Hybrid Backstepping Sliding Mode Controller for Stick–slip Vibrations Mitigation in Rotary Drilling Systems

Mendil, Chafiaa; Kidouche, Madjid; Doghmane, Mohamed Zinelabidine

doi:10.1080/03772063.2021.1919217

Cited by 12 publications

(5 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is aimed to compare the three rock-bit contact models used for the same case study; the performance of the models are summarized in Table 3 which represents the severity of torsional vibrations (existence of the stick phase, tool speed greater than top drive speed) which is represented in Figure 10a for the simple model and Figure 11b for the general model, and Figure 13b for the Stribeck model. From the results summarized in Table 3, it can be concluded that the model which shows the vibrations is the Stribeck model because during torsional vibrations the two phases (the stick phase and the slip phase) have appreared, where the first lasts for two seconds (the tool stops completely), and the second, the maximum speed of the tool exceeds two times the top drive speed, where the difference is up to 180, and these performances are almost identical to dynamic of real cases obtained from BlackBox (Mendil et al, 2021c).…”

Section: Comparative Studysupporting

confidence: 57%

“…3.2 Stick-slip vibration detection 3.2.1 At the surface. The appearance of stick-slip vibration can be followed by some signs that can be detected at the surface, for example, an increased and irregular surface torque at the top drive stall, management problems and loss of tools and an inconsistently ROP deduction (Mendil et al, 2021c).…”

Section: Torsional Harmonic In Well-amentioning

confidence: 99%

“…3.2.2 Downhole. In the borehole, the indicators of this type of vibrations are: increased torsional vibrations of the MWD (measurement while drilling) tool if there is any, the number of turns of the collar becomes greater than that of the surface, and intermittent transmission or loss of MWD signal and downhole data (Mendil et al, 2021c).…”

Section: Torsional Harmonic In Well-amentioning

confidence: 99%

“…(4) Optimize drilling parameters-WOB, rpm, flow rate-for vibration prevention/ reduction and ROP (Mendil et al, 2021c).…”

Section: Vibration Preventionmentioning

confidence: 99%

See 3 more Smart Citations

Rock–bit interaction effects on high-frequency stick-slip vibration severity in rotary drilling systems

Mendil

Kidouche

Doghmane

et al. 2021

MMMS

View full text Add to dashboard Cite

PurposeThe drill string vibrations can create harmful effects on drilling performance because they generate the stick-slip phenomenon which reduces the quality of drilling and decreases the penetration rate and may affect the robustness of the designed controller. For this reason, it is necessary to carefully test the different rock-bit contact models and analyze their influences on system stability in order to mitigate the vibrations. The purpose of this paper is to investigate the effects of rock-bit interaction on high-frequency stick-slip vibration severity in rotary drilling systems.Design/methodology/approachThe main objective of this study is an overview of the influence of the rock-bit interaction models on the bit dynamics. A total of three models have been considered, and the drilling parameters have been varied in order to study the reliability of the models. Moreover, a comparison between these models has allowed the determination of the most reliable function for stick-slip phenomenon.FindingsThe torsional model with three degrees of freedom has been considered in order to highlight the effectiveness of the comparative study. Based on the obtained results, it has been concluded that the rock-bit interaction model has big influences on the response of the rotary drilling system. Therefore, it is recommended to consider the results of this study in order to design and implement a robust control system to mitigate harmful vibrations; the practical implementation of this model can be advantageous in designing a smart rotary drilling system.Originality/valueMany rock-bit functions have been proposed in the literature, but no study has been dedicated to compare them; this is the main contribution of this study. Moreover, a case study of harmonic torsional vibrations analysis has been carried out in well-A, which is located in an Algerian hydrocarbons field, the indices of vibrations detection are given with their preventions.

show abstract

Section: Comparative Studysupporting

confidence: 57%

Section: Torsional Harmonic In Well-amentioning

confidence: 99%

Section: Torsional Harmonic In Well-amentioning

confidence: 99%

“…(4) Optimize drilling parameters-WOB, rpm, flow rate-for vibration prevention/ reduction and ROP (Mendil et al, 2021c).…”

Section: Vibration Preventionmentioning

confidence: 99%

See 2 more Smart Citations

Rock–bit interaction effects on high-frequency stick-slip vibration severity in rotary drilling systems

Mendil

Kidouche

Doghmane

et al. 2021

MMMS

View full text Add to dashboard Cite

show abstract

“…However, it necessitates a direct measurement of the drill bit velocity [7], which is not possible if the measurement while drilling (MWD) tool is not logged. From an academic point of view, several papers have been published about different control strategies for stick-slip vibrations mitigation in the drill-string [8,9], most of which have used a two degrees of freedom model of the rotary drilling system in the controller design [10][11][12][13][14]. This model has proven to be simple, practical, and sufficient, but only if the supposition given by [15], which indicates that stick-slip occurs at low frequencies, is verified.…”

Section: Introductionmentioning

confidence: 99%

Observer-Based H∞ Controller Design for High Frequency Stick-Slip Vibrations Mitigation in Drill-String of Rotary Drilling Systems

et al. 2022

Self Cite

View full text Add to dashboard Cite

The drilling process is among the most crucial steps in exploration and production activities in the petroleum industry. It consists of using mechanical mechanisms to crush rocks by the drill bit to pass through the different geological layers. The drill-string continuously transforms the rotational movement from the top drive motor to the drill bit through the drill pipes. Due to the strong interactions with the rocks, aggressive vibrations can arise in the drill-string in its three dimensions, and consequently, this may create three types of synchronous vibrations: axial, lateral, and torsional. The severe status of the latter is known as the stick-slip phenomenon, and is the most common in rotary drilling systems. Based on field observations, it has been inferred that the high frequency stick-slip vibrations may lead to drill-string fatigues and even to premature rupture. In the best case, it reduces the drilling efficiency by decreasing the rate of penetration, due to which the drilling operations become proportionally expensive. The main novelties of this research work are the design of an H∞ observer-based controller to mitigate the high frequency stick-slip vibrations, and the quantitative analysis of the vibrations’ severity for ten degrees of freedom model. The observer is designed to estimate the non-measurable rotational velocity of the drill bit due to the severity of the vibrations, while the controller is dedicated to suppressing the vibrations by using the top drive inputs. Thus, many scenarios have been considered to test and analyze the observer performance and the controller robustness. Furthermore, a comparison with the LQG observer-based controller has been conducted, where H∞ has demonstrated better efficiency in suppressing the stick-slip vibrations under unstructured perturbations.

show abstract

Sliding Mode Controller Design for Torsional Vibrations Minimization Under Rock-Bit Interaction Effects

Mendil

Kidouche

Doghmane

2021

Lecture Notes in Networks and Systems

View full text Add to dashboard Cite

Hybrid Backstepping Sliding Mode Controller for Stick–slip Vibrations Mitigation in Rotary Drilling Systems

Cited by 12 publications

References 18 publications

Rock–bit interaction effects on high-frequency stick-slip vibration severity in rotary drilling systems

Rock–bit interaction effects on high-frequency stick-slip vibration severity in rotary drilling systems

Observer-Based H∞ Controller Design for High Frequency Stick-Slip Vibrations Mitigation in Drill-String of Rotary Drilling Systems

Sliding Mode Controller Design for Torsional Vibrations Minimization Under Rock-Bit Interaction Effects

Contact Info

Product

Resources

About