Hello!
I have a problem that bothers me for 2 years already. I am simulating regularly field which consists of 4 reservoirs, one above the other, the top one is gas-condensate, the lower 3 are black oil. They are in commingled production. Because of that, we simulate in one model, and black oil reservoirs are actually reservoirs with light oil, so we described the fluid as composite. So, we have 2 PVT regions (the top one and 3 "black oils"), also we have 2 equation of state regions. And, everything works just fine. BUT, I want to know, of course, production from each reservoir, and because I defined them by REGIONS, I use ROPR, ROPT, RGPR etc... So, somehow, the program does not giving me accurate productions: about 40% of each "black oil" reservoirs he transfers into region 1 (gas-composite one). I can get accurate production from each region only by manually calculating it from the well's production (which is very time consuming and boring, for every run I have to export productions into excel and to sum them there). So, what is going on? (there is no inter region flow).
Separator conditions are well defined, everything is ok, no convergence problems etc. To explain it more, when I look at ROIP (Region Oil In Place) from region 1, shouldn't the last value equal ROIP-total produced? In my case, it is not, it is for 70% higher than ROIP-ROPT (region oil production total).
If you need more information, please let me know. Thank you!
Dana
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