To read the full version of this content please select one of the options below:

Tribological behaviors of water-based drilling mud with oleic acid-filled microcapsules as lubricant additives for steel-steel contact

Min Ji (State Key Laboratory of Oil and Gas Resources and Engineering, College of Mechanical and Transportation Engineering, China University of Petroleum, Beijing, China)
Shuhai Liu (State Key Laboratory of Oil and Gas Resources and Engineering, College of Mechanical and Transportation Engineering, China University of Petroleum, Beijing, China)
Huaping Xiao (State Key Laboratory of Oil and Gas Resources and Engineering, College of Mechanical and Transportation Engineering, China University of Petroleum, Beijing, China)

Industrial Lubrication and Tribology

ISSN: 0036-8792

Article publication date: 27 March 2020

Issue publication date: 27 March 2020

Abstract

Purpose

The purpose of this paper is to study the tribology behavior of steel–steel contact under the lubrication of water-based drilling mud with different oleic acid-filled microcapsules as lubricant additives.

Design/methodology/approach

A ball-on-disc tribometer was used to evaluate the lubrication properties of the steel–steel contact. The wear tracks of the worn surfaces were observed by a scanning electron microscope.

Findings

Results show that the dependence of both friction and wear on the category of additives shares a consistent pattern. In contrast to oleic acid and empty microcapsules, oleic acid-filled microcapsules achieve the best tribological performance which is related to the lubricant effect of oleic acid and the isolation and rolling abilities of microcapsules.

Practical implications

This study provides a helpful method of encapsulated lubricant additives to prolong lubrication performance for steel–steel contact.

Originality/value

This study has applied microcapsules to improve the tribological properties of drilling mud.

Peer review

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-08-2019-0320/

Keywords

Acknowledgements

The authors acknowledge the support by National Natural Science Foundation of China (No. 51575529) and Tribology Science Fund of State Key Laboratory of Tribology (No. SKLTKF17B10).

Citation

Ji, M., Liu, S. and Xiao, H. (2020), "Tribological behaviors of water-based drilling mud with oleic acid-filled microcapsules as lubricant additives for steel-steel contact", Industrial Lubrication and Tribology, Vol. 72 No. 7, pp. 835-843. https://doi.org/10.1108/ILT-08-2019-0320

Publisher

:

Emerald Publishing Limited

Copyright © 2020, Emerald Publishing Limited