By Professor Ryan T. Armstrong

Conference Papers

Mostaghimi P; Armstrong R; Gerami A; Hu Y; Jing Y; Kamali F; Liu M; Liu Z; Lu X; Lamei Ramandi H; Zamani A; Zhang Y, 2016, 'Pore Scale Characterisation of Coal: An Unconventional Challenge', in Society of Petroleum Engineers, Society of Petroleum Engineers (SPE), Abu Dhabi, presented at Zhang, Abu Dhabi, 07 November 2016 - 10 November 2016, http://dx.doi.org/10.2118/183411-MS

Armstrong RT; McClure JE; Berill MA; Rücker M; Schlüter S; Berg S, 2016, 'Flow regimes during immiscible displacement', in Petrophysics, SOC PETROPHYSICISTS & WELL LOG ANALYSTS-SPWLA, 8866 GULF FREEWAY, STE 320, HOUSTON, TX 77017 USA, Snowmass, CO, pp. 10 - 18, presented at SCA International Symposium, Snowmass, CO, 21 August 2016 - 26 August 2016, https://www.onepetro.org/journals/Petrophysics/58/01

Armstrong RT, 2016, 'Combining high-resolution with larger volume images for improved characterization of mudstone reservoirs', Austin Texas, presented at SPWLA 57th Annual Logging Symposium, Austin Texas, 25 June 2016 - 29 June 2016

Newby L; Armstrong R; Maphanga G, 2016, 'Analysis of a slope failure above critical infrastructure', in Proceedings of the 1st Southern African Geotechnical Conference 2016, pp. 335 - 340, http://dx.doi.org/10.1201/b21335-59

Armstrong RT, 2015, 'A Combined Micro-CT Imaging/Microfluidic Approach for Understating Methane Recovery in Coal Seam Gas Reservoirs', SanFrancisco, presented at AGU Fall Meeting Abstracts, SanFrancisco, 14 December 2015 - 18 December 2015

Armstrong RT, 2015, 'Using Microfluidics for Visualisation of Displacement Mechanisms on Pore Network Models', SanFrancisco, presented at AGU Fall Meeting, SanFrancisco, 14 December 2015 - 18 December 2015

Ramandi HL; Armstrong RT; Mostaghimi P; Saadatfar M; Pinczewsk WV, 2015, 'X-ray micro-computed tomography imaging for coal characterization', in Society of Petroleum Engineers - SPE Asia Pacific Unconventional Resources Conference and Exhibition, Brisbane, Australia, presented at SPE Asia Pacific Unconventional Resources Conference and Exhibition, Brisbane, Australia, 09 November 2015 - 11 November 2015, https://www.onepetro.org/conference-paper/SPE-177017-MS

Ramandi HL; Armstrong RT; Mostaghimi P; Saadatfar M; Pinczewsk WV; Lamei Ramandi H, 2015, 'X-ray micro-computed tomography imaging for coal characterization', in Society of Petroleum Engineers SPE Asia Pacific Unconventional Resources Conference and Exhibition, SPE, presented at SPE Asia Pacific Unconventional Resources Conference and Exhibition, 09 November 2015 - 11 November 2015, http://dx.doi.org/10.2118/177017-ms

Armstrong RT, 2015, 'Microfluidic experiments for understanding transport phenomena in coal seam reservoirs', Newfoundland, Canada, presented at Society of Core Analysts, Newfoundland, Canada, 16 August 2015 - 21 August 2015

Armstrong RT, 2015, 'The fate of oil clusters during fractional flow: Trajectories in the saturation-capillary number space', St. Johns Newfoundland, presented at Society of Core Analyst, St. Johns Newfoundland, 16 August 2015 - 21 August 2015

Unsal E; Broens M; Buijse M; Boersma D; Makurat A; Armstrong RT, 2015, 'Visualization of in situ microemulsion phase', in Society of Petroleum Engineers - SPE Asia Pacific Enhanced Oil Recovery Conference, EORC 2015, Kuala Lumpur, Malaysia, pp. 897 - 903, presented at PE Asia Pacific Enhanced Oil Recovery Conference, EORC 2015, Kuala Lumpur, Malaysia, 11 August 2015 - 14 August 2015, https://www.onepetro.org/download/conference-paper/SPE-174651-MS?id=conference-paper/SPE-174651-MS

Armstrong RT, 2015, 'Pore-Scale imaging and modeling of coal properties', Melbourne, Australia, presented at APPEA, Melbourne, Australia, 17 May 2015 - 20 May 2015

Fogden A; Olson T; Cheng Q; Middleton J; Kingston A; Turner M; Sheppard A; Armstrong R, 2015, 'Dynamic micro-CT imaging of diffusion in unconventionals', in Society of Petroleum Engineers - Unconventional Resources Technology Conference, URTeC 2015, Society of Petroleum Engineers (SPE), presented at Unconventional Resources Technology Conference, http://dx.doi.org/10.2118/178617-ms

Fogden A; Olson T; Cheng Q; Middleton J; Kingston A; Turner M; Sheppard A; Armstrong R, 2015, 'Dynamic micro-CT imaging of diffusion in unconventionals', in Society of Petroleum Engineers Unconventional Resources Technology Conference Urtec 2015, http://dx.doi.org/10.2118/178617-ms

Mostaghimi P; Armstrong RT; Gerami A; Ebrahimi Warkiani M; Lamei ramandi H; Pinczewski WV, 2015, 'Micro-CT imaging and microfluidics for understanding flow in coal seam reservoirs', in International Symposium of the Society of Core Analysts, SCA, SCA

Armstrong RT, 2014, 'Interfacial velocities and the resulting velocity field during a Haines jump', Avignon France, presented at Society of Core Analysts, Avignon France, 08 September 2014 - 11 September 2014

Armstrong RT, 2014, 'ONSET OF OIL MOBILIZATION AND NON - WETTING PHASE CLUSTER SIZE DISTRIBUTION', Avignon France, presented at Society of Core Analysts, Avignon France, 08 September 2014 - 11 September 2014

Armstrong RT, 2013, 'DIRECT HYDRODYNAMIC SIMULATION OF MULTIPHASE FLOW IN POROUS ROCK', Napp Valley California, presented at Society of Core Analysts, Napp Valley California, 16 September 2013 - 19 September 2013

Armstrong RT, 2013, 'Multiphase flow in porous rock imaged under dynamic flow conditions with fast X-ray computed tomography', Napa Valley, California, presented at Society of Core Analysts, Napa Valley, California, 16 September 2013 - 19 September 2013

Armstrong RT, 2013, 'Application of digital rock technology for chemical EOR screening', Kuala Lumpur, Malaysia, presented at SPE enhanced oil recovery conference, Kuala Lumpur, Malaysia, 02 July 2013 - 04 July 2013

Armstrong RT, 2012, 'A Pore Scale Explanation for Displacement Efficiency', SanFrancisco, presented at AGU Fall Meeting, SanFrancisco, 10 December 2012 - 14 December 2012

Armstrong RT, 2012, 'Emulsion formation at the Pore-Scale', SanFrancisco, presented at AGU Fall Meeting, SanFrancisco, 10 December 2012 - 14 December 2012

Armstrong RT, 2012, 'Optimization geological sequestration of CO2 by capillary trapping mechanisms', SanFrancisco, presented at AGU Fall Meeting, SanFrancisco, 10 December 2012 - 14 December 2012

Armstrong RT; Pentland CH; Berg S; Hummel J; Lichau D; Bernard L, 2012, 'ESTIMATION OF CURVATURE FROM MICRO-CT LIQUID-LIQUID DISPLACEMENT STUDIES WITH PORE SCALE RESOLUTION', in Society of Core Analyst

Dominy SC; Platten IM; Howard LE; Elangovan P; Armstrong R; Minnitt RCA; Abel RL, 2011, 'Characterisation of gold ores by X-ray computed tomography - Part 2: Applications to the determination of gold particle size and distribution', in Geomet 2011 1st Ausimm International Geometallurgy Conference 2011, pp. 293 - 309

Wu Y; Ajo-Franklin J; Armstrong R; Hubbard S, 2010, 'Noninvasive geophysical imaging of ureolytic CaCO3 precipitation', in GEOCHIMICA ET COSMOCHIMICA ACTA, PERGAMON-ELSEVIER SCIENCE LTD THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND, pp. A1149 - A1149, PERGAMON-ELSEVIER SCIENCE LTD THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND

Wildenschild D; Armstrong RT; Jansik DP; Wood BD, 2009, 'Using synchrotron-based microtomographic imaging to characterize biofilm architecture in porous media', in EGU General Assembly Conference Abstracts, pp. 6369 - 6369

Armstrong R; Stacey TR, 2003, 'A review of information on the influence of plan curvature on rock slope stability and its effect on the volume of wedge failures', in 10th ISRM Congress, pp. 57 - 61

Preprints

Berg S; Armstrong R; Rücker M; Hansen A; Kjelstrup S; Bedeaux D, 2025, From Interface Dynamics to Darcy Scale Description of Multiphase Flow in Porous Media, http://dx.doi.org/10.31223/x5rb3t

Berg S; Armstrong RT; Rücker M; Hansen A; Kjelstrup S; Bedeaux D, 2025, From Interface Dynamics to Darcy Scale Description of Multiphase Flow in Porous Media, http://dx.doi.org/10.48550/arxiv.2510.19582

Bedeaux D; Kjelstrup S; Berg S; Alfazazi U; Armstrong RT, 2025, Fluctuation-dissipation theorems for multi-phase flow with memory in porous media, http://dx.doi.org/10.48550/arxiv.2502.11539

Moura M; Bedeaux D; Armstrong RT; Kjelstrup S, 2024, Fluctuation-dissipation theorems and the measurement of the Onsager coefficients for two-phase flow in porous media, http://dx.doi.org/10.48550/arxiv.2410.03661

Alzubaidi F; McClure JE; Pedersen H; Hansen A; Berg CF; Mostaghimi P; Armstrong RT, 2023, The impact of wettability on the co-moving velocity of two-fluid flow in porous media, http://arxiv.org/abs/2309.00362v1

Tang K; Bo Z; Li Z; Wang YD; McClure J; Su H; Mostaghimi P; Armstrong R, 2023, Controlled Ion Transport in the Subsurface: A Coupled Advection-Diffusion-Electromigration System, http://arxiv.org/abs/2308.04668v1

Tang K; Li Z; Wang YD; McClure J; Su H; Mostaghimi P; Armstrong R, 2023, A pore-scale model for electrokinetic in situ recovery of copper: the Influence of mineral occurrence, zeta potential, and electric potential, http://arxiv.org/abs/2303.17150v1

Rabbani A; Sun C; Babaei M; Niasar VJ; Armstrong RT; Mostaghimi P, 2022, DeepAngle: Fast calculation of contact angles in tomography images using deep learning, http://dx.doi.org/10.48550/arxiv.2211.15243

Spurin C; Berg S; Armstrong R; McClure J, 2022, Dynamic Mode Decomposition for Analyzing Dynamics in Multi-phase Flow in Porous Media, http://dx.doi.org/10.31223/x5065c

Alzubaidi F; Mostaghimi P; Niu Y; Armstrong RT; Mohammadi G; Berg S; McClure JE, 2022, Effective permeability of an immiscible fluid in porous media determined from its geometric state, http://arxiv.org/abs/2208.08027v2

McClure JE; Fan M; Berg S; Armstrong RT; Berg CF; Li Z; Ramstad T, 2022, Relative permeability as a stationary process: energy fluctuations in immiscible displacement, http://dx.doi.org/10.1063/5.0107149

Niu Y; Jackson SJ; Alqahtani N; Mostaghimi P; Armstrong RT, 2021, A comparative study of paired versus unpaired deep learning methods for physically enhancing digital rock image resolution, http://dx.doi.org/10.48550/arxiv.2112.08644

Jackson SJ; Niu Y; Manoorkar S; Mostaghimi P; Armstrong RT, 2021, Deep learning of multi-resolution X-Ray micro-CT images for multi-scale modelling, http://dx.doi.org/10.48550/arxiv.2111.01270

Higgs S; Da Wang Y; Sun C; Ennis-King J; Jackson S; Armstrong R; Mostaghimi P, 2021, In-situ hydrogen wettability characterisation for Underground Hydrogen Storage, http://dx.doi.org/10.31223/x54045

Sun C; McClure J; Berg S; Mostaghimi P; Armstrong RT, 2021, Universal description of wetting on multiscale surfaces using integral geometry, http://dx.doi.org/10.48550/arxiv.2108.09445

McClure JE; Berg S; Armstrong RT, 2020, Capillary fluctuations and energy dynamics for flow in porous media, http://dx.doi.org/10.48550/arxiv.2012.09206

McClure JE; Berg S; Armstrong RT, 2020, Thermodynamics of fluctuations based on time-and-space averages, http://dx.doi.org/10.48550/arxiv.2012.09139

Sun C; McClure JE; Mostaghimi P; Herring AL; Meisenheimer DE; Wildenschild D; Berg S; Armstrong RT, 2020, Characterization of wetting using topological principles, http://dx.doi.org/10.48550/arxiv.2005.02873

Da Wang Y; Chung T; Armstrong RT; Mostaghimi P, 2020, ML-LBM: Machine Learning Aided Flow Simulation in Porous Media, http://dx.doi.org/10.48550/arxiv.2004.11675

Da Wang Y; Shabaninejad M; Armstrong RT; Mostaghimi P, 2020, Physical Accuracy of Deep Neural Networks for 2D and 3D Multi-Mineral Segmentation of Rock micro-CT Images, http://dx.doi.org/10.48550/arxiv.2002.05322

Sun C; McClure JE; Mostaghimi P; Herring AL; Shabaninejad M; Berg S; Armstrong RT, 2019, Linking continuum-scale state of wetting to pore-scale contact angles in porous media, http://dx.doi.org/10.48550/arxiv.1910.00484

Wang YD; Armstrong RT; Mostaghimi P, 2019, Boosting Resolution and Recovering Texture of micro-CT Images with Deep Learning, http://dx.doi.org/10.1029/2019WR026052

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