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Advances in Oil and Gas Drilling Technologies

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

Deadline for manuscript submissions: closed (31 December 2023) | Viewed by 2096

Special Issue Editors

College of Construction Engineering, Jilin University, Changchun 130021, China
Interests: drilling fluid; wellbore stability; oil shale pyrolysis
College of Construction Engineering, Jilin University, Changchun 130021, China
Interests: percussive rotary drilling; drilling fluid; numerical simulation; intelligent drilling

Special Issue Information

Dear Colleagues,

Oil and gas energy has shaped our society, culture and profoundly affects economics as well as political aspects. The exploration of deep, unconventional oil and gas resources has become the main arena in the current energy industry, which has promoted the rapid improvement and development of drilling technology. Extensive research on the integrated automatic drilling rig, drilling tools, well logging, measurement while drilling, drilling and completion fluid, and enhanced recovery strategy et al, sheds light on addressing the problem that refers to drilling in extreme conditions and drives another booming fossil fuel era.

This Special Issue aims to present the most recent advances related to the oil and gas drilling technologies of all types of equipment, tools, materials, theories, software, and methods.

Topics of interest for publication include, but are not limited to:

  • Drilling rig and tools;
  • Drilling and completion fluid;
  • Geomechanics in drilling;
  • Drilling hydraulics;
  • Nanomaterial application in oil and gas industry;
  • Well logging, testing and evaluation;
  • Well completion methods and materials;
  • Application of artificial intelligence, machine learning and data analytics in oil and gas drilling.

Dr. Mingyi Guo
Dr. Kun Bo
Guest Editors

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.

Keywords

  • drill bit
  • drill string
  • drill pipe
  • drilling fluid
  • completion fluid
  • wellbore stability
  • drilling geomechanics
  • drilling hydraulics
  • well logging
  • intelligent drilling
  • shale gas
  • hot rock
  • hydrate gas

Published Papers (1 paper)

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Research

16 pages, 5214 KiB  
Article
Optimum Design of Large-Diameter Reverse Circulation Drill Bit for Drilling Rescue Wells Using Orthogonal Experimental Method and CFD Simulation
by Kun Bo, Fangzhou Ji, Zhiqiang Zhao, Liming Fan and Maosen Wang
Energies 2023, 16(9), 3913; https://doi.org/10.3390/en16093913 - 5 May 2023
Cited by 1 | Viewed by 1683
Abstract
Down-the-hole (DTH) hammer drilling with reverse circulation is a novel, mobile, high-speed drilling system suitable for the specific requirements of mine rescue. This technology can be applied to shorten the rescue time during mine accidents. The performance of reverse circulation (RC) drilling depends [...] Read more.
Down-the-hole (DTH) hammer drilling with reverse circulation is a novel, mobile, high-speed drilling system suitable for the specific requirements of mine rescue. This technology can be applied to shorten the rescue time during mine accidents. The performance of reverse circulation (RC) drilling depends on the structural design of the drill bit. An orthogonal experimental design is executed to investigate the effect of the structural design parameters of the large-diameter drill bit for drilling rescue wells on the cutting carrying capacity and reverse circulation performance. This study employs computational fluid dynamics (CFD) software to solve the Navier–Stokes equation for three-dimensional steady flow and calculate the flow field around the drill bit to evaluate the RC efficiency. Six key geometric parameters were proven to have a direct influence on the RC performance, including the diameter of suction nozzles Dn, the length of nozzles L, the quantity of nozzles N, the diameter of the pilot hole Dg, the inclination angle of nozzles θs, and the deflection angle of nozzles θd. The CFD simulation experiments were implemented according to the orthogonal array L18(37) and were analyzed using the range, variance, and regression analysis. A mathematical model was developed for the RC efficiency to understand the effect of the factors. The results show that the diameter of suction nozzles Dn has an essential effect on the RC performance of the drill bit. An ideal combination is Dn = 20 mm, L = 50 mm, N = 3, Dg = 50 mm, and θs = 35°, θd = 10°, which was obtained through variance analysis and validated via CFD simulation for higher efficiency. To verify its real performance, a large-diameter RC drill bit with a diameter of 1.2 m was manufactured and tested in the field. The result demonstrated that the drill bit had excellent cutting transport and reverse circulation performance. Full article
(This article belongs to the Special Issue Advances in Oil and Gas Drilling Technologies)
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