Research on Screw Pump Rotor Eccentricitys Influence on Sucker Rod Partial Abrasion through Contact Analysis

Abstract:

Through the establishment of contact element simulated the contact between sucker rod and oil pipe. The deformation of sucker rods in oil pipe that caused by the screw pump rotor eccentricity has been researched by the application of transient dynamics analysis. Results show that screw pump rotor eccentricity is one of the reasons which cause rod and oil pipe contact resulting in partial abrasion. Deformation of the sucker rods caused by the rotor eccentricity is mainly concentrated on the bottom of rods, so in order to mitigate partial abrasion, rod centralizer arrangement at the bottom of rods should be strengthened, or change the connection mode between the sucker rod and screw pump rotor to eliminate the effect of the sucker rod deformation caused by rotor eccentric motion.

• Periodical: Advanced Materials Research (Volumes 690-693)
• Pages: 1955-1959
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.690-693.1955
• Online since: May 2013
• Authors: Juan Zhu, Long Qing Zou, Xiao Jing Yuan, Lu Wei Zhang
• Keywords: Contact, Partial Abrasion, Rotor Eccentricity, Screw Pump well

References

[1] Jie Sun, Jing Zhu, Chuangyu Jiao. New Measures to Partial Griding of Strew Pump Well[J]. Oil-Gasfield Surface Engineering, Vol.25 (2006), pp.17-18.

[2] Yunfei Li, Guofu Sheng, Huazhao Li, etc. Wear Reason and Control Measures of Screw Pump Well Rod Pipe[J]. Foreign Oilfield Engineering, Vol.22 (2006), pp.43-45.

[3] Xiuting Han, Xiuling Wang, Zhenqiang Jiao. Oil Production Principle and Application of Screw Pump[M]. Harbin: Harbin Engineering University Publishing House, 1998.

[4] Jiamin Zhang. Design Method and Application of Screw Pump Rod String[M]. Beijing: Petroleum Industry Publishing House, 2002.

[5] Zhongming Zhang, Hongzhao Liu, Jinchen Wang. Damping of materials and progress in the damping materials[J]. Functional Materials, Vol.32 (2001), pp.227-230.