Analysis of the Force Acting on the Sucker Rod by Polymer Solution

Lili Liu, Shuren Yang, Lihui Wang, Di Xu, Liang Zhao, Yue Cui

.
Daqing Oilfield Tianyu Engineering Design Co., Ltd., Daqing, China.
Department of Petroleum Engineering, Northeast Petroleum University, Daqing, China.

DOI: 10.4236/ojfd.2014.42009                

Abstract

With selecting lower-convected Maxwell constitutive equation, polymer solution flow equation in eccentric annulus is established. And the distribution rule of the force acting on the sucker rod by polymer solution has been gained. The result shows the eccentric ratio and the movement velocity of the sucker rod are major influence factors on the radial force. The greater the ratio is, the greater the force of sucker rod is. Then the eccentric wear is easier to appear.

Keywords

Viscous-Elastic Fluids, Eccentric Annulus, Normal Stress, Radial Force, Eccentric Wear

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	Patankar, S.V. (1983) The Numerical Calculation of Heat Transfer and Fluid Flow. Zhang Zheng Translation, Science Press, Beijing, 131-148.
[2]	Yang, S.R. (1997) Velocity Profile of Axial-Laminar Flow for Power-Law Fluids through Eccentric Annuli. Daqing Petroleum Institute, 3, 122-124.
[3]	Han, S.F. (2000) Non-Newtonian Fluid Constitutive Equation and Calculative Analytic Theory. Science Press, Beijing, 145-162.