Research Summary
Enhanced oil recovery, unconventional gas recovery, theory of gas injection processes, geothermal energy and well testing.
In the News
Research Keywords
These keywords and phrases come from the publications and other research output of this person. See other researchers related to these topics by clicking on any keyword.
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
Relationship Between Residual Saturations and Wettability Using Pore-Network Modeling
Purswani, P., Johns, R. T. & Karpyn, Z. T., Apr 2024, In: SPE Journal. 29, 4, p. 2004-2013 10 p.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
Reliable Equivalent Alkane Carbon Number Determination for Dead and Live Crudes in Microemulsion Systems
Yoga, H. F., Gasimli, N. R. & Johns, R. T., Sep 2024, In: SPE Journal. 29, 9, p. 4935-4949 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