Vibration analysis of the fully coupled nonlinear finite element model of composite drill strings

Mohammadzadeh, Maziar; Shahgholi, Majid; Arbabtafti, Mohammadreza; Yang, Jianming

doi:10.1007/s00419-020-01673-8

Cited by 10 publications

(5 citation statements)

References 27 publications

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“…The lateral stiffness of drill strings varies when they are subjected to high axial loads, this phenomenon is called the geometric stiffening effect [22,27], the strain energy due to geometric stiffening effect is denoted by Ugs:…”

Section: Strain Energy Of the Composite Drill Stringmentioning

confidence: 99%

“…The composite drill strings can be designed to meet specific requirements for specific applications, e.g. flexible enough to resist bending fatigue, but strong enough to carry high tensional and torsional loads, particularly in the ultra-deep directional drilling or the short radius directional drilling [20][21][22].…”

Section: Introduction1mentioning

confidence: 99%

“…Mohammadzadeh et al [22] furnished a basic fully coupled non-linear model of composite drill strings for the further development of a more comprehensive model. The approach presented on that work [22] has been adapted in recent study and has been extended to accommodate the important case of non-linear axial vibrations considering bit (RC/PDC)-rock interaction.…”

Section: Introduction1mentioning

confidence: 99%

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Non-linear Axial Vibrations of Composite Drill Strings Considering Interaction of Roller Cone Bit and Polycrystalline Diamond Compact Bit with Rock

Mohammadzadeh

Arbabtafti

Shahgholi

et al. 2021

IJE

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Due to the world increasing energy demands, optimizing the drilling system parameters such as the weight on bit (WOB), and the structure of drill string and bit, also vibrations and dynamic behavior of drill strings are of significant interest to researchers and energy industries. Specially, to overcome limitations of drilling operations in oil and gas industry, composite drill strings as high-tech devices are under development. In this research, the fully coupled non-linear axial vibrations of composite drill strings due to the interaction of two common bits namely; Roller Cone (RC) and Polycrystalline Diamond Compact (PDC) with rock, considering the major non-linear terms, the drill string-wellbore contact, the different weight on bit (WOB) and the different composite configurations using the finite element method (FEM) and the Lagrangian approach were studied. This study proved that the different configurations of composite drill strings showed specific dynamic behavior at different conditions. Therefore, composite drill string can be designed for particular purposes. Also, the results imply the remarkable effects of weight on bit (WOB) and type of bits on the axial vibrations of composite drill strings.

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Section: Strain Energy Of the Composite Drill Stringmentioning

confidence: 99%

Section: Introduction1mentioning

confidence: 99%

Section: Introduction1mentioning

confidence: 99%

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Non-linear Axial Vibrations of Composite Drill Strings Considering Interaction of Roller Cone Bit and Polycrystalline Diamond Compact Bit with Rock

Mohammadzadeh

Arbabtafti

Shahgholi

et al. 2021

IJE

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“…State-dependent time delays were introduced during the cutting process to couple the axial and torsional motions of the bit. Mohammadzadeh Maziar et al studied the fully coupled nonlinear vibrations drill string, which is a composite drill string consisting of orthogonal anisotropic layers, using the Lagrange method and finite element methods and investigated the analytical capability of the dynamic model [15]. Then, they also studied the ability of the composite drill string, with different configurations, to track and transmit the fully coupled nonlinear vibration [16].…”

Section: Introductionmentioning

confidence: 99%

A Nonlinear Dynamic Model for Characterizing the Downhole Motions of the Sidetracking Tool in a Multilateral Well

et al. 2023

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It is of practical interest to investigate the mechanical behaviors of a sidetracking tool system and to describe the sidetracking tool’s vibration mechanical response, as this can provide an important basis for evaluating and optimizing the tool structure and effectively controlling the profile of the sidetracking window. In this article, three nonlinear dynamic models with ten, six, and two degrees of freedom, respectively, are established using the Lagrange method to characterize the behavior of the sidetracking tool. It should be noted that in these models, the axial, lateral, and torsional vibration of the tool system are fully coupled. The process of the sidetracking tool mills in the casing-pipe wall is divide into three typical stages, i.e., the window mill, pilot mill, and watermelon mill grinding the casing, respectively. The dynamic response of the three stages is studied to more effectively analyze the influence of the sidetracking tool vibration deformation on the window width. The Runge–Kutta method, which is easy to implement, is applied to solve the supposed nonlinear dynamic model, and some useful findings are as follows. The effects of sidetracking tool vibrations at different stages on window widening size are illustrated quantitatively. The vibration trajectory pattern of the sidetracking tool is different from that of the conventional drilling tool due to the influence of the whipstock, which changes from the general whirling motion pattern to the X reciprocating pattern, and the vibration amplitude decreases. Due to the influence of the tool’s lateral amplitude, the window profile is widened. The widened window size of the window mill and the pilot mill are 3.30 mm and 2.74 mm, respectively, and the extended window size of the watermelon mill is 0.07 mm, while the maximum window width formed by the sidetracking tool is 374.34 mm. This work proposes, for the first time, the coupled vibration model of the sidetracking tool system, which is helpful to better understand the nonlinear dynamic effects of the sidetracking tool, laying the foundation for the optimization of the sidetracking parameters.

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“…The drillstring transverse vibration laws were studied quantitatively under different rotary speeds and weight on bit (WOB). Mohammadzadeh et al (2020) proposed fully coupled nonlinear vibration of composite drillstrings, which consisted of orthotropic layers. Fully coupled nonlinear vibrations and modal analysis of the composite drillstrings due to various fiber orientations and stacking sequences in different drilling conditions were studied.…”

Section: Introductionmentioning

confidence: 99%

Stability of transverse vibration of drillstring conveying drilling fluid

Tang¹,

Zheng²,

Zhao³

2020

Journal of Theoretical and Applied Mechanics

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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 stability of the drillstring is discussed. It is found that the interaction between the drillstring and drilling mud has a great influence on drillstring buckling and dynamics. For constant drilling pressure, the mud flow rate stabilizes the drillstring under certain conditions, but the fluctuating WOB drives the drillstring parametric resonance.

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Vibration analysis of the fully coupled nonlinear finite element model of composite drill strings

Cited by 10 publications

References 27 publications

Non-linear Axial Vibrations of Composite Drill Strings Considering Interaction of Roller Cone Bit and Polycrystalline Diamond Compact Bit with Rock

Non-linear Axial Vibrations of Composite Drill Strings Considering Interaction of Roller Cone Bit and Polycrystalline Diamond Compact Bit with Rock

A Nonlinear Dynamic Model for Characterizing the Downhole Motions of the Sidetracking Tool in a Multilateral Well

Stability of transverse vibration of drillstring conveying drilling fluid

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