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New Approaches to Resolving Oil & Gas Sector Specific Technological Issues

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 2020) | Viewed by 9285

Special Issue Editors

Dr. Dmitry Tananykhin

E-Mail Website
Guest Editor
Department of Development and Operation of Oil and Gas Fields, Saint-Petersburg Mining University, St Petersburg, Russia
Interests: reservoir engineering; enhanced oil and gas recovery; unconsolidated reservoirs; fluid dynamic systems
Dr. Masoud Riazi

E-Mail Website
Guest Editor
Director at EOR Research Center, Shiraz University, Shiraz, Iran
Interests: surface chemistry; fluid dynamics; nanotechnology; chemical engineering; petroleum engineering

Special Issue Information

Dear Colleagues,

The purpose of this Special Issue is to collect original research or review articles on the ways and methods of prospecting, drilling, producing, and transporting hydrocarbons.

We are looking for research on enhanced oil recovery; mitigation of hydrocarbon production complications; new and promising methods of prospecting for hydrocarbon deposits; ways to improve the technology and technological processes of oil transportation; methods and technology for processing, completion, and repair that meet the requirements of rational subsoil use; environmental and technological safety.

Dr. Dmitry Tananykhin
Dr. Masoud Riazi
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

  • Development of oil and gas fields
  • Well completion
  • Well-killing technologies
  • Enhanced oil recovery
  • Water shut-off technologies
  • Geodynamically hazardous areas
  • Raw-material resources of the Arctic region
  • Unconventional oil and gas reserves
  • Production of methanol and synthetic liquid hydrocarbons
  • Oil emulsions
  • Optimization of energy consumption of drilling
  • Arrangement of Arctic oil and gas fields
  • Directional and horizontal wells
  • Utilization of associated petroleum gas
  • Artificial water-flooding
  • Low-permeable reservoirs
  • Well and reservoir surveys
  • Non-metal buried pipe location
  • Marine tankers in the Arctic region
  • Petrochemical industry
  • Efficient technologies of oil and natural gas transportation
  • Energy saving and digital technologies

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

Published Papers (2 papers)

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Research

15 pages, 3844 KiB  
Article
Well Killing Technology before Workover Operation in Complicated Conditions
by Dmitry V. Mardashov, Mikhail K. Rogachev, Yury V. Zeigman and Vyacheslav V. Mukhametshin
Energies 2021, 14(3), 654; https://doi.org/10.3390/en14030654 - 28 Jan 2021
Cited by 49 | Viewed by 5190
Abstract
Well killing is an important technological stage before conducting workover operation, one of the tasks of which is to preserve and restore the natural filtration characteristics of the bottomhole formation zone (BFZ). Special attention should be paid to the choice of well killing [...] Read more.
Well killing is an important technological stage before conducting workover operation, one of the tasks of which is to preserve and restore the natural filtration characteristics of the bottomhole formation zone (BFZ). Special attention should be paid to the choice of well killing technologies and development of wells in complicated conditions, which include abnormally low reservoir pressure, high oil-gas ratio and carbonate reservoir type. To preserve the filtration characteristics of the productive formation and prevent fluid losses in producing wells during well killing operation, blocking compositions are used. At the same time, an informed choice of the most effective well killing technologies is required. Consequently, there is a need to conduct laboratory physicochemical and coreflood experiments simulating geological, physical, and technological conditions of field development, as similar as possible to actual reservoir conditions. The article presents the results of experimental studies on the development well killing technologies of producing wells during workover operation in various geological, physical, and technological conditions of oil field development. Physicochemical and coreflood laboratory experiments were carried out with the simulation of the processes of well killing and development of wells in reservoir conditions with the use of modern high-technology equipment in the Enhanced Oil Recovery Laboratory of the Department of Development and Operation of Oil and Gas Fields at St. Petersburg Mining University. As a result of the experimental studies, new compositions of well killing and stimulation fluids were developed, which ensure to prevent fluid loss, gas breakthrough, as well as the preservation, restoration and improvement of the filtration characteristics of the BFZ in the conditions of terrigenous and carbonate reservoirs at different stages of oil field development. It is determined that the developed process fluids, which include surfactants (YALAN-E2 and NG-1), have a hydrophobic effect on the porous medium of reservoir rocks, which ultimately contributes to the preservation, restoration and improvement of the filtration characteristics of the BFZ. The value of the presented research results is relevant for practice and confirmed by the fact that, as a result of field tests of the technology for blocking the BFZ with the composition of inverse water–oil emulsion during well killing before workover operation, an improvement in the efficiency of wells operation was obtained in the form of an increase in their oil production rate by an average of 5–10 m3/day, reducing the time required for the well to start operating up to 1–3 days and reducing the water cut of formation fluid by 20–30%. Full article
(This article belongs to the Special Issue New Approaches to Resolving Oil & Gas Sector Specific Technological Issues)
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15 pages, 3375 KiB  
Article
Modeling of Heavy-Oil Flow with Regard to Their Rheological Properties
by Ilia Beloglazov, Valentin Morenov, Ekaterina Leusheva and Ove T. Gudmestad
Energies 2021, 14(2), 359; https://doi.org/10.3390/en14020359 - 11 Jan 2021
Cited by 21 | Viewed by 3511
Abstract
With the depletion of traditional energy resources, the share of heavy-oil production has been increasing recently. According to some estimates, their reserves account for 80% of the world’s oil resources. Costs for extraction of heavy oil and natural bitumen are 3–4 times higher [...] Read more.
With the depletion of traditional energy resources, the share of heavy-oil production has been increasing recently. According to some estimates, their reserves account for 80% of the world’s oil resources. Costs for extraction of heavy oil and natural bitumen are 3–4 times higher than the costs of extracting light oil, which is due not only to higher density and viscosity indicators but also to insufficient development of equipment and technologies for the extraction, transportation, and processing of such oils. Currently, a single pipeline system is used to pump both light and heavy oil. Therefore, it is necessary to take into account the features of the heavy-oil pumping mode. This paper presents mathematical models of heavy-oil flow in oil-field pipelines. The rheological properties of several heavy-oil samples were determined by experiments. The dependencies obtained were used as input data for a simulation model using computational fluid dynamics (CFD) methods. The modeling condition investigates the range of shear rates up to 300 s−1. At the same time, results up to 30 s−1 are considered in the developed computational models. The methodology of the research is, thus, based on a CFD approach with experimental confirmation of the results obtained. The proposed rheological flow model for heavy oil reflects the dynamics of the internal structural transformation during petroleum transportation. The validity of the model is confirmed by a comparison between the theoretical and the obtained experimental results. The results of the conducted research can be considered during the selection of heavy-oil treatment techniques for its efficient transportation. Full article
(This article belongs to the Special Issue New Approaches to Resolving Oil & Gas Sector Specific Technological Issues)
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