Modeling and Numerical Simulation of Material Science, 2018, 8, 1-19 http://www.scirp.org/journal/mnsms ISSN Online: 2164-5353 ISSN Print: 2164-5345 DOI: 10.4236/mnsms.2018.81001 Jan. 31, 2018 1 Modeling and Numerical Simulation of Material Science Developing an Easy-to-Use Simulator to Thermodynamic Design of Gas Condensate Reservoir’s Separators Ahmadreza Ejraei Bakyani 1* , Samira Heidari 2 , Alireza Rasti 3 , Azadeh Namdarpoor 1 1 Department of Petroleum Engineering, School of Chemical, Petroleum, and Gas Engineering, Shiraz University, Shiraz, Iran 2 Department of Chemical Engineering, School of Chemical, Petroleum, and Gas Engineering, Shiraz University, Shiraz, Iran 3 Petropars Operation & Management Company, Shiraz, Iran Abstract Separator design in petroleum engineering is so important because of its im- portant role in the evaluation of optimum parameters and also to achieve to maximum stock tank liquid. However, no simulator exists that simultaneously and directly optimizes the parameters “pressure”, “temperature”, and so on. On the other hands, Commercial simulators fix one parameter and vary another parameter to achieve the optimum conditions. So, they need long-time simulation. Moreover, gas condensate reservoirs, like another re- servoirs, have this problem as well. In present paper, a self-developed simula- tor applied in the optimized design of gas condensate reservoir’s separators by determining optimized pressure, temperature, and number of separators in order to obtain maximized tank liquid volume and minimized tank liquid density utilizing Matlab software and other commercial simulators such as Aspen-Plus, Aspen-Hysys, and PVTi to do a comparison. Also, each software was separately tested with one, two, and three separators to obtain the opti- mum number of separators. Additionally, Peng-Robinson equation of state (PR EOS) has been applied in the simulation. For simulation input, a set of field data of gas condensate reservoir has been utilized, as well. The results show a good compatibility of this simulator with other simulators but in so little runtime (this simulator calculates the optimum pressure and tempera- ture in a wide range of pressures and temperatures with the help of a simulta- neous optimization algorithm in one stage) and the highest stock tank liquid is calculated with this simulator in comparison to other simulators. Also, with the help of this simulator, we are able to obtain the optimum pressure, tem- perature, and the number of separators in the gas condensate reservoir’s se- parators with any desired properties. Finally, this simulator optimizes the temperatures for each separator and obtains very good results despite the other simulators that fix temperatures for all separators in most times. How to cite this paper: Ejraei Bakyani, A., Heidari, S., Rasti, A. and Namdarpoor, A. (2018) Developing an Easy-to-Use Simula- tor to Thermodynamic Design of Gas Condensate Reservoir’s Separators. Model- ing and Numerical Simulation of Material Science, 8, 1-19. https://doi.org/10.4236/mnsms.2018.81001 Received: December 26, 2017 Accepted: January 28, 2018 Published: January 31, 2018 Copyright © 2018 by authors and Scientific Research Publishing Inc. This work is licensed under the Creative Commons Attribution International License (CC BY 4.0). http://creativecommons.org/licenses/by/4.0/ Open Access