26Nov07 

We have published a capillary pressure correlation for mixed-wet
reservoir. Now we would like to extend the correlation to model fluid flow
processes where the wettability may change with time.  We have guessed how
the correlation should look like, but it is not validated. This should be
done, preferably, both by experiments and by theoretical considerations
and/or simulations.

The suggested master thesis problem is to validate the correlation by
simulation using available pore network models. Also, Cassie's law should
be included in the considerations. This law states that the apparent
contact angle of a droplet on a heterogeneous surface with spatially
inhomogeneous local contact angles is given by the areal average of the
local contact angles. This apparent contact angle may be included directly
or indirectly in the suggested new correlation.

The work will consist or running Matlab-programmed available pore network
models to check out the correlation.

Responsible: Svein M. Skjaeveland
Co-advisors: Johan Olav Helland and Liping Yu.