Development and application of proxy models for predicting the shale barrier size using reservoir parameters and SAGD production data

The proxy models for predicting the shale width (WD), shale length (LN), and vertical location of the shale (VL) were developed using the statistical analysis of the reservoir parameters, shale size and location, and IP from production data. As a verification procedure, homogeneous 3-D simulations were performed to reconstruct the predicted WD, LN, and VL, and the oil production profiles of the SAGD field were compared with the simulation results. The oil production profiles showed a similar trend between the simulation results of the reconstructed model and the field SAGD production data. Therefore, the developed proxy models may use to predict the shale barrier size properly, and might be useful for field applications.