [7][8][9][10][11]. Liu et al [12] proposed an 8 DOFs reducedorder drill string model considering variable time delays and nonsmooth effects, observing that time delays and nonsmooth interactions caused multiple stick-slip and whirl motions, as well as collision phenomena.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Nonlinear coupled motions of a pipe-in-pipe system experiencing vortex-induced vibrations

Hou,

Long,

Meng

et al. 2024

Nonlinear Dyn

View full text Add to dashboard Cite

This paper delves into the dynamics of the pipe-in-pipe system, crucial in offshore oil and gas exploration, featuring an inner drill string nestled within an outer riser. A reduced-order model with five degrees of freedom is proposed to capture the coupled dynamics of this system. Here, the inner drill string is depicted as a torsional-lateral coupled rotor constrained by the outer riser. In contrast, the outer riser is modeled as a suspended stator subjected to vortex-induced excitations and contact forces. The model incorporates nonlinearities, including dry frictions, collisions, loss of contact, and nonlinear damping through the van der Pol wake oscillator. This comprehensive model allows an indepth exploration of the dynamics of the coupled pipein-pipe system. Parametric analysis is conducted based on the non-dimensional numerical model, revealing a novel and stable whirling phenomenon termed "follower whirling" at low rotary speeds of the drill string. During this stable follower whirling, the riser's vortex-induced vibration traces an "8"-shaped trajectory, while the

show abstract

Section: The Influence Of Gap Ratio On Vortex-induced Vibrations Of T...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Nonlinear coupled motions of a pipe-in-pipe system experiencing vortex-induced vibrations

Hou,

Long,

Meng

et al. 2024

Nonlinear Dyn

View full text Add to dashboard Cite

show abstract

Anomaly Detection and Alarm Limit Design for In-Hole Bit Bounce Based on Interval Augmented Mahalanobis Distance

Hu,

Zhang

et al. 2023

Communications in Computer and Information Science

View full text Add to dashboard Cite

Experimental and numerical investigation on the relationship between stick–slip vibration and rate of penetration

Huang,

Ni,

Zhang

et al. 2024

Nonlinear Dyn

View full text Add to dashboard Cite

Dynamics characteristics of axial–torsional–lateral drill string system under wellbore constraints

Cited by 8 publications

References 39 publications

Nonlinear coupled motions of a pipe-in-pipe system experiencing vortex-induced vibrations

Nonlinear coupled motions of a pipe-in-pipe system experiencing vortex-induced vibrations

Anomaly Detection and Alarm Limit Design for In-Hole Bit Bounce Based on Interval Augmented Mahalanobis Distance

Experimental and numerical investigation on the relationship between stick–slip vibration and rate of penetration

Contact Info

Product

Resources

About