Study on Generalized Optimization Model of Star-tree Oil & Gas Pipeline Network Layout

doi:10.11885/j.issn.1674-5086.2020.03.04.02

Abstract

Abstract: Oil & gas pipeline network has a complicated structure and large investment, which is an important part of oil & gas field construction. Therefore, optimizing the gathering and transportation pipeline network is very important for the oil & gas field to reduce the development cost. The star-tree type pipe network is widely used in the gathering and transportation system. Star-tree pipe network is widely used in gathering and transporting system. In view of the optimal layout of the star-tree pipe network, this paper carries out a study on the mathematical optimization models of the star-tree pipe network layout, and mainly focuses on the star-tree that has restrictions on the processing capacity and gathering radius of the gathering station in the pipeline network. Q model, R model and QR model of mixed integer linear programming with a large number of discrete variables have been established. Taking a real gas field and an oilfield as examples, we adopted the branch and bound method to solve the above model as a whole, and obtained the optimal topology structure, the location of the station facilities, and the location of the central processing facility under each scheme. At the same time, the pipeline network investment also can be able to obtain, thus proving the correctness and reliability of the models, which can guide the engineering construction of oil-gas fields. We further solved the QR model with a hierarchical optimization strategy, and compared the investment of hierarchical optimized pipe network and overall optimized pipe network. It is proved that the overall investment to solving the star-tree pipe network model is lower, which can guide the oil and gas field engineering construction.

Key words: oil & gas pipeline network, general models, mixed-integer linear programming, layout, optimization

CLC Number:

TE863

ZHOU Jun, ZHOU Liuling, LIANG Guangchuan, CHEN Chuan, ZHOU Xuan. Study on Generalized Optimization Model of Star-tree Oil & Gas Pipeline Network Layout[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2021, 43(2): 149-157.

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