how much important the role of geophysicist to do work as a reservoir engineer in petroleum exploration?is their any post-doc/phd courses or any independent scientifc organisation to work in this field ,alll around the world?? name of some scientist who served as the role mentioned abovewhat are the intial data needed for the black oil simulation ? give case study examples with references in good no.future advances in geophysical techniques that bridiging the chasm between geophysics and reservoir engineering?