Dynamic Model and Quantitative Analysis of Stick-Slip Vibration in Horizontal Well

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. The drillstring-borehole impact and friction, fluid-structure interaction, bit-rock interaction, and gravity ar...

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Main Authors: Baojin Wang, Zhongyang Wang, Fushen Ren
Format: Article
Language:English
Published: Wiley 2020-01-01
Series:Shock and Vibration
Online Access:http://dx.doi.org/10.1155/2020/8831111
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author Baojin Wang
Zhongyang Wang
Fushen Ren
author_facet Baojin Wang
Zhongyang Wang
Fushen Ren
author_sort Baojin Wang
collection DOAJ
description 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. The drillstring-borehole impact and friction, fluid-structure interaction, bit-rock interaction, and gravity are considered in this model. The influence of axial and torsional excitation on stick-slip is analyzed. The nonlinear motion predicted by the model is consistent with the observation results in the experiments. The research shows that the fluctuation amplitude of the bit angular velocity also increases along with the increase of driving angular velocity (torsional excitation). However, both the ratio of the maximum angular velocity of the stick-slip vibration and the fluctuation of the angular velocity are continuously reduced. Meanwhile, the strength of the stick-slip vibration has a tendency to slow down. As the axial load (axial excitation) increases, the fluctuation of the maximum angular speed of the stick-slip vibration does not change significantly, but the smaller load causes a smaller stick duration.
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institution Kabale University
issn 1070-9622
1875-9203
language English
publishDate 2020-01-01
publisher Wiley
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series Shock and Vibration
spelling doaj-art-35506b9c15f94002adbfb34cc8aafa112025-02-03T01:00:08ZengWileyShock and Vibration1070-96221875-92032020-01-01202010.1155/2020/88311118831111Dynamic Model and Quantitative Analysis of Stick-Slip Vibration in Horizontal WellBaojin Wang0Zhongyang Wang1Fushen Ren2Department Mechanical Science and Engineering, Northeast Petroleum University, Daqing, ChinaDepartment Mechanical Science and Engineering, Northeast Petroleum University, Daqing, ChinaDepartment Mechanical Science and Engineering, Northeast Petroleum University, Daqing, ChinaStick-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. The drillstring-borehole impact and friction, fluid-structure interaction, bit-rock interaction, and gravity are considered in this model. The influence of axial and torsional excitation on stick-slip is analyzed. The nonlinear motion predicted by the model is consistent with the observation results in the experiments. The research shows that the fluctuation amplitude of the bit angular velocity also increases along with the increase of driving angular velocity (torsional excitation). However, both the ratio of the maximum angular velocity of the stick-slip vibration and the fluctuation of the angular velocity are continuously reduced. Meanwhile, the strength of the stick-slip vibration has a tendency to slow down. As the axial load (axial excitation) increases, the fluctuation of the maximum angular speed of the stick-slip vibration does not change significantly, but the smaller load causes a smaller stick duration.http://dx.doi.org/10.1155/2020/8831111
spellingShingle Baojin Wang
Zhongyang Wang
Fushen Ren
Dynamic Model and Quantitative Analysis of Stick-Slip Vibration in Horizontal Well
Shock and Vibration
title Dynamic Model and Quantitative Analysis of Stick-Slip Vibration in Horizontal Well
title_full Dynamic Model and Quantitative Analysis of Stick-Slip Vibration in Horizontal Well
title_fullStr Dynamic Model and Quantitative Analysis of Stick-Slip Vibration in Horizontal Well
title_full_unstemmed Dynamic Model and Quantitative Analysis of Stick-Slip Vibration in Horizontal Well
title_short Dynamic Model and Quantitative Analysis of Stick-Slip Vibration in Horizontal Well
title_sort dynamic model and quantitative analysis of stick slip vibration in horizontal well
url http://dx.doi.org/10.1155/2020/8831111
work_keys_str_mv AT baojinwang dynamicmodelandquantitativeanalysisofstickslipvibrationinhorizontalwell
AT zhongyangwang dynamicmodelandquantitativeanalysisofstickslipvibrationinhorizontalwell
AT fushenren dynamicmodelandquantitativeanalysisofstickslipvibrationinhorizontalwell