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Energies
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Advances in Geomechanics in Unconventional Reservoirs
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Advances in Geomechanics in Unconventional Reservoirs

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "H1: Petroleum Engineering".

Deadline for manuscript submissions: closed (15 December 2021) | Viewed by 3705

Special Issue Editors

Dr. Bo Ren

E-Mail Website
Guest Editor
Bureau of Economic Geology, University of Texas at Austin, Austin, TX, USA
Interests: unconventional resources; low-carbon energy; data science and engineering analytics; improved oil recovery; reservoir engineering; geologic carbon storage
Dr. Zhuang Sun

E-Mail Website
Guest Editor
Dassault Systèmes, 343 Sansome St, San Francisco, CA 94104-5607, USA
Interests: micromechanics; reservoir geomechanics; CO2 geological storage
Special Issues, Collections and Topics in MDPI journals
Dr. Chao Gao

E-Mail Website
Guest Editor
Department of Petroleum & Geosystems Engineering, The University of Texas at Austin, 200 E Dean Keeton St, Austin, TX 78712, USA
Interests: geomechanics; reservoir simulation; drilling engineering
Dr. Shuang Zheng

E-Mail Website
Guest Editor
Hildebrand Austin Department of Petroleum and Geosystems Engineering, The University of Texas at Austin, Austin, TX, USA
Interests: Computational geomechanics; Hydraulic fracturing modeling; Numerical reservoir simulation; Improved oil recovery; Geothermal energy; Underground storage

Special Issue Information

Dear Colleagues,

We are pleased to invite you to submit papers to the journal Energies for a Special Issue that will be entirely devoted to “Advances in Geomechanics in Unconventional Reservoirs”. Recent studies on unconventional reservoirs include multiple disciplines, including reservoir engineering, geomechanics, completion engineering, and drilling engineering. Geomechanics of unconventional reservoirs integrates mechanics, geology, geophysics, rock physics to find solutions for economic drilling, characterization, and production of resources. 

This Special Issue will pay attention to geomechanics in unconventional reservoirs. Topics of interest for publication include but are not limited to:

  • Wellbore stability;
  • Hydraulic fracturing;
  • Experimental geomechanics;
  • Geomechanics in design, construction, and drilling;
  • Coupled geomechanics and reservoir simulation;
  • Infill drilling and refracturing;
  • Plasticity

Dr. Bo Ren
Dr. Zhuang Sun
Dr. Chao Gao
Dr. Shuang Zheng
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

  • Wellbore stability
  • Hydraulic fracturing
  • Geomechanics
  • Rock mechanics
  • Coupled geomechanics and reservoir simulation
  • Infill drilling
  • Refracturing
  • Shale
  • Unconventional resources
  • Plasticity

Published Papers (1 paper)

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Research

28 pages, 14712 KiB  
Article
Modeling Hydraulic Fracturing Using Natural Gas Foam as Fracturing Fluids
by Shuang Zheng and Mukul M. Sharma
Energies 2021, 14(22), 7645; https://0-doi-org.brum.beds.ac.uk/10.3390/en14227645 - 16 Nov 2021
Cited by 3 | Viewed by 3026
Abstract
Stranded gas emission from the field production because of the limitations in the pipeline infrastructure has become one of the major contributors to the greenhouse effects. How to handle the stranded gas is a troublesome problem under the background of global “net-zero” emission [...] Read more.
Stranded gas emission from the field production because of the limitations in the pipeline infrastructure has become one of the major contributors to the greenhouse effects. How to handle the stranded gas is a troublesome problem under the background of global “net-zero” emission efforts. On the other hand, the cost of water for hydraulic fracturing is high and water is not accessible in some areas. The idea of using stranded gas in replace of the water-based fracturing fluid can reduce the gas emission and the cost. This paper presents some novel numerical studies on the feasibility of using stranded natural gas as fracturing fluids. Differences in the fracture creating, proppant placement, and oil/gas/water flowback are compared between natural gas fracturing fluids and water-based fracturing fluids. A fully integrated equation of state compositional hydraulic fracturing and reservoir simulator is used in this paper. Public datasets for the Permian Basin rock and fluid properties and natural gas foam properties are collected to set up simulation cases. The reservoir hydrocarbon fluid and natural gas fracturing fluids phase behavior is modeled using the Peng-Robinson equation of state. The evolving of created fracture geometry, conductivity and flowback performance during the lifecycle of the well (injection, shut-in, and production) are analyzed for the gas and water fracturing fluids. Simulation results show that natural gas and foam fracturing fluids are better than water-based fracturing fluids in terms of lower breakdown pressure, lower water leakoff into the reservoir, and higher cluster efficiency. NG foams tend to create better propped fractures with shorter length and larger width, because of their high viscosity. NG foam is also found to create better stimulated rock volume (SRV) permeability, better fracturing fluid flowback with a large water usage reduction, and high natural gas consumption. The simulation results presented in this paper are helpful to the operators in reducing natural gas emission while reducing the cost of hydraulic fracturing operation. Full article
(This article belongs to the Special Issue Advances in Geomechanics in Unconventional Reservoirs)
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