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CNPC Uses an Iterative Two-Stage Convex Relaxation Approach to Operate Natural Gas Pipelines

Author

Listed:
  • Mengying Xue

    (Department of Industrial Engineering, Tsinghua University, Beijing, China 100084)

  • Tianhu Deng

    (Department of Industrial Engineering, Tsinghua University, Beijing, China 100084)

  • Dingzhi Liu

    (Oil and Gas Pipeline Engineering Department, China Petroleum Planning and Engineering Institute, Beijing, China 100083)

Abstract

China National Petroleum Corporation (CNPC), the largest oil and natural gas producer and supplier in China, plans annual and monthly natural gas production quantities, consumption levels, and transmission amounts. We developed an iterative two-stage convex relaxation approach to solve this challenging task. In the first stage, we estimated the physical parameters for pipelines according to a given set of gas flows and gas pressures. In the second stage, we used these parameters to solve for a new set of gas flows and gas pressures. Through numerical tests with the current pipeline network, the proposed solution approach can converge within a two percent relative error within five minutes. The solution approach is expected to generate an extra 2.1 billion Chinese yuan (CNY) for CNPC’s natural gas usage between 2016 and 2020.

Suggested Citation

  • Mengying Xue & Tianhu Deng & Dingzhi Liu, 2016. "CNPC Uses an Iterative Two-Stage Convex Relaxation Approach to Operate Natural Gas Pipelines," Interfaces, INFORMS, vol. 46(6), pages 533-546, December.
    • Handle: RePEc:inm:orinte:v:46:y:2016:i:6:p:533-546
    DOI: 10.1287/inte.2016.0867
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    References listed on IDEAS

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    Cited by:

    1. Wang, Guotao & Zhao, Wei & Qiu, Rui & Liao, Qi & Lin, Zhenjia & Wang, Chang & Zhang, Haoran, 2023. "Operational optimization of large-scale thermal constrained natural gas pipeline networks: A novel iterative decomposition approach," Energy, Elsevier, vol. 282(C).
    2. Jingkuan Han & Yingjun Xu & Dingzhi Liu & Yanfang Zhao & Zhongde Zhao & Shuhui Zhou & Tianhu Deng & Mengying Xue & Junchi Ye & Zuo-Jun Max Shen, 2019. "Operations Research Enables Better Planning of Natural Gas Pipelines," Interfaces, INFORMS, vol. 49(1), pages 23-39, January.
    3. Mengying Xue & Tianhu Deng & Zuo‐Jun Max Shen, 2019. "Optimizing natural gas pipeline transmission with nonuniform elevation: A new initialization approach," Naval Research Logistics (NRL), John Wiley & Sons, vol. 66(7), pages 547-564, October.

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