Rami Younis, PhD
Bio
Dr. Younis is an Associate Professor at the McDougall School of Petroleum Engineering at The University of Tulsa. He is the Founder and Director of the Future Reservoir Simulation Systems and Technology (FuRSST) jointindustrial research consortium. His research aims to: 1) develop fundamental advances in computational methods that are foundational to modeling technologies at the systemsscale; 2) advance algorithms and software infrastructure to enable automatic scalability and performance optimization of scientific research software; and 3) leverage data and computation to evaluate, optimize, and design more efficient and prudent operations. Dr. Younis serves as Associate Editor for the SPE Journal, Guest Editor for the Journal of Petroleum Science and Engineering, and Organizing Committee member for the SPE Reservoir Simulation Conference. He holds a PhD degree in Petroleum Engineering and two MS degrees in Scientific Computing & Computational Mathematics and in Petroleum Engineering, all from Stanford University. He earned his B.Eng. degree with Honors in Mechanical Engineering from McGill University in Canada.
Research Interests
Application area: subsurface engineeredsystems involving multiphysics and multiscale processes, including poromechanics, multiphase fluid flow, and fracture.
Computational methods: resilient and computationally efficient solvers, and highfidelity numerical approximations
Computeraided analysis and design at the systemsscale
Teaching Interests
Reservoir engineering
Multiphase flow in porous media
Numerical simulation and computational methods
Geostatistics
Publications
Journal Articles

Ren, G., Jiang, J., & Younis, R. (2018). A Model for coupled geomechanics and multiphase flow in fractured porous media using embedded meshes, 122, 113130.

Younis, R. (2017). An improved projectionbased embedded discrete fracture model (pEDFM) for multiphase flow in fractured reservoirs, 109, 267289.

Younis, R. (2017). Efficient C1continuous phasepotential upwind (C1PPU) schemes for coupled multiphase flow and transport with gravity, 108, 184204.

Younis, R. (2017). Localized linear systems in sequential implicit simulation of twophase flow and transport, 22, 15421569.

Younis, R. (2017). An efficient fullyimplicit multislope MUSCL method for multiphase flow with gravity in discrete fractured media, 104, 210222.

Younis, R. (2017). A Bayesian model selection analysis of equilibrium and nonequilibrium models for multiphase flow in porous media, 89, 313320.

Younis, R. (2016). The asymptotic mesh independence principle of Newtonâ€™s method under weaker conditions, 26, 4456.

Younis, R. (2016). Hybrid coupled discretefracture/matrix and multicontinuum models for unconventionalreservoir simulation, 21, 10091027.

Younis, R. (2015). A multimechanistic multicontinuum model for simulating shale gas reservoir with complex fractured system, 161, 333344.

Younis, R. (2015). Numerical study of complex fracture geometries for unconventional gas reservoirs using a discrete fracturematrix model, 26, 11741186.

Younis, R. (2010). Adaptively localized continuationNewton methodnonlinear solvers that converge all the time, 15, 526544.

Professional Competencies with Behaviorally Anchored Ratings for Graduate Students.
Conference Proceedings

Younis, R. (2018). A coupled XFEMEDFM numerical model for hydraulic fracture propagation. In 16th European Conference on the Mathematics of Oil Recovery, ECMOR 2018.

Younis, R. (2018). Localized linear systems for fullyimplicit simulation of multiphase multicomponent flow in porous media. In 16th European Conference on the Mathematics of Oil Recovery, ECMOR 2018.

Younis, R. (2018). Proxy reservoir simulation model for IOR operations. In Saint Petersburg 2018: Innovations in Geosciences &amp;#65533; Time for Breakthrough.

Fostering graduate student professionalism using developmental coaching techniques. (2017). In Proceedings of the American Society of Engineering Education Conference.

Professional competencies with behaviorally anchored ratings for graduate students. (2017). In Proceedings of the American Society of Engineering Education Conference.

Younis, R. (2017). An efficient fullyimplicit MFDMUSCL method based on a novel multislope limiting procedure. In Society of Petroleum Engineers – SPE Reservoir Simulation Conference 2017 (pp. 499519).

Younis, R. (2017). C1continuous PPU schemes for efficient simulation of fullycoupled multiphase flow with gravity. In Society of Petroleum Engineers – SPE Reservoir Simulation Conference 2017 (pp. 17901813).

Younis, R. (2017). Fullycoupled XFEMEDFM hybrid model for geomechanics and flow in fractured reservoirs. In Society of Petroleum Engineers – SPE Reservoir Simulation Conference 2017 (pp. 22472265).

Younis, R. (2017). Localized solvers for general fullresolution implicit reservoir simulation. In Society of Petroleum Engineers – SPE Reservoir Simulation Conference 2017 (pp. 17191753).

Younis, R. (2017). Nonlinear safeguarding strategies for fully implicit timestepping and complex processes. In Society of Petroleum Engineers – SPE Reservoir Simulation Conference 2017 (pp. 20432062).

Younis, R. (2016). A diagnostic framework for “Bashed” Wells in unconventional reservoirs: A numerical simulation and model selection theory approach. In SPE/AAPG/SEG Unconventional Resources Technology Conference 2016.

Younis, R. (2016). A fully coupled XFEMEDFM model for multiphase flow and geomechanics in fractured tight gas reservoirs. In Procedia Computer Science (Vol. 80, pp. 14041415).

Younis, R. (2016). An efficient fullyimplicit highresolution MFDMUSCL method for twophase flow with gravity in discrete fractured media. In 15th European Conference on the Mathematics of Oil Recovery, ECMOR 2016.

Younis, R. (2016). C1PPU schemes for efficient simulation of coupled flow and transport with gravity. In 15th European Conference on the Mathematics of Oil Recovery, ECMOR 2016.

Younis, R. (2016). Compositional modeling of enhanced hydrocarbons recovery for fractured shale gascondensate reservoirs with the effects of capillary pressure and multicomponent mechanisms. In Proceedings – SPE Symposium on Improved Oil Recovery (Vol. 2016January).

Younis, R. (2016). Damping of Newton iterations using automatic errorcontrol steplength selection. In 15th European Conference on the Mathematics of Oil Recovery, ECMOR 2016.

Younis, R. (2016). Fully coupled geomechanics and reservoir simulation for naturally and hydraulically fractured reservoirs. In 50th US Rock Mechanics / Geomechanics Symposium 2016 (Vol. 4, pp. 34233434).

Younis, R. (2016). Localized computation of Newton updates for general Fullyimplicit reservoir simulation. In 15th European Conference on the Mathematics of Oil Recovery, ECMOR 2016.

Younis, R. (2016). Localized computation of Newton updates in FullyImplicit twophase flow simulation. In Procedia Computer Science (Vol. 80, pp. 13921403).

Younis, R. (2016). XFEMEDFMMINC for coupled geomechanics and flow in fractured reservoirs. In 15th European Conference on the Mathematics of Oil Recovery, ECMOR 2016.

Younis, R. (2015). A generic physicsbased numerical platform with hybrid fracture modelling techniques for simulating unconventional gas reservoirs. In Society of Petroleum Engineers – SPE Reservoir Simulation Symposium 2015 (Vol. 3, pp. 21062151).

Younis, R. (2015). A history matching procedure for nonGaussian fades based on ESMDA. In Society of Petroleum Engineers – SPE Reservoir Simulation Symposium 2015 (Vol. 2, pp. 754769).

Younis, R. (2015). Localized linear systems for sequential implicit simulation of flow and transport. In Society of Petroleum Engineers – SPE Reservoir Simulation Symposium 2015 (Vol. 3, pp. 21672189).

Younis, R. (2015). Rate transient effects of various complex fracture network topologies in unconventional gas reservoirs: A numerical simulation study. In Society of Petroleum Engineers – Unconventional Resources Technology Conference, URTeC 2015.

Younis, R. (2014). A multicontinuum compositional model for CO2EGR process in stimulated fractured shale gas reservoirs. In 14th European Conference on the Mathematics of Oil Recovery 2014, ECMOR 2014.

Younis, R. (2014). Asynchronous multriate Newton – A class of nonlinear solver that adaptively localizes computation. In 14th European Conference on the Mathematics of Oil Recovery 2014, ECMOR 2014.

Younis, R. (2014). Development of a multicontinuum multicomponent model for enhanced gas recovery and CO2 storage in fractured shale gas reservoirs. In Proceedings – SPE Symposium on Improved Oil Recovery (Vol. 2, pp. 11981214).

Younis, R. (2014). Development of a multicontinuum multicomponent model for enhanced gas recovery and CO2storage in fractured shale gas reservoirs. In SPE – DOE Improved Oil Recovery Symposium Proceedings (Vol. 2, pp. 11981214).

Younis, R. (2013). A sharp analytical bound on the spatiotemporal locality in general twophase flow and transport phenomena. In Procedia Computer Science (Vol. 18, pp. 473480).

Younis, R. (2012). Lazy Kway linear combination kernels for efficient runtime sparse Jacobian matrix evaluations in C++. In Lecture Notes in Computational Science and Engineering (Vol. 87 LNCSE, pp. 333342).

Younis, R. (2012). How fast is your Newtonlike nonlinear solver?. In ECMOR 2012 – 13th European Conference on the Mathematics of Oil Recovery.

Younis, R. (2009). General nonlinear solution strategies for multiphase multicomponent EoS based simulation. In SPE Reservoir Simulation Symposium Proceedings (Vol. 1, pp. 649663).

Younis, R. (2009). Adaptivelylocalizedcontinuationnewton: Reservoir simulation nonlinear solvers that converge all the time. In SPE Reservoir Simulation Symposium Proceedings (Vol. 2, pp. 10051025).

Younis, R. (2008). AdaptivelylocalizedcontinuationNewton; reservoir simulation nonlinear solvers that converge all the time. In ECMOR 2008 – 11th European Conference on the Mathematics of Oil Recovery.

Younis, R. (2007). Parallel automatically differentiate datatypes for next generation simulator development. In SPE Reservoir Simulation Symposium Proceedings (pp. 487502).

Younis, R. (2006). Multiscale process coupling by adaptive fractional stepping: An insitu combustion model. In Proceedings – SPE Symposium on Improved Oil Recovery (Vol. 1, pp. 1832).

Younis, R. (2005). Towards an adaptive, highresolution simulator for steam injection processes. In SPE Western Regional Meeting, Proceedings (pp. 363370).

Younis, R. (2005). A novel adaptive anisotropic grid framework for efficient reservoir simulation. In SPE Reservoir Simulation Symposium, Proceedings (pp. 291298).

Younis, R. (2004). Experimental investigation and high resolution simulator of insitu combustion processes; 1. Simulator design and improved combustion with metallic additives. In SPE International Thermal Operations and Heavy Oil Symposium Proceedings (pp. 407414).
Technical Reports

Le, D., Reynolds, A., & Younis, R. (2015). A History Matching Procedure for NonGaussian Facies Based on ESMDA. The University of Tulsa.
Courses Taught
 Research and Thesis
 Reservoir Simulation I
 Research and Dissertation
Professional Affiliations
 Society of Industrial and Applied Mathematics
 Society of Petroleum Engineers