John,
i'm the wrong guy to ask for that sort of information. I should know more about it than i do but I'm not a flow guy so take that into consideration.
I don't think 200 mD is necessarily bad. The Macondo reservoir was supposedly only ~300 mD. The Eagle Ford shale is supposedly ~1 mD. Fracturing/stimulation is not limited to gas shales. If a rock contains sufficient quantity and quality of oil and the porosity is as you say, then I'd think they would create the permeability. Of course, if the pores are 80% full of water, then that might be another problem.
I would also think that temperature and pressure would have to be known in order to determine permeability (e.g. they affect viscosity which is also part of the viscosity calculation) so that sounds a bit off.
Bottom line is that you shouldn't read too much into an out of context permeability number.
regards,
Charlie
