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Minerals
Special Issues
Physical and Mechanical Properties of Unconventional Reservoirs
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Physical and Mechanical Properties of Unconventional Reservoirs

A special issue of Minerals (ISSN 2075-163X).

Deadline for manuscript submissions: closed (31 May 2023) | Viewed by 1329

Special Issue Editors

Dr. Liu Yang

E-Mail Website
Guest Editor
State Key Laboratory for GeoMechanics and Deep Underground Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China
Interests: imbibition; mutlphase flow in porous media; hydraulic fracturing; rock mechanics
Special Issues, Collections and Topics in MDPI journals
Dr. Yanbing Wang

E-Mail Website
Guest Editor
School of Mechanics and Architecture Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China
Interests: blasting engineering and rock dynamics
Dr. Wenxi Ren

E-Mail Website
Guest Editor
State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China
Interests: production data analysis; adsorption; formation damage control
Dr. Xiang Ding

E-Mail Website
Guest Editor
Sino-French Rock and Soil Mechanics and Concrete Material Joint Research Center, Hubei University of Technology, Wuhan 430068, China
Interests: hydraulic fracturing; rheology; constitutive modeling

Special Issue Information

Dear Colleagues,

Petrophysics in unconventional reservoirs (shale, tight oil/gas, gas hydrate, geothermal energy), especially multiscale characterization, multi field coupling mechanics and multiphase flow, are relevant to multi-disciplinary porous media research (e.g., hydrocarbon extraction, environmental issues, hydrology). Reliable characterization at different scales, advances in theoretical modeling and numerical methods of multiphase flow and rock mechanics are crucial for many applications, including studies of residual oil in unconventional reservoirs and long-term storage of supercritical CO2 in geological formations.

We invite researchers to submit original research articles, case studies, and review papers addressing the most important challenges in physical-mechanical characterization, multiphase flow and multi field coupling mechanics in unconventional reservoirs. This Special Issue will compile descriptions and applications of modern methods and techniques to model petrophysical processes associated with unconventional reservoirs.

Dr. Liu Yang
Dr. Yanbing Wang
Dr. Wenxi Ren
Dr. Xiang Ding
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. Minerals 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

  • rock characterization and reconstruction
  • hydrofracturing methods
  • tight porous media analysis
  • pore network modeling
  • upscaling
  • multiphase flows
  • fractal modeling
  • multiscale modeling of porous media flow
  • coupled transport phenomena
  • gas capture and storage
  • capillarity
  • wettability of geological media and its variation

Published Papers (1 paper)

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Research

20 pages, 9112 KiB  
Article
Nanoquartz in Late Cretaceous Deposits in the Lower Berezovskaya Subformation
by Olga A. Zueva, Olga V. Postnikova and Alexander V. Postnikov
Minerals 2023, 13(8), 993; https://doi.org/10.3390/min13080993 - 26 Jul 2023
Viewed by 642
Abstract
The Lower Berezovskaya subformation in the Upper Cretaceous is a complex reservoir with unconventional reservoir rocks located in the north of Western Siberia. The clay–siliceous deposits in the Lower Berezovskaya subformation are represented by various types of silicites that have unique petrophysical and [...] Read more.
The Lower Berezovskaya subformation in the Upper Cretaceous is a complex reservoir with unconventional reservoir rocks located in the north of Western Siberia. The clay–siliceous deposits in the Lower Berezovskaya subformation are represented by various types of silicites that have unique petrophysical and mineralogical characteristics that cause significant difficulties in the development of associated productive layers. The aim of the research is to study their mineral composition, the parameters of the void space structure, and the conditions of formation, as well as to determine the sources of silica and perform a detailed study on the structure of nanoquartz. To study the mineral composition, the structure of the void space, and the genesis, special methodological techniques were applied, and a comprehensive analysis of the results using a wide range of laboratory studies, including optical micro- and stereoscopy, scanning electron microscopy, X-ray diffraction analysis, and microtomography, was performed. Silicites in the Lower Berezovskaya subformation are caused by the complex structure of the void space, which includes a wide range of genetic types of voids ranging from micron and submicron dimensions to fractions of a millimeter (voids confined to the burrowing organisms, intraform voids, interform voids, lenticular voids, cellular voids, and voids confined to microstylolite seams). The most widespread type of void is the interaggregate (lenticular and cellular) void, which is formed by clay (montmorillonite) scales, on the surface of which numerous α-quartz nanocrystals ranging in size from 0.05 to 0.5 microns are noted. The content of such quartz reaches up to 80% of the total volume of the rock in individual samples. The source of siliceous material for nanoquartz crystals was most likely volcanic processes, since the revealed mineral paragenesis of montmorillonite, cristobalite, and zeolites indicates the active transformation of ash material that entered the basin from volcanic formations. Full article
(This article belongs to the Special Issue Physical and Mechanical Properties of Unconventional Reservoirs)
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