Mechanism and Control of Eccentric Wear of Sucker Rod

Abstract:

The issue of eccentric wear of sucker rod is not only reduce the strength of the sucker rod that results to sucker rod breaking, but also wear out the pipe leading to leakage of tubing, which impact the regular production of the well. This paper aims at the popular issue in-site, analyze the factors such as wellbore deviation, stroke and fluid viscosity, tested the effect of water content, submergence on the eccentric wear by the laboratory experiment. The mechanism of eccentric wear of sucker rod is studied based on the factors impact the deformation under the stress and displacement constraints. An advanced technique is proposed to prevent eccentric wear based on the theory of hydraulic lubrication theory. It can make wedge form gap formed between sucker rod and tubing with the special tools, so that prolong the life of the well.

• Periodical: Applied Mechanics and Materials (Volume 528)
• Pages: 232-236
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.528.232
• Online since: February 2014
• Authors: Han Jin*, Jing Zhang, Yuan Yuan Zhang
• Keywords: Eccentric Wear, Inclination, Stress Analysis, Sucker Rod

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