Question received on the Ocean portal:
I got following error. For all PetrelSystem declaration in my code, I got the same error. I added Ocean.Core dll file from new path(Petrel 2012), but that did not help:
The name 'PetrelSystem' does not exist in the current context
the code was copiling correctly on Ocean for Petrel 2011
Static class PetrelSystem is defined in Slb.Ocean.Petrel.Global.dll, not in Core. Core is for non-Petrel stuff. Make sure you have all the libraries included.
There is a small difficulty in moving to 2012 in the fact that some classes that were previously defined in Slb.Ocean.Petrel.dll have been migrated to Slb.Ocean.Petrel.Global.dll