Control-volume method for simulation in the well vicinity for arbitrary well configurations

Advanced wells are getting more and more used in reservoir engineering to increase the oil recovery. However, accurate modeling of these kinds of wells is still a challenge due to the scaling problem related to the large gridblocks used in the simulation and the small wellbore: diameter. In this paper, a control volume method is proposed, which is suitable for the well singularity flow modeling. Both the well performance and the flux calculation in the well vicinity can be accurately handled with this method. The use of this control volume approach for advanced well modeling with distorted gridblocks is particularly addressed. Some examples are presented to illustrate the efficiency of the approach.