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The Effect of Different Drilling Fluids on Mechanical Friction
Sintef Petroleum AS.
Sintef Petroleum AS.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements.
Department of Petroleum Engineering, University of Stavanger.
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2017 (English)In: Journal of energy resources technology, ISSN 0195-0738, E-ISSN 1528-8994, Vol. 139, no 3, 034502Article in journal (Refereed) Published
Abstract [en]

A very important aspect in highly inclined wellbores is the mechanical friction. For extended reach drilling (ERD) and through tubing extended reach drilling (TTERD) this can be a limiting factor. Friction caused by the contact between the drill string and the well casing or borehole is dependent on the drilling weight and fluid properties. Drilling fluids play an important role in determining mechanical friction. The use of oil-based drilling fluids with higher lubricity can reduce torque and drag behavior and minimize stick and slip. Reducing mechanical friction will improve drilling efficiency in general, and will in particular enable longer reach for ERD wells. This paper presents results from experimental laboratory tests where the mechanical friction has been investigated. Friction behavior was investigated for different drilling fluids; water-based and oil-based drilling fluids both with and without solid particles. A pin on disk setup was used for these experiments where a spherical ended steel pin was slid against a rotating disk made of granite. The test results show that the mechanical friction in general is smaller with oil-based than water-based drilling fluids in the presence of solid particles.

Place, publisher, year, edition, pages
2017. Vol. 139, no 3, 034502
National Category
Tribology
Research subject
Machine Elements
Identifiers
URN: urn:nbn:se:ltu:diva-63243DOI: 10.1115/1.4035951ISI: 000399077300026OAI: oai:DiVA.org:ltu-63243DiVA: diva2:1093138
Note

Validerad; 2017; Nivå 2; 2017-05-05 (andbra)

Available from: 2017-05-05 Created: 2017-05-05 Last updated: 2017-05-05Bibliographically approved

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