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Enhanced Oil Recovery by the Digital Intelligence Sealaplugology

A special issue of Energies (ISSN 1996-1073).

Deadline for manuscript submissions: closed (9 February 2025) | Viewed by 1066

Special Issue Editors


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Guest Editor
College of Petroleum Engineering, China University of Petroleum (Beijing), Beijing 102249, China
Interests: sealaplug in petroleum engineering; algorithm of big-data cocooning (ABDC); leakage prevention and plugging in oil and gas wells; reservoir damage control of unconventional oil and gas reservoirs
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Guest Editor
School of Petroleum and Natural Gas Engineering, Changzhou University, Changzhou 213164, China
Interests: micro-nano bubble for EOR and other oilfield applications; polymer microsphere plugging; carbon dioxide storage and utilization; development and utilization of salt cavern gas storage; shale gas/oil development

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Guest Editor
Hubei Provincial Key Laboratory of Oil and Gas Drilling and Production Engineering (Yangtze University), Wuhan 430100, China
Interests: rock mechanics; intelligent plugging data-driven; simulation of micro particle migration and plugging during water injection process; temporary plugging turning fracturing; energy storage fracturing

Special Issue Information

Dear Colleagues,

Sealaplugology, including the associated theory and technology, has been rapidly developed to solve or optimize on-site problems by plugging certain structures or channels based on specific means, like fuzzy capsules. Especially, in the field of enhanced oil recovery, sealaplugology has already brought transformative advances with the development and exploitation of unconventional oil and gas such as coalbed methane, tight sandstone gas, shale gas, etc. Meanwhile, novel types of sealing materials and plugging agents, as well as the potential application technologies also represent a branch of the advancement of sealaplugology.

However, the conventional plugging technology has been difficult to adapt to the current on-site process requirements, and the prominent contradictions have become increasingly apparent. Digital Intelligence Sealaplugology related to big-data analysis, multi-factor coupling, multidimensional engineering parameters optimization and mathematical methods linkage have been proposed, including intelligent plugging materials (velvet capsules, micro-nano bubbles, polymer microspheres, etc.), intelligent technology, intelligent evaluation (reservoir protection in drilling, completion, fracturing, etc.), etc.

Aiming to present and disseminate the newest methods and theories related to enhanced oil recovery or reduce economic costs driven by Digital Intelligence Sealaplugology, this Special Issue is inviting the contribution of innovative studies (including both review and research papers) that report the theories, methods, technologies, materials, and case studies related to enhanced oil recovery and increased economic profits with Digital Intelligence Sealaplugology.

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

  • All aspects of petroleum engineering related to sealaplugology, including drilling, well completion, production, workover, etc.
  • All interdisciplinary research regarding sealaplugology, artificial intelligence, big data, and enhanced oil recovery.
  • The development and application of novel types of sealing agents or materials for enhanced oil recovery, oil and gas well engineering, etc.
  • Extraction technologies (hydraulic fracturing, diverting fracturing, in situ extraction, etc.) of unconventional oil and gas.
  • Safety, reliability, and eco-friendliness in enhanced oil recovery.
  • Applications of micro-nano bubbles for EOR, produced fluids treatment in oilfields
  • Advanced technologies or theories for pipeline cleaning, gas storage construction, geological storage, etc.

Prof. Dr. Lihui Zheng
Dr. Nannan Liu
Dr. Xiaopeng Zhai
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.

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Keywords

  • EOR
  • coalbed methane
  • hydraulic fracturing
  • tight sandstone gas
  • shale gas
  • sealing materials
  • plugging agents
  • intelligent sealaplugology
  • micro-nano bubbles

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Published Papers (1 paper)

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Research

19 pages, 11762 KiB  
Article
Diffusion of N2/CH4/CO2 in Heptane-Containing Nanoblind Ends
by Yiran Wang, Xinglong Chen, Nannan Liu and Hengchen Qi
Energies 2024, 17(21), 5363; https://doi.org/10.3390/en17215363 - 28 Oct 2024
Viewed by 742
Abstract
The prevalence of micropores and nanopores in low-permeability reservoirs is a cause for concern, as it results in a sizeable quantity of oil reserves being trapped within them. The water-gas dispersion system has the capacity to expand the reservoirs’ wave volume and enhance [...] Read more.
The prevalence of micropores and nanopores in low-permeability reservoirs is a cause for concern, as it results in a sizeable quantity of oil reserves being trapped within them. The water-gas dispersion system has the capacity to expand the reservoirs’ wave volume and enhance oil recovery. While the microscopic oil repulsion mechanism has been the center of attention, the oil repulsion effect of three distinct types of gases (N2, CH4, and CO2) is of particular importance in understanding the displacement mechanism of N2/CH4/CO2 on heptane at the blind end of the nanometer. A molecular dynamics simulation using the LAMMPS software was employed to construct a model of a blind end of heptane on a SiO2 wall and an interface model with different types of gas molecules. This was done to investigate the microscopic mechanism of heptane replacement by gas molecules. The temperature (50 °C) and pressure (30 MPa) of the reservoir in the Changqing oil field are selected as the parameters for analysis. The findings indicate that all three types of gas molecules can enter the blind end and displace heptane. However, supercritical CO2 forms a mixed phase with heptane, which is more prone to extruding oil molecules situated near the inner wall surface of the blind end and desorbing the oil film. The results demonstrate that, in the context of the blind end, gaseous CO2 exhibits a lower solvation ability but superior extrusion diffusion ability for heptane compared to N2 and CH4. Furthermore, the interaction energy indicates that the interactions between two states of CO2 and heptane, as well as the thickness of the interface, increase with increasing pressure and temperature. The findings of this study elucidate the microscopic mechanism underlying the replacement of oil droplets or oil films at the blind end by different gases under reservoir conditions at the molecular level and offer further guidance for the selection of the gas phase and the replacement state in the water-gas dispersive drive system. Full article
(This article belongs to the Special Issue Enhanced Oil Recovery by the Digital Intelligence Sealaplugology)
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