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Drilling Technologies for Geo-Energy Industry
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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: 27 July 2024 | Viewed by 948

Special Issue Editor

Dr. Catalin Teodoriu

E-Mail Website
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
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

I have been invited to serve as Guest Editor of this Special Issue on Thermal Energy Storage (TES) in Energy Systems. This Special Issue focuses on both the component characterization and system integration of TES. Analytical, numerical, and experimental methods—mainly for medium- and high-temperature storage—can be proposed. Novel storage technologies, sizing, renewable energy integration, storage materials, heat transfer enhancement in storage devices, and cost/performance optimization are the main topics of this Special Issue.

Dr. Catalin Teodoriu
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Energies is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

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
Viewed by 654
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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