Effect of Flow Characteristics of Polymer Flooding Produced Liquid on Attrition of Sucker Rob and Tube

Abstract:

Because of complex flow characteristics, polymer flooding produced liquid can bring many problems such as serious eccentric wear of rod and tube, breaking and divorcing of rod, and shortened cycle of pump-check. Flow resistance experiment was carried out aimed at these problems. Experimental results show that on-way resistance that sucker rod acts on polymer flooding produced liquid mainly depends on the viscosity of liquid and its elasticity can be ignored; Local resistance caused by couplers and centralizers is mainly related to the velocity of produced liquid, while the effect brought by mass concentration can be neglected; Resistance that pump valve endued and rate of flow agree to the exponential law; Total resistance of pump valves is generated mainly by down-valve and the law of resistance that water and polymer solution act on valves are similar. The problems that eccentric wear of rods and tubes is serious and the cycle of pump-check is shortened are not completely caused by up stress increasing after polymer flooding.

• Periodical: Advanced Materials Research (Volumes 706-708)
• Pages: 526-529
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.706-708.526
• Online since: June 2013
• Authors: Li Ping Guo, Lei Wang
• Keywords: Eccentric Wear of Sucker Rod, Eccentric Wear of Tube, Flow Characteristic, Polymer Flooding, Produced Liquid

References

[1] MA D.Z. Structure and Properties of Polymers. Science Press, Beijing. 1999.238~252.

[2] Han S.F. Constitutive Equation and Computational Ananlytical Theory of On-Newtonian Fluids. Sincese Press, Beijing. 2000.59~75.

[3] Han H.S., Wei Z.S. and Cui H.Q. Petroleum Engineering Non-Newtonian Fluid Mechanics. Harbin Institute of Technology Press, Harbin. 1993.20~115.