I am working in field with huge lateral extent. there are no separation faults to make compartments nor geological bodies to separate and compartmentalize the field.

however,one thing I notices is the change in PVT properties mainly viscosity is drastic !

ranges from just 1 cp in the west to 20 cp on the east.and the other PVT are almost identical.

so,can I consider the field as one PVT region or should I make subdivisions based only on one PVT property?

waiting for your contributions