Stephan Matthäi

(Former)

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Research output

  1. 2017
  2. Published

    Numerical investigation of fracture-rock matrix ensemble saturation functions and their dependence on wettability

    Sedaghat, M., Azizmohammadi, S. & Matthäi, S. K., Nov 2017, In: Journal of Petroleum Science and Engineering. 159.2017, November, p. 869-888 20 p.

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

  3. Published

    Is the permeability of naturally fractured rocks scale dependent?

    Azizmohammadi, S. & Matthäi, S. K., 23 Sept 2017, In: Water Resources Research. 53.2017, 9, p. 8041-8063 23 p.

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

  4. Published

    Ensemble relative permeability in naturally fractured rocks: the role of wettability

    Sedaghat, M., Azizmohammadi, S. & Matthäi, S. K., 14 Sept 2017.

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

  5. 2016
  6. Published

    Simulation-based Determination of Relative Permeability in Laminated Rocks

    Sedaghat, M., Gerke, K., Azizmohammadi, S. & Matthäi, S. K., 29 Nov 2016, In: Energy Procedia. 97, p. 433-439 7 p.

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

  7. Published

    The Challenge of Deriving Saturation Functions for Laminated Heterogeneous Rocks

    Sedaghat, M., Gerke, K., Matthäi, S. K. & Azizmohammadi, S., 31 Jul 2016.

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

  8. 2015
  9. Published

    Dependence of the Equivalent Permeability of a Fractured Rock Mass on Sampling Scale, Fluid Pressure and Stress

    Azizmohammadi, S. & Matthäi, S. K., 1 Jul 2015.

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

  10. 2014
  11. Published

    The Finite-element-centered Finite-volume Discretization Method (FECFVM) for Multiphase Transport in Porous Media with Sharp Material Discontinuities

    Bazr Afkan, S., Matthäi, S. & Mindel, J., Sept 2014, 14th European Conference on the Mathematics of Oil Recovery 2014: ECMOR 2014. A14

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

  12. Published

    Realistic simulation of an aquifer thermal energy storage: Effects of injection temperature, well placement and groundwater flow

    Yapparova, A., Matthäi, S. & Driesner, T., 2014, In: Energy. 76, p. 1011-1018

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

  13. 2013
  14. Published

    Comparative Analysis of Multiphase Flow Simulation in a Fractured Reservoir Using Asynchronous and Synchronous Time Stepping Schemes on Hybrid Finite Element Finite Volume Meshes

    Manasipov, R., Mindel, J. & Matthäi, S., 2013.

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

  15. Published

    Flow Rate- and Fracture Property Dependence of Fracture-Matrix Ensemble Relative Permeability

    Matthäi, S., Lang, P. & Bazrafkan, S., 2013.

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

  16. Published

    Multiphase flow simulation of discrete fracture models with asynchronous and synchronous time stepping schemes: a comparison

    Manasipov, R., Mindel, J. & Matthäi, S., 2013.

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

  17. 2012
  18. Published

    Drainage Patterns of Subvertical Wells intersecting Naturally Fractured Carbonate Reservoir Layers

    Bazr Afkan, S., Matthäi, S. & Milliotte, C., 2012.

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

  19. Published

    Flow Rate- and Fracture Property Dependence of Fracture-Matrix Ensemble Relative Permeability

    Matthäi, S., Lang, P. & Bazrafkan, S., 2012.

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

  20. Published

    Importance of Fracture-Matrix Transfer by Counter-Current Imbibition (CCI) in Naturally Fractured Reservoirs

    Seidl, G., Lang, P., Yapparova, A. & Matthäi, S., 2012.

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

  21. Published

    Scale Dependence of Equivalent Permeability Tensor in Naturally Fractured Reservoirs

    Azizmohammadi, S., Matthäi, S. & Paul, J. D., 2012.

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

  22. Published

    Second Annual Report

    Seidl, G. & Matthäi, S., 2012

    Research output: Book/Report › Commissioned report › Transfer › peer-review

  23. 2011
  24. Published

    A Hybrid Finite-Element Finite-Volume Method with Embedded Discontinuities for Solute Transport in Heterogeneous Media

    Nick, H. M. & Matthäi, S., 2011, In: Vadose zone journal. 10, p. 299-312

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

  25. Published

    A new hybrid simulation method for multiphase flow on unstructured grids with representations of material interfaces

    Bazr Afkan, S. & Matthäi, S., 2011, Mathematical Geosciences at the Crossroads of Theory and Practice, IAMG Salzburg 2011, Salzburg proceedings. p. 294-305

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

  26. Published

    Carbon Capture and Utilization, Vorstudie

    Antrekowitsch, H., Biedermann, H., Ellersdorfer, M., Hofstätter, H., Lehner, M., Matthäi, S., Moser, P., Oberndorfer, M., Theodoridou, V., Treimer, R. & Wagner, C., 2011

    Research output: Book/Report › Commissioned report › Transfer

  27. Published

    CO2 migration in saline aquifers

    Trojer, M. & Matthäi, S., 2011.

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

  28. Published

    Comparison of Three FE-FV Numerical Schemes for Single- and Two-Phase Flow Simulation Fractured Porous Media

    Nick, H. M. & Matthäi, S., 2011, In: Transport in porous media. p. 421-444

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

  29. Published

    First Annual Report

    Seidl, G. & Matthäi, S., 2011

    Research output: Book/Report › Commissioned report › Transfer › peer-review

  30. Published

    Fracture-Matrix Interface Area Contacted by Injected Fluid as a Function of Average Saturation, Mechanical Aperture and Counter-Current Imbibition

    Lang, P. & Matthäi, S., 2011, Mathematical Geosciences at the Crossroads of Theory and Practice, IAMG Salzburg 2011, Salzburg proceedings. p. 333-349

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

  31. Published

    Ganglion migration of CO2 in porous media

    Trojer, M. & Matthäi, S., 2011.

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

  32. Published

    Importance of Counter-Current Imbibition (CCI) in Naturally Fractured Reservoirs

    Seidl, G., Lang, P. & Matthäi, S., 2011.

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

  33. Published

    Importance of Counter-Current Imbibition (CCI) in Naturally Fractured Reservoirs (NFR)

    Seidl, G., Lang, P. & Matthäi, S., 2011.

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

  34. Published

    Investigations effects of counter-current imbibitions in naturally-fractured reservoirs by discrete fracture network simulations

    Seidl, G., Lang, P. & Matthäi, S., 2011.

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

  35. Published

    Multiresolution Wavelet-Based Upscaling of Structured Grids

    Azizmohammadi, S. & Matthäi, S., 2011.

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

  36. Published

    Role of geomechanically grown fractures on dispersive transport in heterogenous geological formations

    Nick, H. M., Paluszny, A., Blunt, M. J. & Matthäi, S., 2011, In: Physical review : E, Statistical, nonlinear and soft matter physics. 84, p. 1401-1410

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

  37. 2010
  38. Published

    Architektur des Trattnach Ölfeldes (Molassebecken)

    Reischenbacher, D., Schnitzer, S., Sachsenhofer, R., Matthäi, S., Hablous, A. S., Troiss, W. & Bieg, U., 2010, Geosciences - Fundamentals and Applications. p. 210-211

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

  39. Published

    Architektur des Trattnach Ölfeldes (Molassebecken)

    Reischenbacher, D., Schnitzer, S., Sachsenhofer, R., Matthäi, S., Hablous, A. S., Troiss, W. & Bieg, U., 2010.

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

  40. Published

    Impact of fracture development on the effective permeability of porous rocks as determined by 2D discrete fracture growth modeling 1

    Paluszny, A. & Matthäi, S., 2010, In: Journal of geophysical research / B. 115, p. 1-18

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

  41. Published

    Simulation of Solute Transport Through Fractured Rock: A Higher-Order Accurate Finite-Element Finite-Volume Method Permitting Large Time Steps

    Matthäi, S., Nick, H. M., Pain, C. & Neuweiler, I., 2010, In: Transport in porous media. 83, p. 289-318

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

  42. Published

    The Impact of Hierarchival Fracture Netwoeks on Flow Partitioning in Carbonate Reservoirs: Examples Based on a Jurassic Carbonate Ramp analog from the High Atlas, Moroco

    Matthäi, S., Agar, S. M., Geiger, S., Alway, R., Tomas, S., Immenhauser, A., Shekhar, R., Paul, J., Benson, G., Karcz, Z. & Kabiri, L., 2010, SPE Annual Technical Conference and Exhibition Proceedings. p. 1-19

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

  43. 2009
  44. E-pub ahead of print

    Erosional decay of the Yucca Mountain crest, Nevada

    Stüwe, K., Robl, J. C. & Matthäi, S., 28 Jan 2009, (E-pub ahead of print) In: Geomorphology. 108.2009, 3-4, p. 200-208 9 p.

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

  45. Published

    A Linear Finite-element Node-centered Finite-volume Method Including Jump Discontinuities Applied to 2-phase Fracture / Matrix Flow

    Matthäi, S., 2009,

    SIAM Conference on Mathematical & Computational Issues in the Geosciences Proceedings

    .     p. 73-73

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

  46. Published

    Black-Oil Simulations for Three-Component, Three-Phase Flow in Fractured Porous Media

    Geiger, S., Matthäi, S., Niessner, J. & Helmig, R., 2009, In: SPE journal : SPEJ. p. 338-354

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

  47. Published

    Comparison of deterministic with stochastic fracture models in water-flooding numerical simulations

    Belayneh, M. W., Matthäi, S., Blunt, M. J. & Rogers, S. F., 2009, In: AAPG bulletin. 93, p. 1633-1648

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

  48. Published

    Finite Element-Based Characterization of Pore-Scale Geometry and Its Impact on Fluid Flow

    Akanji, L. T. & Matthäi, S., 2009, In: Transport in porous media. p. 1-19

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

  49. Published

    Massively Parallel Sector Scale Discrete Fracture and Matrix

    Geiger, S., Huangfu, Q., Reid, F., Matthäi, S., Coumou, D., Belayneh, M., Fricke, C. & Schmid, K., 2009, SPE Reservoir Simulation Symposium Proceedings. p. 1-15

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

  50. Published

    Numerical modeling of discrete multi-crack growth applied to pattern formation in geological brittle media

    Paluszny, A. & Matthäi, S., 2009, In: International journal of solids and structures. 46, p. 3383-3397

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

  51. Published

    Numerical study of the effects of particle shape and polydispersity on permeability

    Garcia, X., Akanji, L. T., Blunt, M. J., Matthäi, S. & Latham, J. P., 2009, In: Physical review : E, Statistical, nonlinear and soft matter physics. 80, p. 021304-1-021304-9

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

  52. Published

    Simulation of multiphase flow in fractured reservoirs using a fracture-only model with transfer functions

    Unsal, E., Matthäi, S. & Blunt, M. J., 2009, In: Computers & geosciences. p. 1-12

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

  53. Published

    Upscaling two-phase flow in naturally fractured reservoirs

    Matthäi, S. & Nick, H. M., 2009, In: AAPG bulletin. 93, p. 1621-1632

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

  54. 2008
  55. Published

    A parallel FE-FV scheme to solve fluid flow in complex geological media

    Matthäi, S., 2008, In: Computers & geosciences. 34, p. 1697-1707

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

  56. Published

    Reservoir Simulation: Mathematical Techniques in Oil Recovery

    Matthäi, S., 2008, In: Geofluids. 8, p. 344-345

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

  57. 2007
  58. Published

    Black-Oil Simulations for Three-Component, Three-Phase Flow in Fractured Porous Media

    Geiger, S., Matthäi, S., Niessner, J. & Helmig, R., 2007, SPE Proceedings. p. 1-14

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

  59. Published

    Electrokinetic coupling in unsaturated porous media

    Matthäi, S., Revil, A., Linde, N. & Cerepi, A., 2007, In: Journal of colloid and interface science. 313, p. 315-327

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

  60. Published

    Finite Element-Node-Centered Finite-Volume Two-Phase-Flow Experiments With Fractured Rock Represented by Unstructured Hybrid-Element Meshes

    Matthäi, S., Mezentsev, A. & Belayneh, M., 2007, In: SPE reservoir evaluation & [and] engineering. p. 740-756

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

  61. Published

    Hybrid finite element-finite volume discretization of complex geologic structures and a new simulation workflow demonstrated on fractured rocks

    Matthäi, S., Paluszny, A. & Hohmeyer, M., 2007, In: Geofluids. 7, p. 186-208

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

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