Modified analytical model for prediction of steam flood performance

Steam flooding as a tertiary recovery method for recovery of oil from heavy oil reservoir has been of interest in recent years. Analytical models are very useful to predict oil recovery by steam flooding for preliminary forecasting purposes and sensitivity studies. Though different models are available, the predicted values did not satisfy the field value because of presumptions. In the present study, an attempt has been made to modify the existing Jeff Jones model and Chandra and Mamora model by considering the true profile of steam zone size in reservoir and vertical sweep efficiency for calculation of capture efficiency. The reservoir characteristics and production data of three oil fields, viz., Schoonebeek in the eastern part of Netherlands, San Ardo in Monterey County, California, USA and Hamaca in Venezuela's Orinoco heavy oil belt were analyzed for performance prediction of oil production. The modified model gave very satisfactory results for production performance, compared to the original Jeff Jones and Chandra and Mamora model.