Paper Title:
Friction and Wear Behavior of Sucker Rod and Tubing String in the Presence of Oil Field Wastewater as the Lubricating Medium
  Abstract

An MG-2000 high-speed and high-temperature friction-abrasion testing machine was used to evaluate the friction and wear behaviors of AISI1045 steel sucker rod sliding against J55 tubing string and J55 tubing strings coated with spray-welded wear-resistant coatings of various thicknesses in a ring-on-ring configuration and under the lubrication of oilfield wastewater as the lubricating medium. The worn surface morphologies of the sucker rod specimens coupled with the J55 tubing string and the J55 tubing string coated with the wear-resistant coating were observed with a scanning electron microscope. As the results, it was effective to increase the wear-resistance of the frictional pair with the addition of the wear-resistant coatings on the tubing string surface. The wear-resistant coating of a proper thickness also contributed to reducing the friction coefficient to some extent, which was helpful to reduce the friction force between the sucker rod and tubing string pair and increase the service lifetime of the pair. The decreased wear rates of the sucking rod specimens coupled with the tubing string specimens coated with the wear-resistant coating of a proper thickness were attributed to the action of the coating in decreasing adhesion wear. Moreover, the tubing string specimen recorded little difference in wear rate at normal temperature and 60°C. However, the sucker rod specimen registered as lightly larger wear rate at 60°C than at room temperature, which could be attributed to the enhanced adhesion wear and mild corrosive wear at elevated temperature. It was imperative to properly control the thickness of the wear-resistant coating on the tubing string surface so as to bring its friction-reducing and antiwear action into effect.

  Info
Periodical
Advanced Materials Research (Volumes 156-157)
Edited by
Jingtao Han, Zhengyi Jiang and Sihai Jiao
Pages
1343-1346
DOI
10.4028/www.scientific.net/AMR.156-157.1343
Citation
H. X. Wang, N. H. Hou, Y. X. Liu, "Friction and Wear Behavior of Sucker Rod and Tubing String in the Presence of Oil Field Wastewater as the Lubricating Medium", Advanced Materials Research, Vols. 156-157, pp. 1343-1346, 2011
Online since
October 2010
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$32.00
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