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.

Keywords:
modification area, flux calculation, approximation, reservoir simulation, drillstem testing, modeling & simulation, artificial intelligence, peaceman, well flow rate, gridblock
Subjects:
Directional drilling, Drilling Operations, Drillstem/well testing, Flow in porous media, Formation Evaluation & Management, Reservoir Fluid Dynamics, Reservoir Simulation, Well & Reservoir Surveillance and Monitoring
Copyright 2000, Society of Petroleum Engineers
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