Group Discussions

1
Group Discussions

• Reservoir Group
• Multiphase Flow Group
• Seismic Group

2
Reservoir Group

• Cyril Caubit
• Emanuel Fetel
• Jon Kleppe
• Alf Lachner
• Richard Sinding-Larsen
• Roar Sandøy
• Ole Torsæter
• Thierry Yalamas

3
Research Issues

• Richard
• Information content in measurements and
  permissible arithmetics
• Upscaling - downscaling
• Roar
• How to build 3D models from sparce data and find
  visualization procedures
• How do we estimate, understand and visualize 3D
  uncertainty
• Ole
• How to get good data for rel. perms.
• Scaling of lab data to reservoir scale
• Thierry
• Converting geological concepts to quantitative
  models
• How to select equiprobable reali-zations within a
  geological concept

• Cyril
• phase saturation measurements
• uncertainty in measurements
• Emmanuel
• Formulation of dual mechanical-fluid interacting
  systems
• Are poro-elastic assumptions valid for very
  viscous fluids?
• Jon
• Fundamental concept of rel. perm. and cap. press.
  - do we understand?
• Reservoir measurements for conditioning of models
  
• Alf
• Measurement uncertainty in relative
  permeabilities
• Accounting for capillarity in relative
  permeability measurements

4
Subgroup discussions

• Laboratory measure-ments, concepts, and
  uncertainties
• Cyril
• Ole
• Alf
• Thierry

• Spacial uncertainties, reservoir measure-ments,
  and modelling
• Emmanuel
• Roar
• Richard
• Jon

5
Micro scale

• Description of physical problems
• IFT, wettability spreading coefficient
• Two- three - phase configuration
• Input in pore network model
• rel.perm, phase saturation
• Compare lab. measurements

6
Lab. measurements

• Controversy on results
• Different method for each process
• Difficulty on measuring relative permeability
• Importance to increase the quality of data

7
Spacial uncertainties, reservoir measurements,
and modelling

• Representativeness of parameters and models
• What are the REVs for f, k, Kr, Pc,...
• Knowing parameters, REVs and uncertainties, how
  do we model the dynamic behavior at small
  scale?
• What parameters need to be upscaled to large
  scale, how do we do it, and what are the
  limitations of validity? Tensor represen-tation
  of parameters and proper process description are
  important.
• Need better measurements in space and time of
  reservoir scale properties for conditioning of
  models which use upscaled small scale
  parameters
• Downscaling of reservoir measurements
• Better visualization of parameters, uncertainty
  and behavior

8
Multiphase flow group

• Sophie Galinat
• Jørn Kjølaas
• Christophe Conan
• Fabien Renault

9
Agenda

• Field of research
• Experimental facilities
• Common interest
• Potential for interaction
• Conclusion

10
Field of research

• NTNU Multiphase Lab, Trondheim
• Small scale, atmospheric
• Applied research
• SINTEF Multiphase Lab, Tiller
• Large scale, real conditions pressure
• Direct industrial applications
• LGC Multiphase Group IMFT, Toulouse
• Micro scale phenomena and implications
• Emphasis on fundamentals

11
Experimental facilities

• NTNU
• Straight acrylic 6 3 cm ID, 16m 15º
• Straight steel 6 , 16m 15º
• Flexible acrylic 5 cm ID 16m
• S riser
• L riser

12
Experimental facilities

• SINTEF
• Medium scale 6.9 cm ID, 200m 1º
• Large scale 19 cm ID, 1000m 1º
• LGC multiphase group
• Vertical section 3 cm ID
• Straight acrylic 5 cm ID, 10m
• IMFT steel 30m

13
Common interest

• Oil/water flow is clearly a shared topic of
  research
• Christophe (Toulouse) experiments and modelling
• Trygve (NTNU) computing schemes
• Karolina (Imperial College visiting NTNU)
  caracterisation of inversion point.
• Monika (NTNU) Influence of water on slug flow

14
Potential for Interaction

• Marie Curie training sites
• Visiting PhDs come for 6 months
• Possibility to use the available loops
• Interest validate the results on another loop
  (different fluids, diameter, )
• Sharing of data possible

15
Conclusion

• As a common interest has been found between the
  two laboratories, contact should be kept in the
  future.
• Open invitation to visit NTNU
• Possible Dr.Ing meeting in Pau with visit of
  local facilities (IMFTLGC)

16
Seismic Group Group

• Alexandre EGRETEAU
• Stig Kyrre FOSS
• Amir GHADERI
• Frederic JONCOUR
• Martin LANDRØ
• Sylvain NGUYEN
• Thomas RØSTE

17

• SUMMARY of seismic discussions at Røros 24th
  October
• Strong similarities between Sylvain and Stig
  Kyrres work. Stig Kyrre and Bjørn Ursin will
  discuss further with Gilles Lambare.
• Time-lapse migration of CO2-filled lenses. Martin
  will contact Philippe Thierry on this issue.
• Alexandre will consider to work on thin-bed AVO
  next year. This might be well aligned with work
  going on in Trondheim, both Bjørn and Martin.
• Overburden effects on AVO (Martin to discuss with
  Philippe)
• Adam Gosselet works on 4C-related things, Sylvain
  will ask Adam to send a mail to Thomas in order
  to check similarities and possibilities for
  cooperation.