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8732164 
Meetings & Symposia 
Exergoeconomic Optimization of Oil and Gas Production Systems 
Akchiche, M; Beauquin, JL; Sochard, S; Serra, S; Reneaume, JM; Stouffs, P 
2020 
Society of Petroleum Engineers 
English 
In the present paper, we first developed and implemented the exergy analysis within an Integrated AssetModeling (IAM) platform to evaluate the overall energy efficiency and Greenhouse Gas (GHG) emissionsof a future offshore oil production system. The use of the same state function enables a direct comparison ofthe different irreversibilities that occur through the entire production system (drawdown losses, lift losses,Artificial lift and boosting systems losses, etc.) and thus, provides the necessary guidance for engineersto select the best solution. Then, we modeled and evaluated the performance of the oil production systemwith three artificial lift and boosting techniques, including multiphase boosting, gas lift, and ESP. In all thecases, liquid production has been maximized while respecting the same constraints. The exergy analysisenabled us to quantify for the first time the physical exergy supplied naturally by the reservoir in the form ofpressure (mechanical exergy) and temperature (thermal exergy). After that, we proposed a new methodologyto improve the design of petroleum production systems over their whole life. This methodology permits thesimultaneous evaluation of a multitude of development schemes by using generic models. Finally, the multi-period exergoeconomic optimization results highlight a performance gap, quite logical, between the mostcost-effective scheme identified and the most energy-efficient one. There are hence excellent opportunitiesfor progress by developing the exergy approach and digital tools for the selection and development ofgreener and more profitable production concepts, processes, and technologies. © 2020 Society of Petroleum Engineers. All rights reserved. 
exergy destruction; multi-period exergoeconomicoptimization; Oil & gas production systems; reducing CO2 emissions