Research Summary
Enhanced oil recovery, unconventional gas recovery, theory of gas injection processes, geothermal energy and well testing.
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Recent Publications
Impact of wettability on capillary phase trapping using pore-network modeling
Purswani, P., Johns, R. T. & Karpyn, Z. T., Feb 2024, In: Advances in Water Resources. 184, 104606.Research output: Contribution to journal › Article › peer-review
Predictive Model for Relative Permeability Using Physically-Constrained Artificial Neural Networks
Yoga, H. F., Johns, R. T. & Purswani, P., Feb 2024, In: SPE Journal. 29, 2, p. 928-942 15 p.Research output: Contribution to journal › Article › peer-review
Modeling of High-Pressure and High-Temperature Microemulsion Experiments using HLD-NAC-Based Equation of State
Magzymov, D., Johns, R. T., Hashim, H. & Dindoruk, B., Jun 2023, In: SPE Journal. 28, 3, p. 1202-1215 14 p.Research output: Contribution to journal › Article › peer-review
Fluid-Fluid Interfacial Area and Its Impact on Relative Permeability: A Pore Network Modeling Study
Mukherjee, S., Johns, R. T., Foroughi, S. & Blunt, M. J., Apr 2023, In: SPE Journal. 28, 2, p. 653-663 11 p.Research output: Contribution to journal › Article › peer-review
Evaluation of machine learning methodologies using simple physics based conceptual models for flow in porous media
Magzymov, D., Ratnakar, R. R., Dindoruk, B. & Johns, R. T., Dec 2022, In: Journal of Petroleum Science and Engineering. 219, 111056.Research output: Contribution to journal › Article › peer-review
Inclusion of variable characteristic length in microemulsion flash calculations
Magzymov, D. & Johns, R. T., Aug 2022, In: Computational Geosciences. 26, 4, p. 995-1010 16 p.Research output: Contribution to journal › Article › peer-review
Sensitivity Analysis of Fluid–Fluid Interfacial Area, Phase Saturation and Phase Connectivity on Relative Permeability Estimation Using Machine Learning Algorithms
Mukherjee, S. & Johns, R. T., Aug 2022, In: Energies. 15, 16, 5893.Research output: Contribution to journal › Article › peer-review
Comparative Study of Traditional and Deep-Learning Denoising Approaches for Image-Based Petrophysical Characterization of Porous Media
Tawfik, M. S., Adishesha, A. S., Hsi, Y., Purswani, P., Johns, R. T., Shokouhi, P., Huang, X. & Karpyn, Z. T., Jan 25 2022, In: Frontiers in Water. 3, 800369.Research output: Contribution to journal › Article › peer-review
Effect of oil chemistry on the performance of low-salinity waterflooding in carbonates: An integrated experimental approach
Tawfik, M. S., Karpyn, Z. T. & Johns, R. T., Dec 1 2022, In: Fuel. 329, 125436.Research output: Contribution to journal › Article › peer-review
Multicomponent diffusion modeling of cyclic solvent injection in ultratight reservoirs
Cronin, M., Emami-Meybodi, H. & Johns, R. T., Jun 2021, In: SPE Journal. 26, 3, p. 1213-1232 20 p.Research output: Contribution to journal › Article › peer-review
Measurement and modeling of minimum miscibility pressure: A state-of-the-art review
Dindoruk, B., Johns, R. & Orr, F. M., May 2021, In: SPE Reservoir Evaluation and Engineering. 24, 2, p. 367-389 23 p.Research output: Contribution to journal › Review article › peer-review
Capillary contact angle for the quartz-distilled water-normal decane interface at temperatures up to 200 °C
Duffy, T. S., Li, J., Johns, R. T. & Lvov, S. N., Jan 20 2021, In: Colloids and Surfaces A: Physicochemical and Engineering Aspects. 609, 125608.Research output: Contribution to journal › Article › peer-review
Modeling Contact Angle vs. Temperature for the Quartz-Water-Decane System
Duffy, T. S., Gamwo, I. K., Johns, R. T. & Lvov, S. N., Dec 2021, In: SPE Journal. 26, 6, p. 3668-3680 13 p.Research output: Contribution to journal › Article › peer-review
A new way of compositional simulation without phase labeling
Khorsandi, S., Li, L. & Johns, R. T., Apr 2021, In: SPE Journal. 26, 2, p. 940-958 19 p.Research output: Contribution to journal › Article › peer-review
Experimental analysis of alkali-brine-alcohol phase behavior with high acid number crude oil
Magzymov, D., Clemens, T., Schumi, B. & Johns, R. T., May 2021, In: SPE Reservoir Evaluation and Engineering. 24, 2, p. 390-408 19 p.Research output: Contribution to journal › Article › peer-review