Fluid Flow in Unconventional Gas...
3
Editorial Fluid Flow in Unconventional Gas Reservoirs Tongqiang Xia , 1 Egor Dontsov, 2 Zhongwei Chen , 3 Fengshou Zhang , 4 Mingyao Wei , 5 and Xiangzhao Kong 6 1 State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Xuzhou 221116, China 2 Department of Civil and Environmental Engineering, University of Houston, Houston, TX 77004, USA 3 School of Mechanical and Mining Engineering, The University of Queensland, St. Lucia, QLD 4072, Australia 4 Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China 5 State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China 6 Department of Earth Sciences Institute of Geophysics, ETH Zürich, 8092 Zurich, Switzerland Correspondence should be addressed to Tongqiang Xia; [email protected] Received 4 June 2018; Accepted 4 June 2018; Published 2 July 2018 Copyright © 2018 Tongqiang Xia et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Unconventional gas (including tight, shale, and coal seam gas) production has led to a drastic change of global energy landscape. The fundamental understanding of gas flow behaviours in unconventional gas reservoirs is essential to elevate the potential gas resource recovery. The behaviours of gas flow follow a chain of physicochemical processes in unconventional gas reservoirs, which can be labeled as “coupled processes” implying that one process affects the ini- tiation and progress of another. This process chain is linked together through different disciplines, including geoscience, rock mechanics, multiphase flow, engineering chemistry, and thermodynamics, among others. Although progress on evaluation of migration, control, and recovery of unconven- tional gas has been achieved using mathematical models and physical experiments, the role of different fluids (e.g., CH 4 and other hydrocarbons, CO 2 , and water) in unconven- tional gas flow is not well understood. Filling this knowledge gap is likely to play a critical impact on raising the potential of unconventional gas resource recovery and on reducing the environmental risks. The overall theme of this special issue focuses on the impact of different fluids on flow behaviours and its impact on gas recovery. It serves as a platform for international researchers and practitioners from different disciplines to develop innovative solutions and to explore emerging tech- nologies in key areas of shale and coal seam gas extraction. This special issue presented contains 16 peer-reviewed papers to address technical and scientific aspects in uncon- ventional gas reservoirs, topics covering physical behav- iour of gas reservoir (4 articles), multiphase flow mechanics (5 articles), hydraulic fracturing mechanics (3 articles), and gas production (4 articles). This special issue is organized as follows: (1) Part A: physical behaviour of gas reservoir (i) Triple-porosity modelling for the simulation of mul- tiscale flow mechanisms in shale reservoirs (ii) Effects of maceral compositions of coal on methane adsorption heat (iii) Characteristics of pores under the influence of cyclic cryogenic liquid carbon dioxide using low-field nuclear magnetic resonance (iv) Real-time pore pressure detection—indicators and improved methods (2) Part B: multiphase flow mechanics Hindawi Geofluids Volume 2018, Article ID 2178582, 2 pages https://doi.org/10.1155/2018/2178582
Transcript of Fluid Flow in Unconventional Gas...
EditorialFluid Flow in Unconventional Gas Reservoirs
Tongqiang Xia ,1 Egor Dontsov,2 Zhongwei Chen ,3 Fengshou Zhang ,4MingyaoWei ,5
and Xiangzhao Kong6
1State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Xuzhou 221116, China2Department of Civil and Environmental Engineering, University of Houston, Houston, TX 77004, USA3School of Mechanical and Mining Engineering, The University of Queensland, St. Lucia, QLD 4072, Australia4Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China5State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy ofSciences, Wuhan 430071, China6Department of Earth Sciences Institute of Geophysics, ETH Zürich, 8092 Zurich, Switzerland
Correspondence should be addressed to Tongqiang Xia; [email protected]
Received 4 June 2018; Accepted 4 June 2018; Published 2 July 2018
Copyright © 2018 Tongqiang Xia et al. This is an open access article distributed under the Creative Commons Attribution License,which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Unconventional gas (including tight, shale, and coal seamgas) production has led to a drastic change of global energylandscape. The fundamental understanding of gas flowbehaviours in unconventional gas reservoirs is essential toelevate the potential gas resource recovery. The behavioursof gas flow follow a chain of physicochemical processes inunconventional gas reservoirs, which can be labeled as“coupled processes” implying that one process affects the ini-tiation and progress of another. This process chain is linkedtogether through different disciplines, including geoscience,rock mechanics, multiphase flow, engineering chemistry,and thermodynamics, among others. Although progress onevaluation of migration, control, and recovery of unconven-tional gas has been achieved using mathematical modelsand physical experiments, the role of different fluids (e.g.,CH4 and other hydrocarbons, CO2, and water) in unconven-tional gas flow is not well understood. Filling this knowledgegap is likely to play a critical impact on raising the potentialof unconventional gas resource recovery and on reducingthe environmental risks.
The overall theme of this special issue focuses on theimpact of different fluids on flow behaviours and its impacton gas recovery. It serves as a platform for internationalresearchers and practitioners from different disciplines to
develop innovative solutions and to explore emerging tech-nologies in key areas of shale and coal seam gas extraction.
This special issue presented contains 16 peer-reviewedpapers to address technical and scientific aspects in uncon-ventional gas reservoirs, topics covering physical behav-iour of gas reservoir (4 articles), multiphase flow mechanics(5 articles), hydraulic fracturing mechanics (3 articles), andgas production (4 articles).
This special issue is organized as follows:
(1) Part A: physical behaviour of gas reservoir
(i) Triple-porosity modelling for the simulation of mul-tiscale flow mechanisms in shale reservoirs
(ii) Effects of maceral compositions of coal on methaneadsorption heat
(iii) Characteristics of pores under the influence of cycliccryogenic liquid carbon dioxide using low-fieldnuclear magnetic resonance
(iv) Real-time pore pressure detection—indicators andimproved methods
(2) Part B: multiphase flow mechanics
HindawiGeofluidsVolume 2018, Article ID 2178582, 2 pageshttps://doi.org/10.1155/2018/2178582
(i) A numerical simulation study of the migration lawof water-sand two-phase flow in broken rock mass
(ii) A two-phase flowback model for multiscale diffusionand flow in fractured shale gas reservoirs
(iii) Visualized experimental investigation on the gas-water distribution characteristics in intersectingfractures
(iv) Study on pulse characteristic of produced crudecomposition in CO2 flooding pilot test
(v) Investigating multiphase flow phenomena in fine-grained reservoir rocks: insights from using ethanepermeability measurements over a range of porepressures
(3) Part C: hydraulic fracturing mechanics
(i) Evolution of friction and permeability in a proppedfracture under shear
(ii) Back analysis of rock hydraulic fracturing by cou-pling numerical model and computational intelli-gent technology
(iii) Brittleness evaluation of shale based on the Braziliansplitting test
(4) Part D: issues related to gas production
(i) Research on rapid identification and evaluationtechnology for gas formation while underbalanceddrilling
(ii) Methane extraction from abandoned mines bysurface vertical wells: a case study in China
(iii) Lateral percolation and its effect on shale gas accumu-lation on the basis of complex tectonic background
(iv) Effects of formation dip on gas productionfrom unconfined marine hydrate-bearing sedimentsthrough depressurization
Acknowledgments
This special issue was supported by the FundamentalResearch Funds for the Central Universities (2017QNA06).We would like to thank all authors for their valuable contri-butions and all reviewers for their collaboration in providingrigorous peer-reviewed comments that greatly improved theaccepted articles in this special issue.
Tongqiang XiaEgor Dontsov
Zhongwei ChenFengshou Zhang
Mingyao WeiXiangzhao Kong
2 Geofluids
Hindawiwww.hindawi.com Volume 2018
Journal of
ChemistryArchaeaHindawiwww.hindawi.com Volume 2018
Marine BiologyJournal of
Hindawiwww.hindawi.com Volume 2018
BiodiversityInternational Journal of
Hindawiwww.hindawi.com Volume 2018
EcologyInternational Journal of
Hindawiwww.hindawi.com Volume 2018
Hindawiwww.hindawi.com
Applied &EnvironmentalSoil Science
Volume 2018
Forestry ResearchInternational Journal of
Hindawiwww.hindawi.com Volume 2018
Hindawiwww.hindawi.com Volume 2018
International Journal of
Geophysics
Environmental and Public Health
Journal of
Hindawiwww.hindawi.com Volume 2018
Hindawiwww.hindawi.com Volume 2018
International Journal of
Microbiology
Hindawiwww.hindawi.com Volume 2018
Public Health Advances in
AgricultureAdvances in
Hindawiwww.hindawi.com Volume 2018
Agronomy
Hindawiwww.hindawi.com Volume 2018
International Journal of
Hindawiwww.hindawi.com Volume 2018
MeteorologyAdvances in
Hindawi Publishing Corporation http://www.hindawi.com Volume 2013Hindawiwww.hindawi.com
The Scientific World Journal
Volume 2018Hindawiwww.hindawi.com Volume 2018
ChemistryAdvances in
Scienti�caHindawiwww.hindawi.com Volume 2018
Hindawiwww.hindawi.com Volume 2018
Geological ResearchJournal of
Analytical ChemistryInternational Journal of
Hindawiwww.hindawi.com Volume 2018
Submit your manuscripts atwww.hindawi.com
![Fluid Flow[1]](https://static.fdocuments.us/doc/165x107/577d38c01a28ab3a6b986b59/fluid-flow1.jpg)
