The principle goal of the 10th SPE Comparative Solution Project is to compare upgridding approaches on a one million cell model. The model geometry is a regular Cartesian grid with 60 x 220 x 85 (1,122,000) cells. The model is characterized by two formations, the first in the top 35 layers and the second in the bottom 50 layers. Both formations display large permeability variations that range up to 12 orders of magnitude. The reservoir is produced by a five spot pattern with a water drive in the center at a constant constant injection rate of 5,000 stb/d and production wells in each of the four corners, with bottom-hole pressures of 4,000 psi. The simulation produces for 2,000 days assuming incompressible flow.
Figure 1. Surface of SPE10 model with well locations marked in red. Water drive in the center with production wells in each of the four corners.