Optimizing separator pressure in a multistage crude oil production plant

摘要: This thesis contains a steady state simulation model of multistage crude oil production plant. The unstable reservoir fluid is separated into and gas in three stage separation Peng Robinson Equation State successive substitution used to the separators. liquid output for third separators stable sold on international market. liberated compressed by centrifugal compressors injected reservoir. Several methods modelling are discussed. discussion concludes that Dimensionless Parameters best suited method this case therefore used. plant studied has stages at decreasing pressure standard control use fixed separator pressure. not optimal brute force optimization find set-points. Adaptive set-points will improve product increase profit. profit calculated as income from sale minus energy cost. Using new method, optimum pressures Snorre A determined. As result, increased with 0.17, 0.11 0.07 present different inlet conditions. For one year small gives an extra two million dollars income. adaptive give extension plant’s maximum capacity high ratio.