Roland T Okwen

2024

Determining the brine extraction well type, location, and rate for optimal pressure and carbon dioxide plume management

Yang, F. & Okwen, R., Jan 2024, In: Gas Science and Engineering. 121, 205174.

Research output: Contribution to journal › Article › peer-review

Open Access

2023

Computed Tomography Scanning and Geophysical Measurements of the CarbonSAFE Seal Integrity Wells in the Illinois Basin

Paronish, T. J., Mitchell, N., Brown, S. R., Pohl, M., Crandall, D., Blakley, C. S., Korose, C. P. & Okwen, R., Mar 20 2023, National Energy Technology Laboratory. (DOE/NETL Technical Report; no. 2023/4323)

Research output: Book/Report/Conference proceeding › Technical report

Open Access

Computed Tomography Scanning and Geophysical Measurements of the One Earth Energy Well 1 Core

Crandall, D., Gill, M. K., Paronish, T. J., Brown, S. R., Mitchell, N., Jarvis, K., Moore, J. E., Blakley, C., Okwen, R., Korose, C. & Carman, C., Mar 27 2023, National Energy Technology Laboratory. 64 p. (DOE/NETL Technical Report; no. 2023/3847)

Research output: Book/Report/Conference proceeding › Technical report

Open Access

2022

Wabash CarbonSAFE Static and Dynamic Modeling, Task 9.0

Dessenberger, R., Okwen, R., Khosravi, M., Frailey, S., Damico, J. & Carman, C., 2022, Univ. of Illinois at Urbana-Champaign, IL (United States); Illinois State Geological Survey.

Research output: Book/Report/Conference proceeding › Technical report

2021

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

Babarinde, O., Okwen, R., Frailey, S., Yang, F., Whittaker, S. & Sweet, D., Jul 2021, In: International Journal of Greenhouse Gas Control. 109, 103393.

Research output: Contribution to journal › Article › peer-review

Challenges of designing, operating, and managing brine extraction at a carbon dioxide storage site

Okwen, R. T. & Frailey, S. M., Jul 2021, In: International Journal of Greenhouse Gas Control. 109, 103354.

Research output: Contribution to journal › Article › peer-review

Open Access

2020

Assessment of Geothermal Energy Extraction from the Mt. Simon Sandstone at University of Illinois at Urbana-Champaign Using a Doublet Well System

Okwen, R., Yang, F., Lin, Z., Lin, J. & Stark, T., 2020, Proceedings, 45th Workshop on Geothermal Reservoir Engineering. Vol. SGP-TR-216. 12 p.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Feasibility of Deep Direct-Use for District-Scale Applications in a Low-Temperature Sedimentary Basin

Stumpf, A. J., Frailey, S. M., Okwen, R. T., Lu, Y., Holcomb, F. H., Tinjum, J. M. & Lin, Y. F., 2020, Proceedings, 45thWorkshop on Geothermal Reservoir Engineering. Vol. SGP-TR-216.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Geothermal Heat Recovery Complex: Large-Scale, Deep Direct-Use System in a Low-Temperature Sedimentary Basin: FINAL REPORT, 2017-2019

Lin, Y. F., Stumpf, A., Frailey, S., Okwen, R., Lu, Y., Holcomb, F., Tinjum, J., Stark, T., Damico, J. R., Elrick, S., Fisher, K., Fu, W., Garner, D., Hammock, C., Kirksey, J., Korose, C., Lin, J., Lin, Z., McKaskle, R. & Nelson, J. & 5 others, Salih, H., Thomas, L., Urlaub, J., Vance, A. & Yang, F., 2020, U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Geothermal Technologies Office.

Research output: Book/Report/Conference proceeding › Technical report

Open Access

2018

An Operations Perspective on Injectivity and Capacity

Frailey, S., Okwen, R. T. & Yang, F., 2018, 14th Greenhouse Gas Control Technologies Conference Melbourne 21-26 October 2018 (GHGT-14). Social Science Research Network, 14 p.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Can CO2 enhanced oil recovery give new life to Illinois Basin fields?

Ellett, K. M. & Okwen, R. T., 2018, Abstracts with Programs - Geological Society of America. Vol. 50:6.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Challenging Geostatistical Methods To Represent Heterogeneity in CO₂ Reservoirs Under Residual Trapping

Damico, J. R., Ritzi, R. W., Gershenzon, N. I. & Okwen, R. T., 2018, In: Environmental and Engineering Geoscience. 24, 4, p. 357-373 17 p.

Research output: Contribution to journal › Article › peer-review

Feasibility of a deep direct-use geothermal system at the University of Illinois Urbana-Champaign

Stumpf, A., Damico, J., Okwen, R., Stark, T., Elrick, S., John Nelson, W., Lu, Y., Holcomb, F., Tinjum, J., Yang, F., Frailey, S. & Lin, Y. F., 2018, Geothermal's Role in Today's Energy Market - Geothermal Resources Council 2018 Annual Meeting, GRC 2018. Geothermal Resources Council, p. 227-248 22 p. (Transactions - Geothermal Resources Council; vol. 42).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Modeling commercial-scale CO₂ injection in Mt. Simon Sandstone near Decatur, IL storage sites

Yang, F., Babarinde, O. O., Okwen, R., Frailey, S. M. & Whittaker, S. G., 2018.

Research output: Contribution to conference › Paper › peer-review

Modeling Commercial-Scale CO₂ Injection in Mt. Simon Sandstone Near Decatur, IL Storage Sites

Yang, F., Babarinde, O., Okwen, R., Frailey, S. & Whittaker, S., 2018, 14th Greenhouse Gas Control Technologies Conference Melbourne 21-26 October 2018. Social Science Research Network, 11 p.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Thick Siliciclastic Brownfield ROZ: Modeling Development Strategies for CO₂-EOR and Storage

Frailey, S. M., Okwen, R. & Yang, F., 2018, IEAGHG Modelling and Risk Management Combined Network Meeting. IEA Greenhouse Gas R&D Programme

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2017

Capillary trapping of CO₂ in heterogeneous reservoirs during the injection period

Gershenzon, N. I., Ritzi, R. W., Dominic, D. F., Mehnert, E. & Okwen, R. T., Apr 1 2017, In: International Journal of Greenhouse Gas Control. 59, p. 13-23 11 p.

Research output: Contribution to journal › Article › peer-review

Open Access

CO₂ trapping in reservoirs with fluvial architecture: Sensitivity to heterogeneity in permeability and constitutive relationship parameters for different rock types

Gershenzon, N. I., Ritzi, R. W., Dominic, D. F., Mehnert, E., Okwen, R. T. & Patterson, C., 2017, In: Journal of Petroleum Science and Engineering. 155, p. 89-99 11 p.

Research output: Contribution to journal › Article › peer-review

Open Access

2016

CO2 trapping in reservoirs with fluvial sedimentary architecture

Gershenzon, N. I., Ritzi, R. W., Dominic, D. F., David F., O., Mehnert, E. & Patterson, C., 2016, Abstracts with Programs - Geological Society of America. 5 ed. Champaign, IL, Vol. 48.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Comparison of CO₂ trapping in highly heterogeneous reservoirs with Brooks-Corey and van Genuchten type capillary pressure curves

Gershenzon, N. I., Ritzi, R. W., Dominic, D. F., Mehnert, E. & Okwen, R. T., Oct 1 2016, In: Advances in Water Resources. 96, p. 225-236 12 p.

Research output: Contribution to journal › Article › peer-review

Open Access

Effect of model complexity and relative permeability inputs on geologic carbon sequestration modeling

Mehnert, E., Chen, Y., Gershenzon, N. I., Kohanpur, A. H., Valocchi, A. J., Okwen, R. T., Patterson, C., Ritzi, J. & Robert W., 2016, Abstracts with Programs - Geological Society of America. Champaign, IL, Vol. 48:5.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Geochemical modeling of Mt. Simon brine extraction and reinjection for plume pressure management

Berger, P. M., Okwen, R. T. & Dastgheib, S. A., 2016, Abstracts with Programs - Geological Society of America. Champaign, IL, Vol. 48:5.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Liquid CO₂ EOR potential in the Illinois Basin: Results of the Mumford Hills pilot

Okwen, R. T. & Frailey, S. M., 2016, Society of Petroleum Engineers - SPE Improved Oil Recovery Conference. Society of Petroleum Engineers, Vol. 2016. p. 1-13 (SPE - DOE Improved Oil Recovery Symposium Proceedings; vol. 2016-January).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2015

Assessing CO2 EOR Potential of Three Strategically Located Oil Fields in the Illinois Basin

Damico, J. R., Monson, C. C., Frailey, S. M., Lasemi, Y., Webb, N. D., Grigsby, N. P., Yang, F., Okwen, R. T., Zhou, R., Freiburg, J. T. & Berger, P. M., 2015, 2015 AAPG Eastern Section Meeting. Indianapolis: American Association of Petroleum Geologists

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Capillary trapping of CO (sub 2) in reservoirs with fluvial architecture

Ritzi, R. W., Gershenzon, N. I., Dominic, D. F., Mehnert, E. & Okwen, R. T., 2015, Abstracts with Programs - Geological Society of America. Boulder, CO: Geological Society of America, Vol. 47. p. 322

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

CO2 trapping in reservoirs with fluvial architecture; sensitivity to heterogeneity and hysteresis in characteristic relationships for different rock types

Gershenzon, N. I., Ritzi, R. W., Dominic, D. F., Mehnert, E. & Okwen, R. T., 2015, AGU 2015 fall meeting. Vol. 2015.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Development of Dimensionless Performance Curves to Estimate CO2 EOR of Illinois Basin Oil Reservoirs

Okwen, R. T. & Frailey, S. M., 2015.

Research output: Contribution to conference › Other › peer-review

Influence of small-scale fluvial architecture on CO₂ trapping processes in deep brine reservoirs

Gershenzon, N. I., Ritzi, R. W., Dominic, D. F., Soltanian, M., Mehnert, E. & Okwen, R. T., Oct 2015, In: Water Resources Research. 51, 10, p. 8240-8256 17 p.

Research output: Contribution to journal › Article › peer-review

Open Access

The impact of model complexity on CO2 saturation and mass balance

Mehnert, E., Gershenzon, N. I., Kohanpur, A. H., Okwen, R. T., Patterson, C., Ritzi, R. W. & Valocchi, A. J., 2015, AGU 2015 fall meeting. Vol. 2015.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2014

Assessing Reservoir Depositional Environments to Develop & Quantify Improvements in CO2 Storage Efficiency

Okwen, R., Frailey, S. & Leetaru, H., 2014, Carbon Storage R&D Project Review Meeting, Developing the Technologies and Infrastructure for CCS, August 12–14, 2014, Pittsburgh, Pennsylvania.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Basin-scale modeling for CO₂ sequestration in the basal sandstone reservoir of the Illinois Basin-improving the geologic model

Mehnert, E., Damico, J., Frailey, S., Leetaru, H., Okwen, R., Storsved, B. & Valocchi, A., 2014, In: Energy Procedia. 63, p. 2949-2960 12 p.

Research output: Contribution to journal › Conference article › peer-review

Open Access

Effect of geologic depositional environment on CO₂ storage efficiency

Okwen, R., Yang, F. & Frailey, S., 2014, In: Energy Procedia. 63, p. 5247-5257 11 p.

Research output: Contribution to journal › Conference article › peer-review

Open Access

Quantifying CO (sub 2) storage efficiencies of geologic depositional environments

Okwen, R. T., Monson, C. C., Lasemi, Y. & Grigsby, N. P., 2014, Abstracts - AAPG, Eastern Section Meeting. American Association of Petroleum Geologists, Vol. 43.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Transport modeling at multiple scales for the Illinois Basin-Decatur Project

Roy, W. R., Mehnert, E., Berger, P. M., Damico, J. R. & Okwen, R. T., Oct 2014, In: Greenhouse Gases: Science and Technology. 4, 5, p. 645-661 17 p.

Research output: Contribution to journal › Article › peer-review

2013

Assessing Reservoir Depositional Environments to Develop and Quantify Improvements in CO2 Storage Efficiency: A Reservoir Simulation Approach

Okwen, R., Frailey, S. & Leetaru, H., 2013, Carbon Storage R&D Project Review Meeting August 20-22, 2013.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Development of a Basin-scale Model for CO2 Sequestration in the Basal Sandstone Reservoir of the Illinois Basin - Issues, Approach and Preliminary Results

Mehnert, E., Damico, J., Frailey, S., Leetaru, H., Lin, Y. F., Okwen, R., Adams, N., Storsved, B. & Valocchi, A., 2013, In: Energy Procedia. 37, p. 3850-3858 9 p.

Research output: Contribution to journal › Conference article › peer-review

Open Access

2012

Alkaline-surfactant-polymer flood application for enhanced oil recovery has potential for significant recovery of remaining reserves in the mature Lawrence Field, Illinois

Grube, J. P., Blakley, C. S., Damico, J. R., Johanek, P. M., Madhavan, V., Okwen, R. T., Seyler, B. J. & Webb, N. D., 2012, Abstracts: Annual Meeting - American Association of Petroleum Geologists. Tulsa, OK: American Association of Petroleum Geologists, Vol. 2012.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Basin-scale modeling of CO (sub 2) sequestration in the Illinois Basin; progress report

Mehnert, E., Damico, J., Frailey, S., Leetaru, H., Lin, Y.-F., Okwen, R., Adams, N., Storsved, B. & Valocchi, A., 2012, Midwest Carbon Sequestration Science Conference.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

CO₂ Storage and Enhanced Oil Recovery: Bald Unit Test Site, Mumford Hills Oil Field, Posey County, Indiana

Frailey, S. M., Krapac, I. G., Damico, J. R., Okwen, R. T. & McKaskle, R. W., 2012, Illinois State Geological Survey. 190 p.

Research output: Book/Report/Conference proceeding › Technical report

Open Access

CONJUNCTIVE INJECTION OF CO2 AND WASTEWATER IN A HETEROGENEOUS POROUS FORMATION

Okwen, R. T., Thomas, M., Stewart, M. T., Trotz, M. & Cunningham, J. A., 2012, In: Technology & Innovation. 14, 2, p. 143--151

Research output: Contribution to journal › Article › peer-review

CO₂ storage and enhanced oil recovery: Bald Unit test site, Mumford Hills Oil Field, Posey County, Indiana

Frailey, S. M., Krapac, I. G., Damico, J. R., Okwen, R. T. & McKaskle, R. W., 2012, Champaign, Ill.: Illinois State Geological Survey, Prairie Research Institute, University of Illinois. (Open file series 2012-5)

Research output: Book/Report/Conference proceeding › Technical report

Open Access

CO₂ storage and enhanced oil recovery: Sugar Creek Oil Field test site, Hopkins County, Kentucky

Frailey, S. M., Parris, T. M., Damico, J. R., Okwen, R. T. & McKaskle, R. W., 2012, Champaign, Ill.: Illinois State Geological Survey, Prairie Research Institute, University of Illinois. (Open file series 2012-4)

Research output: Book/Report/Conference proceeding › Technical report

Open Access

Near-Well Pressure Distribution of CO2 Injection in a Partially Penetrating Well

Mehnert, E. & Okwen, R. T., 2012, Proceedings of the TOUGH Symposium. p. 681-688

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2011

Roland T Okwen

Research output

Search results