Investigation and Analysis of Influential Parameters in Bottomhole Stick–Slip Calculation during Vertical Drilling Operations
Author:
Ejike Chinedu1, Obuobi Immanuel Frimpong1, Avinu Simon1, Abid Khizar1, Teodoriu Catalin1ORCID
Affiliation:
1. Mewbourne School of Petroleum and Geological Engineering, University of Oklahoma, Norman, OK 73019, USA
Abstract
The critical factors that affect bottomhole stick–slip vibrations during vertical drilling operations are thoroughly investigated and analyzed in this research. Influential factors, such as rotation speed, weight on bit (WOB), bottom hole assembly (BHA) configuration, and formation properties, were studied in order to understand their part in the stick–slip phenomena. The analysis is based on a thorough review of previous research conducted on stick–slip drilling vibrations. A mathematical model was created that not only explains axial vibrations but also includes the torsional vibrations present in stick–slip occurrences, which helps with understanding the stick–slip phenomena better. This model can be used as an analytical tool to predict and evaluate the behavior of drilling systems under various operational circumstances. Furthermore, two drilling tests using a WellScan simulator were performed to validate the research findings and assess mitigation techniques’ viability. These test scenarios reflect the stick–slip vibration-producing situations, allowing us to test mitigation strategies. The finding of this study shows the effectiveness of two tactics for reducing stick–slip vibrations. First was the reduction of WOB, which successfully lowered the occurrence of stick–slip vibrations. The second was the increase in the rotation speed, which helped to control the stick–slip problem and increased the drilling speed. This study explains the complex dynamics of stick–slip vibrations during vertical drilling and offers practical, tried-and-true methods for reducing their adverse effects on drilling operations.
Funder
Helmerich and Payne INC.
Subject
Energy (miscellaneous),Energy Engineering and Power Technology,Renewable Energy, Sustainability and the Environment,Electrical and Electronic Engineering,Control and Optimization,Engineering (miscellaneous),Building and Construction
Reference44 articles.
1. A Literature Review of Approaches for Stick-Slip Vibration Suppression in Oilwell Drillstring;Zhu;Adv. Mech. Eng.,2014 2. Ahmad, Z., Azreen, J., Bramanta, S., Heru, H., Abdul, F., and Halim, A. (2011, January 20–22). Stick Slip Mitigation Plan to Improve Drilling. Proceedings of the SPE Asia Pacific Oil and Gas Conference and Exhibition, Jakarta, Indonesia. 3. Observer-Based H∞ Controller Design for High Frequency Stick-Slip Vibrations Mitigation in Drill-String of Rotary Drilling Systems;Riane;Vibration,2022 4. Li, W., Huang, G., Ni, H., Yu, F., and Jiang, W. (2020). Modeling and Experimental Study on Motion States of Laboratory-Scale Bottom Hole Assembly in Horizontal Wells. Energies, 13. 5. Jia, B.-X., Gao, Z.-X., Han, X.-H., Jin, J.-X., and Zhang, J.-J. (2020). Experimental analysis of the stick-slip characteristics of faults at different loading rates. PLoS ONE, 15.
|
|