Multilayer well parameterization

I'm working on integrating several multilayer wells into a model I'm building, but am a bit confused as to how they are parameterized; am I assigning values to the void space that makes up the wellbore? In the Multilayer Well Editor I see that it's possible to modify the values for specific storage, density ratio, dispersivity, etc. What values should be used? I realize it's likely case specific, but is it suitable to leave them as the default values, or should I assign the same values to the well as were given to the formation that the well targets?

Thanks!

Yes, you are right. It's rather case specific. ~99 percent of the models I saw used the default values. Actually, for good reasons. If you pump water you trigger an advective transport component which is overprinting molecular diffusion and/or heat conduction.