The Importance of History Match Quality on Reservoir Performance Prediction by Application of Miscible Gas Injection Different Scenarios

Simulation is used as a management important tool for reservoir studies and history matching is the most important of issues in the simulation. One of the most important steps in hydrocarbon reservoir simulation is history match. To have a reliable future production or functioning from the reservoir, it is necessary to run a history match on simulated model of the reservoir. This process is generally carried out either manually or automatically. In this paper, the effect of precise and high quality history match is investigated in reservoir production forecast via applying some miscible gas injection and natural depletion scenarios on two different normal and fractured reservoir models separately. It is worthy of note that both reservoir models were subjected to automatic history match prepared. In each model, two situations of history match with different precision levels were chosen and then different scenarios were simulated. Finally, the result of scenarios were compared and evaluated according to the precision of each situation.