COHIBA User Manual Version 6.0

This user manual describes the COHIBA surface modeling software. It consists of:
Part I Introduction: Basic ideas and terminology
Part II User manual: Usage, input data and results
Part III Tutorials: Special topics such as volumes, simulation and faults
Part IV Reference manual: Descriptions of all COHIBA model file elements
Part V Theory: Methods used by COHIBA
Part VI Appendix: Release notes, known issues, references, list of acronyms,
tables and figures, and an index

Advanced topics and technicalities are marked by the warning symbol in the right margin. COHIBA model file elements marked by this warning symbol should be used with some care. The latest version of this document is available at: www.nr.no/COHIBA. For COHIBA support contact Pal.Dahle@nr.no or Ariel.Almendral.Vazque@nr.no.

The following scientists at Norwegian Computing Center has contributed to the development of
COHIBA:

Petter Abrahamsen
Pål Dahle Frode Georgsen
Vera Louise
Hauge Gudmund Hermansen
Odd Kolbjørnsen
Lars Bakke Krogvik
Vegard Berg Kvernelv
Inge Myrseth
Audun Sektnan
Arne Skorstad
Harald Soleng
Ariel Almendral Vazquez
Maria Vigsnes
Ingrid Aarnes

The front page shows two fences along well paths on top of a faulted surface on the Valhall carbonate field in the North Sea. The illustration is made by Ingrid Aarnes. We thank Aker BP for permission to publish the illustration.