| Influence of small‐scale fluvial architecture on CO2 trapping processes in deep brine reservoirs NI Gershenzon, RW Ritzi Jr, DF Dominic, M Soltanian, E Mehnert, ... Water Resources Research 51 (10), 8240-8256, 2015 | 114 | 2015 |
| Analytical solution for estimating storage efficiency of geologic sequestration of CO2 RT Okwen, MT Stewart, JA Cunningham International Journal of Greenhouse Gas Control 4 (1), 102-107, 2010 | 107 | 2010 |
| Capillary trapping of CO2 in heterogeneous reservoirs during the injection period NI Gershenzon, RW Ritzi Jr, DF Dominic, E Mehnert, RT Okwen International Journal of greenhouse gas control 59, 13-23, 2017 | 73 | 2017 |
| Formation Damage by CO2-Induced Asphaltene Precipitation RT Okwen SPE International Conference and Exhibition on Formation Damage Control, SPE …, 2006 | 55 | 2006 |
| Comparison of CO2 trapping in highly heterogeneous reservoirs with Brooks-Corey and van Genuchten type capillary pressure curves NI Gershenzon, RW Ritzi Jr, DF Dominic, E Mehnert, RT Okwen Advances in Water Resources 96, 225-236, 2016 | 45 | 2016 |
| Temporal variations in near-wellbore pressures during CO2 injection in saline aquifers RT Okwen, MT Stewart, JA Cunningham International Journal of Greenhouse Gas Control 5 (5), 1140-1148, 2011 | 40 | 2011 |
| Remote sensing of temperature variations around major power plants as point sources of heat R Okwen, R Pu, J Cunningham International journal of remote sensing 32 (13), 3791-3805, 2011 | 31 | 2011 |
| CO2 trapping in reservoirs with fluvial architecture: Sensitivity to heterogeneity in permeability and constitutive relationship parameters for different rock types NI Gershenzon, RW Ritzi Jr, DF Dominic, E Mehnert, RT Okwen, ... Journal of Petroleum Science and Engineering 155, 89-99, 2017 | 30 | 2017 |
| Effect of Well Orientation (Vertical vs. Horizontal) and Well Length on the Injection of CO2 in Deep Saline Aquifers R Okwen, M Stewart, J Cunningham Transport in porous media 90, 219-232, 2011 | 28 | 2011 |
| Effect of geologic depositional environment on CO2 storage efficiency R Okwen, F Yang, S Frailey Energy Procedia 63, 5247-5257, 2014 | 27 | 2014 |
| Basin-scale modeling for CO2 sequestration in the basal sandstone reservoir of the Illinois Basin—Improving the geologic model E Mehnert, J Damico, S Frailey, H Leetaru, R Okwen, B Storsved, ... Energy Procedia 63, 2949-2960, 2014 | 12 | 2014 |
| Analytical model for screening potential CO2 repositories RT Okwen, MT Stewart, JA Cunningham Computational Geosciences 15, 755-770, 2011 | 12 | 2011 |
| CO2 storage and enhanced oil recovery: Sugar Creek Oil Field test site, Hopkins County, Kentucky S Frailey, T Parris, J Damico, R Okwen, R McKaskle Univ. of Illinois at Urbana-Champaign, IL (United States), 2013 | 10 | 2013 |
| Sequestration and enhanced coal bed methane: Tanquary Farms test site, Wabash County, Illinois S Frailey, T Parris, J Damico, R Okwen, R McKaskle, C Monson, ... Univ. of Illinois at Urbana-Champaign, IL (United States), 2012 | 10 | 2012 |
| A workflow to assess the efficacy of brine extraction for managing injection-induced seismicity potential using data from a CO2 injection site near Decatur, Illinois O Babarinde, R Okwen, S Frailey, F Yang, S Whittaker, D Sweet International Journal of Greenhouse Gas Control 109, 103393, 2021 | 9 | 2021 |
| Transport modeling at multiple scales for the Illinois Basin–Decatur Project WR Roy, E Mehnert, PM Berger, JR Damico, RT Okwen Greenhouse Gases: Science and Technology 4 (5), 645-661, 2014 | 7 | 2014 |
| CO2 storage and enhanced oil recovery: Bald Unit test site, Mumford Hills oil field, Posey County, Indiana SM Frailey, IG Krapac, JR Damico, RT Okwen, RW McKaskle Illinois State Geological Survey, Champaign, IL (United States), 2012 | 6 | 2012 |
| CO2 storage and enhanced oil recovery: Bald Unit test site SM Frailey, IG Krapac, JR Damico, RT Okwen, RW McKaskle Mumford Hills Oil Field, Posey County, Indiana, 2012 | 6 | 2012 |
| Geothermal Heat Recovery Complex: Large-Scale, Deep Direct-Use System in a Low-Temperature Sedimentary Basin YF Lin, A Stumpf, S Frailey, R Okwen, Y Lu, F Holcomb, J Tinjum, T Stark, ... Champaign, IL: Illinois State Geological Survey, Prairie Research Institute, 2020 | 5 | 2020 |
| Development of a Basin-scale Model for CO2 Sequestration in the Basal Sandstone Reservoir of the Illinois Basin-Issues, Approach and Preliminary Results E Mehnert, J Damico, S Frailey, H Leetaru, YF Lin, R Okwen, N Adams, ... Energy Procedia 37, 3850-3858, 2013 | 5 | 2013 |
