Research

• Cand.Scient. (M.Sc.)
  • Keywords: upscaling, wavelets, immiscible two phase flow
  • The thesis: Upscaling of Two-phase Reservoir Problems (note: .ps.gz file)
  
  
• Dr.Scient. (Ph.D.)
  • The thesis: Modeling of Flow in Faulted and Fractured Media (note: 8 Mb .pdf file)
  • Visit the project home page: Oil Recovery From Fractured Reservoirs
  
  
• Publications and Presentations
  • "Compositional Flow in a Fractured Reservoir"
    Presentation given at 6th SIAM conference on GeoSciences.
    
    
  • "Modeling fractured and faulted regions: LGR methods for implicit solvers"
    Presentation given at Applied Mathematics for Industrial Flow Problems Third International Conference, April 17-20, 2002 Lisbon-Portugal.
    
    
  • "Modeling fractured and faulted regions: Local grid refinement methods for implicit solvers", I. Garrido, E. Øian, M. Chaib, G. E. Fladmark and M. S. Espedal
    Accepted for publication in Computing and Visualization in Science.
    
    
  • "Local grid refinement strategies for strongly nonlinear and coupled systems"
    Brief presentation of LGR strategy in SOM given at "Safe long terms storage of CO2 in aquifers" kick-off meeting, Department of Physics, UoB, Aug. 19, 2002.
    
    
  • "Fracture connectivity in low-porosity rocks: examples from extensional faults in Kilve, SW England.", T. Skar, S. S Berg, R. H. Gabrielsen and E. Øian
    In: S. S. Jonsson (ed.): The 25th Nordic Geological Winter Meeting, 2002.
    
    
  • "Mathematical and Numerical Modelling"
    Presentation of Department of Mathematics contribution within Center for Integrated Petroleum Research given at Statoil Research Centre, Trondheim, Dec. 4, 2002.
    
    
  • "Implementation of outcrop-based structural data for modelling of fractured reservoirs.", T. Skar, R. H. Gabrielsen S. S Berg and E. Øian
    In: H. A. Nakrem (ed.): Abstracts and Proceedings of the Geological Society of Norway. NGF, 1 (2003), 83. Reykjavik, Iceland 2001, Abstract Volume, 191.
    
    
  • "3D Modeling of Flow in Fractured and Faulted Porous Media"
    Presentation given at SIAM Conference on Mathematical and Computational Issues in the Geosciences (GS03) March 17-20, 2003, Austin, Texas
    
    
  • "Modeling of Flow in Fault Zones Using Local Grid Refinement"
    Presentation given at 20th SUPRI-B Industrial Affiliates Meeting, May 5-6, 2003 , Dept. of Petroleum Engineering, Stanford University
    
    
  • "Implicit treatment of compositional flow", I. Garrido, E. Øian, M. Chaib, G. E. Fladmark and M. S. Espedal
    Accepted for Publication in Computational Geosciences
    
    
  • "Parallel Simulation of Multiphase/Multicomponent Flow Models", Erlend Øian, Magne S. Espedal, Izaskun Garrido, Gunnar E. Fladmark
    Accepted for publication in the proceedings of 15th International Conference on Domain Decomposition Methods , Freie Universität Berlin (FUB), July 21-25, 2003
    
    
  • "Hierarchical approach for simulating fluid flow in normal fault zones", Silje S. Berg and Erlend Øian
    Presentation given at The 26th Nordic Geological Winter Meeting, January 6-9, 2004 Uppsala, Sweden
    
    
  • "Numerical framework for fault modeling", Erlend Øian with I. Garrido, M. S. Espedal and G. E. Fladmark
    Presentation given at CIPR Petroleum Technology seminar, May 4-5, 2004 Bergen, Norway
  
  
• Links
  • SALSA, NOTUR TTP1
  • Centre for Integrated Petroleum Research
  • Department of Petroleum Engineering, Stanford University
  • Object Oriented Message Passing Interface
  
  
• Athena (C++) Simulator and Simulations
  • About Athena, Introduction
    
  • Athena User Manual html, pdf
    
  • Note on flexibility of parameter mapping with GG
    
  • Secondary Oil Migration, Dome case
    
  • Flow through a fault zone, Fault case (~ 5Mb animated gif!)
  • Flow through a fault zone, Fault case (~ Flash animation!)
  • Trapped oil, solved in parallel, Oil case (~ 15Mb animated gif!)
  • Trapped oil, fly-through, Fly-through (~ 2Mb animated gif!)
  • Oil migrating (with gas above), heterogeneous 3D domain, Oil migrating (~ 0.5Mb animated gif!)
  • Gas migrating (with the oil above), heterogeneous 3D domain, Gas migrating (~ 0.5Mb animated gif!)
  • Two-phase flow in fractured domain, Two-phase flow (~ 3Mb animated gif!)
  • Water-front in non-matching domain, Non-matching domain (~ 1Mb animated gif!)
  
  

Courses

• MPI and OpenMP programming courses at Parallab
  • MPI course notes
  • OpenMP course notes
• Winter School in Computational Mathematics, 2001
  • My written exam - "A Linux Cluster for Konk & Krone A/S"
  • See the photos
  
  

Athena Development (internal)

• Athena Revisions
• Athena Documentation
  • SOMLGR
  • SOMIMP
  • SOMPAR
  • GG