A Rheological Characterization and Parametric Analysis of a Bentonite Sample


KÖK M. V.

ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS, vol.33, no.4, pp.344-348, 2011 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 33 Issue: 4
  • Publication Date: 2011
  • Doi Number: 10.1080/15567030802612184
  • Title of Journal : ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
  • Page Numbers: pp.344-348
  • Keywords: bentonite, drilling fluid, flow behavior, parametric analysis, rheology, BASE DRILLING-FLUIDS

Abstract

During the initial stage of this research, properties (x-ray, chemical analysis, swelling test, cation exchange capacity, and amount of clay) of bentonite samples were determined. The concentration effect on the rheological properties of bentonite suspension was determined at six different concentrations (20, 22.5, 24, 26, 28, and 30 gr/350 ml). Fann viscometer dial readings were measured at ten varying rates of shear600, 300, 200, 100, 60, 30, 20, 10, 6, and 3 rpm. A three-parameter Robertson-Stiff model, describing the flow of non-Newtonian fluid by mathematical equations in terms of shear rate and shear stress, were studied; parametric analysis was also performed.