Ryan M. Pollyea

Assistant Professor

My research interests are at the intersection of geofluids and energy resources, including geologic CO2 sequestration, hydrothermal fluid systems, and continental scale fluid regimes. I specialize in numerical models of nonisothermal multi-phase, multi-component fluid flow in fractured and porous media, high performance computing, stochastic reservoir simulation, and the application of terrestrial LiDAR to fracture network characterization. I am currently investigating reservoir geomechanics during carbon capture and sequestration in the Columbia River Basalt Group of southeast Washington State.


Ph.D., University of Idaho, 2012

B.S., University of Dayton, 1999

My current focus is understanding how mechanical and chemical processes influence formation permeability at reservoir scales. In pursuing this research, I am in the process of implementing fully a coupled thermal-hydro-chemical-mechanical numerical modeling framework for investigating these processes.

Current members of my research group include:

  • Wu Hao (Ph.D. student) is developing a numerical modeling experiment to quantify the effects of capillary pressure uncertainty during CO2 sequestration in reactive basalt reservoirs.
  • Richard Jayne (Ph.D. student) is studying the spatial correlation of high permeability basalt flow interiors in order to quantify the effects heterogeneity for CO2 sequestration in flood basalt reservoirs.
  • Gierzynski, A.O. and Pollyea, R.M. 2017. Three-phase CO2 flow in a basalt fracture network. Water Resources Research, Available online 13 October 2017. doi:10.1002/2017WR021126
  • Mohammadi, N., Taylor, J.E., and Pollyea, R.M. 2017. Spatiotemporal dynamics of public response to human-induced seismic perturbations.  In Proceedings of the 14th International Conference on Information Systems for Crisis Response and Management (ISCRAM), Eds. Comes, T., Bénaben, F., Hanacho, C., and Lauras, M. Albi, France. p. 666–672, May 21–24. ISSN:2411-3387. 
  • Pollyea, R.M. and Rimstidt, J.D. 2017. Rate equations for modeling carbon dioxide sequestration in basalt. Applied Geochemistry, Vol. 81, p. 53–62, May. doi:10.1016/j.apgeochem.2017.03.020.
  • Jung, Y., Pau, G.S.H., Finsterle, S., and Pollyea, R.M. TOUGH3: A new efficient version of the TOUGH suite of multiphase flow and transport simulators. Computers & Geosciences, Available online 23 September 2016. doi:10.1016/j.cageo.2016.09.009.
  • Jayne, R.S., Pollyea, R.M., Dodd, J.P., Olson, E.J., and Swanson, S.K. 2016. Spatial and temporal constraints on regional-scale groundwater flow in the Pampa del Tamarugal Basin, Atacama Desert, Chile. Hydrogeology Journal, Vol. 24, No. 8, p. 1921–1937, December. doi:10.1007/s10040-016-1454-3.
  • Pollyea, R.M. 2016. Influence of relative permeability on injection pressure and plume configuration during CO2 injections in a mafic reservoir. International Journal of Greenhouse Gas Control, Vol. 47, p. 7-17, March. doi:10.1016/j.ijggc.2015.12.025.
  • Pollyea, R.M., Van Dusen, E.W., and Fischer, M.P. 2015. Topography driven fluid flow within orogenic wedges: Effects of taper angle and depth-dependent permeability. Geosphere, Vol. 11, No. 5, p. 1427-1437, October. doi:10.1130/GES01120.1.
  • Pollyea, R.M., Fairley, J.P., Podgorney, R.K., and McLing, T.L. 2014. Physical constraints on geologic CO2 sequestration in low-volume basalt formations. GSA Bulletin. Vol. 126, No. 3/4, p. 344-351, March/April. doi:10.1130/B30874.1.
  • Pollyea, R.M., Fairley, J.P., Podgorney, R.K., and McLing, T.L. 2013. A field sampling strategy for semivariogram inference of fractures in rock outcrops. Stochastic Environmental Research and Risk Assessment, Vol. 27, No. 7, p. 1735-1740, October. doi:10.1007/s00477-013-0710-5.
  • Pollyea, R.M. and Fairley, J.P. 2012. Implications of spatial reservoir uncertainty for CO2 sequestration in low-volume basalt. Hydrogeology Journal, Vol. 20, No. 4, p. 689-699, April. doi:10.1007/s10040-012-0487-1
  • Pollyea, R.M. and Fairley, J.P. 2012. Experimental evaluation of terrestrial LiDAR-based surface roughness estimates. Geosphere, Vol. 8, No. 1, p. 1–7, February. doi:10.1130/GES00733.1
  • Pollyea, R.M. and Fairley, J.P. 2011. Estimating surface roughness of terrestrial laser scan data using orthogonal distance regression. Geology, Vol. 39, No. 7, p. 623–626, July. doi:10.1130/G32078.1
  • GEOS4804/5804G: Groundwater Hydrology (Spring 2017)
  • GEOS6604: Reactive Transport Modeling (most recent offering Spring 2016)
Ryan Pollyea