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Application of Superparamagnetic Nanoparticle (SPM-NP) Heating in Wax Removal during Crude Oil Pipeline Pigging

Author

Listed:
  • Hanqing Zhang

    (College of Chemical Engineering, Fuzhou University, Fuzhou 350108, China
    Fujian Innovation Laboratory of Chemical Engineering, Quanzhou 362801, China)

  • Huiyuan Li

    (CNPC Research Institute of Safety Environment Technology, Beijing 102206, China)

  • Weidong Li

    (College of Chemical Engineering, Fuzhou University, Fuzhou 350108, China
    Fujian Innovation Laboratory of Chemical Engineering, Quanzhou 362801, China)

  • Jianguang Wang

    (Fujian Special Equipment Inspection and Research Institute, Fuzhou 350008, China)

  • Wenda Wang

    (PetroChina Marketing Company, Beijing 100007, China)

  • Yongjuan Zhang

    (CNPC Research Institute of Safety Environment Technology, Beijing 102206, China)

  • Lin Teng

    (College of Chemical Engineering, Fuzhou University, Fuzhou 350108, China
    Fujian Innovation Laboratory of Chemical Engineering, Quanzhou 362801, China)

  • Pengbo Yin

    (College of Chemical Engineering, Fuzhou University, Fuzhou 350108, China
    Fujian Innovation Laboratory of Chemical Engineering, Quanzhou 362801, China)

  • Xin Huang

    (College of Chemical Engineering, Fuzhou University, Fuzhou 350108, China
    Fujian Innovation Laboratory of Chemical Engineering, Quanzhou 362801, China)

Abstract

Mechanical pigging is a major wax removal technique in crude oil pipeline transportation. To lower the risk of pig stalling accidents in pigging, a superparamagnetic nanoparticle (SPM-NP) pigging system that consists of an electromagnetic pig and nanopaint is designed to soften the wax deposit and reduce the wax resistive force. During pigging, the induction coil on the pig generates an alternating magnetic field, which induces heat production of the nanopaint on the pipe wall. The COMSOL software is used to simulate the temperature distribution of the wax layer. Yield stress measurements reveal that the wax layer yield stress is nearly linearly correlated to temperature. Compared with a regular pig, the SPM-NP pigging system reduces the wax resistive force by up to 20~40%, with an acceptable electrical current intensity of about 20 A in the given cases. Multiple factors affecting the wax layer temperature were analyzed. SPM-NP heating could be a promising technique for wax remediation and hydrate prevention.

Suggested Citation

  • Hanqing Zhang & Huiyuan Li & Weidong Li & Jianguang Wang & Wenda Wang & Yongjuan Zhang & Lin Teng & Pengbo Yin & Xin Huang, 2022. "Application of Superparamagnetic Nanoparticle (SPM-NP) Heating in Wax Removal during Crude Oil Pipeline Pigging," Energies, MDPI, vol. 15(17), pages 1-14, September.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:17:p:6464-:d:906625
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