Transporte de sólidos en flujo anular vertical no-newtoniano de soluciones de biopolímeros

Translated title of the contribution: Transport of solids in a non-newtonian annular vertical flow of biopolymer solutions

M. R. Rojas, C. E. Mendoza, S. Siquier, N. Ramírez, A. J. Müller, A. E. Sáez

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

This work presents an experimental study of solids suspension in upward annular flow using non-Newtonian biopolymer solutions as liquid phases. The biopolymers employed were xanthan and guar gums, and the solid phase consisted of silica sand with a mean particle size of 250 μm. The experimental equipment is a vertical concentric pipe system, with 3 m of height and a hydraulic diameter of 0.15 m, simulating the drilling process at room temperature without the drill rotation effects. The annular velocity, concentration of load and polymer were the most important variables studied. It was found that the transport ratio allows a simple quantification of the effects of the polymer as a viscosifying additive in drilling muds, independently of the solids loading, xanthan gum provides a better suspension capacity than Guar gum at similar concentrations, especially at low flow velocities, while at high velocities the solids transport is similar for both polymeric solutions, due to their pseudoplasticity.

Translated title of the contributionTransport of solids in a non-newtonian annular vertical flow of biopolymer solutions
Original languageSpanish
Pages (from-to)57-69
Number of pages13
JournalRevista de la Facultad de Ingenieria
Volume21
Issue number1
StatePublished - Dec 1 2006

Keywords

  • Annular flow
  • Guar gum
  • Liquid-solid flow
  • Non-Newtonian fluid
  • Xanthan gum

ASJC Scopus subject areas

  • Engineering(all)
  • Earth and Planetary Sciences(all)

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  • Cite this

    Rojas, M. R., Mendoza, C. E., Siquier, S., Ramírez, N., Müller, A. J., & Sáez, A. E. (2006). Transporte de sólidos en flujo anular vertical no-newtoniano de soluciones de biopolímeros. Revista de la Facultad de Ingenieria, 21(1), 57-69.