Oilfield treated oil pipeline network is the link connecting the upstream oilfields and the downstream refineries. Due to the differences in operating costs and transportation fee between different pipelines and the fluctuation in the demand and sales prices of the treated oil, there is an optimal flow allocation plan for the pipeline network to make the oilfield company obtain the highest social and economic benefit. In this study, a mixed integer nonlinear programming (MINLP) model is developed to determine the optimal flow rate allocation plan of the large-scale and complex treated oil pipeline network, and both the social and economic benefits are considered simultaneously. The optimization objective is the multi-objective which includes the largest user satisfaction and the highest economic benefit. The model constraints include the oilfield production capacity, refinery demand, pipeline transmission capacity, flow, pressure, and temperature of the node and station, and the pipeline hydraulic and thermal calculations. Python 3.7 is utilized for the programming of the off-line calculation procedure and the MINLP model, and GUROBI 9.0.2 is served as the MINLP solver. Moreover, the model is applied to a real treated oil pipeline network located in China, and three optimization scenarios are analyzed. For social benefit, the values of the user satisfaction of each refinery and the total network are 1 before and after optimization for scenarios 1, 2, and 3. For economic benefit, the annual revenue can be increased by 0.227, 0.293, and 0.548 billion yuan after the optimization in scenario 1, 2, and 3, respectively.
Declaration of competing interest
There are no conflicts of interest to declare about the manuscript “An optimal flow rate allocation model of the oilfield treated oil pipeline network” by Li, Fan, Wang, Long, He, Wang, Cheng, Huang, Huang, Yu.
Acknowledgement
The authors wish to thank the Natural Science Foundation of Chongqing, China (No. cstc2021jcyj-msxmX0918), the Science and Technology Research Program of Chongqing Municipal Education Commission (No. KJQN202101545), the National Natural Science Foundation of China (52302402), and the Research Foundation of Chongqing University of Science and Technology (ckrc2021003) for providing support for this work.
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