TY - JOUR
T1 - Pressure pulsation investigation in an electrical submersible pump based on Morlet continuous wavelet transform
AU - Yang, Yang
AU - Zhou, Ling
AU - Han, Yong
AU - Hang, Jianwei
AU - Lv, Wanning
AU - Shi, Weidong
AU - He, Zhaoming
AU - Pan, Bo
N1 - Funding Information:
The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This work was supported by the National Natural Science Foundation of China (Grant Nos. 51979138, 52079058), Nature Science Foundation for Excellent Young Scholars of Jiangsu Province (Grant No. BK20190101), China Postdoctoral Science Foundation (Grant No. 2020M681520), Jiangsu Planned Projects for Postdoctoral Research Funds (Grant No. 2020Z031) and the funding for Postgraduate Research & Practice Innovation Program of Jiangsu Province (Grant No.KYCX18_2238).
Publisher Copyright:
© IMechE 2021.
PY - 2021/11
Y1 - 2021/11
N2 - Electrical Submersible Pumps (ESP) are one of the most reliable and efficient ways to lift oil or water from the ground or deep-sea to the surface. How to reduce the pressure pulsation and increase reliability is a challenging issue in the ESP design processes. In this study, a typical three-stage ESP model was selected as the research object. Based on numerical calculations and validation tests, the flow-field distribution mechanism within the dynamic and static interference zones of multi-stage ESP was investigated. Meanwhile, the inter-stage variability of pressure pulsation characteristics within the main hydraulic components was explored by Morlet continuous wavelet transform. The results showed that the numerical predicted performance has an excellent agreement with the experimental results, which confirms the accuracy of the numerical calculations. The time-domain characteristics of pressure pulsation at each monitoring location within the ESP showed high disorder due to the inter-stage propagation and coupling of the pressure pulsations. The low-frequency signal in the pressure pulsation signal had not only a cascading superposition of intensity, but also a significant phase difference. It was found that the main form of propagation between pulsating signal levels is the low-frequency signal. This work may facilitate the reduction or control of the pressure pulsations and thus improve the operation stability of ESP.
AB - Electrical Submersible Pumps (ESP) are one of the most reliable and efficient ways to lift oil or water from the ground or deep-sea to the surface. How to reduce the pressure pulsation and increase reliability is a challenging issue in the ESP design processes. In this study, a typical three-stage ESP model was selected as the research object. Based on numerical calculations and validation tests, the flow-field distribution mechanism within the dynamic and static interference zones of multi-stage ESP was investigated. Meanwhile, the inter-stage variability of pressure pulsation characteristics within the main hydraulic components was explored by Morlet continuous wavelet transform. The results showed that the numerical predicted performance has an excellent agreement with the experimental results, which confirms the accuracy of the numerical calculations. The time-domain characteristics of pressure pulsation at each monitoring location within the ESP showed high disorder due to the inter-stage propagation and coupling of the pressure pulsations. The low-frequency signal in the pressure pulsation signal had not only a cascading superposition of intensity, but also a significant phase difference. It was found that the main form of propagation between pulsating signal levels is the low-frequency signal. This work may facilitate the reduction or control of the pressure pulsations and thus improve the operation stability of ESP.
KW - Electrical submersible pump
KW - numerical simulation
KW - pressure fluctuation
KW - unsteady flow
UR - http://www.scopus.com/inward/record.url?scp=85105920853&partnerID=8YFLogxK
U2 - 10.1177/09544062211000077
DO - 10.1177/09544062211000077
M3 - Article
AN - SCOPUS:85105920853
VL - 235
SP - 6069
EP - 6079
JO - Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science
JF - Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science
SN - 0954-4062
IS - 22
ER -