Modeling and Optimizing Oil and Gas Production and Gathering Systems: Cerro Frotunoso Field Case

摘要

Cerro Fortunoso field produces a heavy and viscous oil and a separator gas which contains 95/100 of CO_2. In 1996 a decision was made to reinject the gas to maintain pressure and prevent environ- mental damage. A technical team used a network simulator to model both the current oil gathering and the future gas reinjection systems. A parallel study was conducted to analyze the effect of non-Newtonian performance on predicted pressure drop. Al- though deviation was found to be slight, the non-Newtonian effect should be properly included in design calculations. Besides, as the gas will be reinjected near its critical point, thermodynamics be- comes extremely important.