Reliability of Predicted Well Performance Through Automatic History Matching

5 Reliability of Predicted Well Performance Through Automatic History Matching 

It is of interest in a reservoir simulation study to compute future production levels of the history matched reservoir under alternative depletion plans. In addition, the sensitivity of the anticipated performance to different reservoir descriptions is also evaluated. Such studies contribute towards assessing the risk associated with a particular depletion plan. 

Kalogerakis and Tomos (1995) presented an efficient procedure for the determination of the 95 percent confidence intervals of forecasted horizontal well 

The production rates for oil (Q0J), water (Qwj) and gas (Qa) from a vertical or horizontal well completed in layer j are given by the following equations 

The total oil production rate is obtained by the sum of all producing layers of the well, i.e., 

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