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Journals
Processes
Special Issues
Oil and Gas Drilling Processes: Control and Optimization
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Oil and Gas Drilling Processes: Control and Optimization

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Energy Systems".

Deadline for manuscript submissions: 2 March 2025 | Viewed by 4416

Special Issue Editors

Prof. Dr. Rui Deng

E-Mail Website
Guest Editor
College of Geophysics and Petroleum Resources, Yangtze University, Jingzhou 434023, China
Interests: formation evaluation; rock mechanics; multiphase flow; experimental study
Dr. Xuyang Guo

E-Mail Website
Guest Editor
College of Petroleum Engineering, China University of Petroleum, Beijing 102249, China
Interests: petroleum engineering; rock mechanics; coupled THMC behaviors in gas hydrate reservoirs
Special Issues, Collections and Topics in MDPI journals
Dr. Meng Chen

E-Mail Website
Guest Editor
School of Geoscience and Technology, Southwest Petroleum University China, Chengdu 610500, China
Interests: numerical simulation and experiments; multiphase flow for production wells; intelligent optimization evaluation in oil reservoir; CCUS

Special Issue Information

Dear Colleagues,

Successful drilling and completion is the key to efficient oil and gas production in hydrocarbon-bearing reservoirs. Reliable and accurate characterization of the fluid flow within the wellbore and the rock mechanical behaviors associated with drilling and completion is crucial in this process. The use of numerical modeling, simulation, experimental methods, and field data analysis is of great significance.

The Special Issue, entitled “Oil and Gas Drilling Processes Control and Optimization”, will curate novel or practical advances in research on the use of numerical, experimental, analytical, and field studies related to drilling processes. The studies of rock mechanics, fluid mechanics, and parameter optimization are all linked.

Topics include, but are not limited to, the following:

  • The development of numerical or analytical methods for fluid mechanics and rock mechanics-related behaviors during drilling and production;
  • The development of experimental methods related to fluid mechanics and rock mechanics in drilling;
  • Numerical and/or experimental methods in the characterization of multiphase flow in wellbores during drilling, completion, or production;
  • Formation evaluation techniques related to control and optimization during drilling and production.

Prof. Dr. Rui Deng
Dr. Xuyang Guo
Dr. Meng Chen
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. Processes is an international peer-reviewed open access monthly 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 2400 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

  • drilling
  • completion
  • rock mechanics
  • multiphase flow
  • well log
  • formation evaluation
  • MWD and LWD
  • experimental study
  • numerical study

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Further information on MDPI's Special Issue polices can be found here.

Published Papers (5 papers)

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Research

20 pages, 11503 KiB  
Article
Combined Deep-Fill and Histogram Equalization Algorithm for Full-Borehole Electrical Logging Image Restoration
by Junhua Wang, Zhenxue Hou, Zhiqiang Zhang, Meng Wang and Haoran Cheng
Processes 2024, 12(8), 1568; https://doi.org/10.3390/pr12081568 - 26 Jul 2024
Viewed by 338
Abstract
Electrical borehole imaging tools cannot achieve full-borehole images due to their structure limitation. Gaps always occur between pads, and it is necessary to fill in the gaps for subsequent interpretation. In this paper, an improved model for borehole image restoration and enhancement is [...] Read more.
Electrical borehole imaging tools cannot achieve full-borehole images due to their structure limitation. Gaps always occur between pads, and it is necessary to fill in the gaps for subsequent interpretation. In this paper, an improved model for borehole image restoration and enhancement is established by combining a “Deep-Fill” image repair algorithm based on generative adversarial networks (GANs) with histogram equalization principles. Firstly, resistivity data is converted into images, and the anomalous areas are manually repaired. Then, the manually repaired images undergo iterative training using the “Deep-Fill” model. Finally, the repaired images are further enhanced through histogram equalization principles. Results show the overall restoration quality of the model surpasses that of the original GAN-based restoration model, particularly in terms of texture coherence at junctions. This approach not only enhances the quality of repaired images but also improves the interpretability of geological features of the electrical imaging logs. Full article
(This article belongs to the Special Issue Oil and Gas Drilling Processes: Control and Optimization)
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18 pages, 5455 KiB  
Article
Research on Operation Optimization of Fluid Sampling in Wireline Formation Testing with Finite Volume Method
by Lejun Wu, Junhua Wang, Haibo Liu, Rui Huang, Huizhuo Xie, Xiaodong Li, Xuan Li, Jinhuan Liu and Changjie Zhao
Processes 2024, 12(7), 1515; https://doi.org/10.3390/pr12071515 - 19 Jul 2024
Viewed by 390
Abstract
Wireline formation testing is an important technique in the exploration and development of oil fields. Not only can real fluid samples be prepared from the formation directly obtained to know exactly whether the oil existed in the formation or not, but it can [...] Read more.
Wireline formation testing is an important technique in the exploration and development of oil fields. Not only can real fluid samples be prepared from the formation directly obtained to know exactly whether the oil existed in the formation or not, but it can also show flowing pressure change to determine the production capacity of the formation. So, it is an important measurement method for formation evaluation during the drilling process and supports activities related to the exploration and development of oil fields. A numerical simulation model in this article is researched and established based on the finite volume method considering the influence of sensitive parameters such as reservoir heterogeneity, probe suction area, and mud-filtrate invasion depth during the drilling. The model is capable of designing and evaluating formation fluid sampling operations by calculating hydrocarbon content and flowing pressure. Furthermore, through case application, the performance and effect of the process of wireline formation testing were investigated. The results indicate that this technology can serve as an effective auxiliary tool for fluid sampling operations with the function of optimizing fluid sampling measures. It can improve the accuracy of predicting indicators such as hydrocarbon content and breakthrough time during the sampling process. This study provides important supporting evidence and technical guidance for professionals in geological exploration and oil field development. Full article
(This article belongs to the Special Issue Oil and Gas Drilling Processes: Control and Optimization)
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16 pages, 8150 KiB  
Article
Modeling Surface Roughness and Flow of Gases in Threaded Connections to Analyze Sealing Performance
by Wenqi Zhu, Yu Liang and Lv Zhao
Processes 2024, 12(3), 574; https://doi.org/10.3390/pr12030574 - 14 Mar 2024
Viewed by 759
Abstract
Oil casings and premium threaded connections play vital roles in the oil and gas extraction industry. The present work establishes an integrated modeling framework for the sealability assessment of premium threaded connections which can be easily implemented and employed by engineers. The framework [...] Read more.
Oil casings and premium threaded connections play vital roles in the oil and gas extraction industry. The present work establishes an integrated modeling framework for the sealability assessment of premium threaded connections which can be easily implemented and employed by engineers. The framework incorporates a part-scale finite element analysis of the make-up process, a micro-scale simulation of the contact behavior, and a mechanism-informed gap flow model. It is found that complete sealing can be achieved when the contact pressure exceeds 1540 MPa for Gaussian rough surfaces presenting a roughness of 1.6 μm. The seal surface fit is revealed to be critical for sealing performance, as it slightly changes the optimum make-up torque (up to 4%) but significantly changes contact pressure (up to 22%). At an optimum make-up torque, the connection with the loosest seal surface tolerance fit is prone to gas leakage when considering an inlet pressure of 110 MPa. The proposed modeling framework can be extended to other types of threaded connections with metal–metal contact sealing. Full article
(This article belongs to the Special Issue Oil and Gas Drilling Processes: Control and Optimization)
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18 pages, 20806 KiB  
Article
Corrosion Behavior and Mechanical Performance of Drill Pipe Steel in a CO2/H2S-Drilling-Fluid Environment
by Yushan Zheng, Yuhan Zhang, Bingcai Sun, Bo Zhang, Sixi Zhang, Shuli Jin, Zhongling Xiao, Shengli Chu, Yinghua Jing and Zhi Zhang
Processes 2024, 12(3), 502; https://doi.org/10.3390/pr12030502 - 29 Feb 2024
Cited by 1 | Viewed by 1084
Abstract
Objectives: This article investigates the corrosion behavior and mechanical-property changes of S135, G105, and V150 drill pipe materials in a high-temperature-resistant, potassium amino poly-sulfonate drilling fluid, which has good lubrication performance and contains CO2/H2S, by applying an 80% yield-limit-load [...] Read more.
Objectives: This article investigates the corrosion behavior and mechanical-property changes of S135, G105, and V150 drill pipe materials in a high-temperature-resistant, potassium amino poly-sulfonate drilling fluid, which has good lubrication performance and contains CO2/H2S, by applying an 80% yield-limit-load simulation. The results show that the CO2-corrosion behavior of G105, S135, and V150 drill pipes are obvious under the simulated constant-load-stress-corrosion environments at the wellhead, well-middle, and bottomhole positions. Compared to uncorroded drill pipes, S135 and V150 drill pipes have increased strength and yield ratios, decreased fracture elongation, and increased sensitivity to hydrogen embrittlement under H2S action, and V150 has a greater risk of stress-hydrogen embrittlement. The strength and yield ratios of G105-material drill pipes decrease, while the fracture elongation increases; the intensity-change amplitude levels are ranked V150 > G105 > S135, and the fracture-elongation-change amplitude is ranked G105 > S135 > V150. The tensile-performance-change amplitude and the SSCC (Sulfide-Stress-Corrosion Cracking) sensitivity of G105 and V150 drill pipes were the highest at the bottomhole. S135 drill pipe materials were most affected by pitting and tensile action at the wellhead, and they had the with the largest SSCC sensitivity. Full article
(This article belongs to the Special Issue Oil and Gas Drilling Processes: Control and Optimization)
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17 pages, 9788 KiB  
Article
Numerical Simulation Study on the Damage Mechanism of the Combined Perforating Well Testing Tubing in Ultra-Deep Wells
by Jiadong Jiang, Qiao Deng, Dong Yang, Guilin Qi, Fan Zhang and Leichuan Tan
Processes 2024, 12(2), 380; https://doi.org/10.3390/pr12020380 - 14 Feb 2024
Viewed by 1078
Abstract
During perforation in ultra-deep wells, the blast shock wave can induce dynamic responses of the perforating tubing, leading to potential downhole accidents such as vibration, deformation, and even fracture of the perforating tubing. To comprehend the dynamic response characteristics of the perforating tubing [...] Read more.
During perforation in ultra-deep wells, the blast shock wave can induce dynamic responses of the perforating tubing, leading to potential downhole accidents such as vibration, deformation, and even fracture of the perforating tubing. To comprehend the dynamic response characteristics of the perforating tubing under blast impact load, we conducted a joint finite element simulation using SolidWorks, Hypermesh, and LS-DYNA. The simulation included deformation analysis, motion analysis, and strength analysis of the perforating tubing. By analyzing these factors, we obtained the change in velocity, acceleration, and equivalent stress of the perforating tubing over time under the blast load. The finite element analysis indicates the following: (a) the bottom of the perforating tubing is susceptible to significant tension compression cycle; (b) the velocity amplitude variation is smallest at the top of the perforating tubing, while the frequency and peak values of velocity changes are maximal at the bottom of the perforating tubing; and (c) the top and bottom of the tubing string are the vulnerable parts of the perforating tubing system. Full article
(This article belongs to the Special Issue Oil and Gas Drilling Processes: Control and Optimization)
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