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

Tribological behaviors of water-based drilling mud with oleic acid-filled microcapsules as... 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/approachA 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.FindingsResults 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 implicationsThis study provides a helpful method of encapsulated lubricant additives to prolong lubrication performance for steel–steel contact.Originality/valueThis study has applied microcapsules to improve the tribological properties of drilling mud.Peer reviewThe peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-08-2019-0320/ http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Industrial Lubrication and Tribology Emerald Publishing

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

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Publisher
Emerald Publishing
Copyright
© Emerald Publishing Limited
ISSN
0036-8792
DOI
10.1108/ilt-08-2019-0320
Publisher site
See Article on Publisher Site

Abstract

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/approachA 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.FindingsResults 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 implicationsThis study provides a helpful method of encapsulated lubricant additives to prolong lubrication performance for steel–steel contact.Originality/valueThis study has applied microcapsules to improve the tribological properties of drilling mud.Peer reviewThe peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-08-2019-0320/

Journal

Industrial Lubrication and TribologyEmerald Publishing

Published: Mar 27, 2020

Keywords: Microcapsule; Water-based lubrication; Drilling mud; Oleic acid lubricant

References