When I was studying about the SAGD process, I needed a reliable data for simulation of a heavy oil reservoir. The best case I found, of course according to the SAGD process, was the reservoir property in Athabasca, Canada (so-called The UTF project). It has been investigated by large numbers of researchers. You can search it via Scholar-google. I mentioned some of the references in my work "Using exponential geometry for estimating oil production in the sagd process" too. If possible check it out.