With the challenging geology of oil sands, the well-to-well correlation is not straightforward. Not to mention that the horizontal wells need to be placed as close to the OWC as possible for the best SAGD production.
Using deep azimuthal resistivity tools with plotting logs and without running the inversion is just a qualitative interpretation. Now in StarSteer, it is possible to run stochastic inversion that gives a clue on the proximity of OWC and shaley interbeds.
This inversion is calculated on 5 available curves from the ADR tool.