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Drilling Technologies for Geo-Energy Industry

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "H: Geo-Energy".

Deadline for manuscript submissions: closed (27 July 2024) | Viewed by 1547

Special Issue Editor


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Guest Editor
Mewbourne School of Petroleum and Geological Engineering, University of Oklahoma, Norman, OK 73071, USA
Interests: drilling; wellbore integrity; process safety; automation; wellbore construction technologies
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Special Issue Information

Dear Colleagues,

The increase in the world’s energy demands cannot be supported without drilling into the most complex areas. Whether we drill for oil, gas, geothermal energy, gas hydrates, or CCS, we need to make sure that the process is safe and the product meets targets. This can only be achieved through continuous and innovative drilling technologies, efficient construction, and dedicated materials. Drilling has dramatically changed in the last 10 years through intensive and innovative technology, both in terms of hardware and software, becoming safer, faster, and more reliable than ever.

This Special Issue covers technological advances and innovations related to drilling operations for geo-energy. The design and operation of drilling systems is a major aspect of the geo-energy industry and is very cost-effective. Therefore, I invite you to submit your original works to this Special Issue.

Dr. Catalin Teodoriu
Guest Editor

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Published Papers (1 paper)

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Research

18 pages, 3950 KiB  
Article
Investigation and Analysis of Influential Parameters in Bottomhole Stick–Slip Calculation during Vertical Drilling Operations
by Chinedu Ejike, Immanuel Frimpong Obuobi, Simon Avinu, Khizar Abid and Catalin Teodoriu
Energies 2024, 17(3), 622; https://doi.org/10.3390/en17030622 - 27 Jan 2024
Cited by 2 | Viewed by 1119
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 [...] Read more.
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. Full article
(This article belongs to the Special Issue Drilling Technologies for Geo-Energy Industry)
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