Skip to main content
SpringerLink
Log in

Leakage Flow Mechanism of Gap Seal Structure of Oil well Pump with Rectangular Groove

  • Published:
Chemistry and Technology of Fuels and Oils Aims and scope

For oil wells with high sand content, traditional oil well pumps easily get stuck. Increasing the gap between the plunger and the pump cylinder can effectively prevent the sticking, but the gap leakage also increases, resulting in a decrease in the volumetric efficiency of the pump. As shown in this paper, when a rectangular groove is formed in the plunger of the oil well pump, it can significantly reduce the leak rate. In order to reveal the flow resistance mechanism of the gap seal structure with rectangular groove and the reasonable design of the seal structure parameters, the flow characteristics in the gap seal structure with rectangular groove are studied by CFD technology. The results show that the gap seal structure with rectangular groove reduces the leakage amount by 87% compared with the prototype gap seal structure. The optimal number of rectangular grooves is 3-4. The sealing effect of the rectangular groove at the inlet of the pump is better than that at the pump outlet. The rectangular groove spacing has little effect on the leak rate.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1.
Fig. 2.
Fig. 3.
Fig. 4.
Fig. 5.
Fig. 6.
Fig. 7.

Similar content being viewed by others

References

  1. Liu Yang and Chen Guanrong, “Optimal parameters design of oilfield surface pipeline systems using fuzzy models.”Inform. Sci.,120(1), 13-21 (1999).

    Google Scholar 

  2. Liu YangÿCheng Qinglinet al., “Multi-objective optimization of energy consumption in crude oil pipeline transportation system operation based on energy loss analysis,” Neurocomputing, 332(7), 100-110 (2019).

    Google Scholar 

  3. R Kirk, S. Gordonk and K. Baheti, “Evaluation of floating ring seals for centrifugal compressors using the finite element method,” Trans. ASME, 121(1), 131-136 (1999).

    Google Scholar 

  4. T. W. Ha, Y. B. Lee, and C. H. Kim, “Leakage and rotor dynamic analysis of a high-pressure floating ring seal in the turbo pump unit of a liquid rocket engine,” Tribol. Int., 35(5), 153-161 (2002).

    Article  Google Scholar 

  5. W. B. Duan, F. Chu, C. Kim, and Y. Lee, “A bulk-flow analysis of static and dynamic characteristics of floating ring seals,” Tribol. Int., 40(3), 470-478 (2007).

    Article  CAS  Google Scholar 

  6. X. X. Zhang, M. M. Hao, and S. G. Xiang, “Performance analysis of the spiral groove floating ring seal based on CFD analysis,” Lubric. Eng.., 34(5), 72-75 (2009).

    Google Scholar 

  7. J. A. Demko and D. L. Rhode, “The prediction and measurements of incompressible flow in a labyrinth seal,” J. Eng. Gas Turbines Power, 33(2). ,18-20 (1989).

    Google Scholar 

  8. M. M. Sindir,”Impeller, shroud to casing leakage flow simulations in the space shuttle main engine hinge pressure foal pump,”HeatTransf. Fluid Flow Rotor. Mach., 33(5), 411-423 (1987).

    Google Scholar 

  9. E. A. Baskharone and N. J. Wyman, “Primary/leakage flow interaction in a pump stage.” J. Fluid Eng., 121(4), 133-138(1999).

    Article  Google Scholar 

  10. M. Lu, “Research and simpatico on the gap type servo hydraulic cylinder seals,”Thesis, Wuhan University of Science and Technology, Wuhan (2010).

  11. X. L. Liu and P. Yang. “Analysis of power law fluid thermal elastohydrodynamic lubrication,” Lubric. Eng., 32(8), 19-23(2007).

    Google Scholar 

  12. Z. H. Li, “The simulation study on the clearance seal of the directional slide valve and the opening process of one-way valve of the water injection and booster pump,” Thesis, Daqing Petroleum Institute, Daqing (2010).

  13. R. Jiang. “Study on sealing performance of clearance seals,” Thesis, Northeast Petroleum University, Daqing (2012).

  14. V Yakhot and S. Orszag, “Renormalization group analysis of turbulence basic theory,” J. Sci. Comput., 1, 43-51 (1998).

    Google Scholar 

  15. G. X. Cui, C. X. Xu, and Z. S. Zhang, “Progress in large eddy simulation of turbulence flows,”Acta Aerodyn. Sin., 2(22),121-129 (2004).

    Google Scholar 

  16. H. Chen and X. Z. Sun, “Investigation in the leakage and friction of low friction pump,” Clin. Pet Mach., 41(3), 11-14 (2013).

    Google Scholar 

  17. J. Jiang, G. Y. Zhou, L. C. Zeng, C. C. Zhan, and S. G. Fu, “Simulation and analysis of leakage for clearance seal of hydraulic cylinder,”Lubric. Eng., 38(7), 75-79 (2013).

    Google Scholar 

  18. H. K. Versteeg and W. Malalasekera, An Introduction to Computational Fluid Dynamics. The Finite Volume Method, Wiley, NewYork (1995).

  19. B. Lauder and D. Spalding, Mathematical Models of Turbulence, Academic Press, Waltham (1972).

    Google Scholar 

Download references

Acknowledgements

This project was funded by Natural Science Foundation of Heilongjiangprovince (No.LH2019E018), China Postdoctoral Science Foundation (No.2018T110268; No.2018M641804), Natural Science Foundation of China (No.51974327: No.51774091: No.51607035), and Daqing Science and Technology Plan Project (No.2d_2019_20).

CONFLICT OF INTEREST

The authors declare that there are no conflict of interest anong themselves.

Author information

Authors and Affiliations

  1. School of Petroleum Engineering, China University of Petroleum, Beijing, China

    Chaodong Tan & Gang Feng

  2. School of Mechanical Science and Engineering, Northeast Petroleum University, Daqing, China

    Zi-ming Feng, Wei Cui & Xiufen Xu

  3. Beijing Yadan Petroleum Technology Co., Ltd., Beijing, China

    Gang Feng

Authors
  1. Chaodong Tan
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Gang Feng
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Zi-ming Feng
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Wei Cui
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. Xiufen Xu
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding authors

Correspondence to Zi-ming Feng or Wei Cui.

Additional information

Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 2, pp.76 — 82, March—April, 2020.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Tan, C., Feng, G., Feng, Zm. et al. Leakage Flow Mechanism of Gap Seal Structure of Oil well Pump with Rectangular Groove. Chem Technol Fuels Oils 56, 243–253 (2020). https://doi.org/10.1007/s10553-020-01135-5

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10553-020-01135-5

Keywords

Search

Navigation