Improvement of Rheological Properties of Little Noble Varieties from Boa Vista Bentonites - Part I: Experimental Design

Verônica Cavalcanti Marques; Iago Bruno Campos Dias; Jefferson Bezerra Alves; Liszandra Fernanda Araújo Campos; Ricardo Peixoto Suassuna Dutra; Heber Sivini Ferreira

doi:10.4028/www.scientific.net/MSF.798-799.27

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HomeMaterials Science ForumMaterials Science Forum Vols. 798-799Improvement of Rheological Properties of Little...

Improvement of Rheological Properties of Little Noble Varieties from Boa Vista Bentonites - Part I: Experimental Design

Abstract:

The noble variety of the Boa Vista bentonites became scarce, originating fluids which do not answer the Petrobras specifications. The utilization of a blending with available samples have been used in industry successfully. Thus, the present work aims to use the mixture modeling methodology with design in simplex-centroid network and further purification by hydrocycloning, trying to optimize rheological properties of dispersions prepared with little noble clays, obtaining drilling fluids that attend the normative requirements. Initially, the rheological behavior of dispersions on each of the five clays, activating them in proportions of 50, 75, 100, 125 e 150 meq of Na₂CO₃/100 g of dry clay. After result analyzing, the mixtures were formulated, using experimental planning with the five clays, but with activation in proportions of 100 and 125 meq of Na₂CO₃/100 g of dry clay.

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Periodical:

Materials Science Forum (Volumes 798-799)

Pages:

27-32

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.798-799.27

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Online since:

June 2014

Authors:

Verônica Cavalcanti Marques*, Iago Bruno Campos Dias, Jefferson Bezerra Alves, Liszandra Fernanda Araújo Campos, Ricardo Peixoto Suassuna Dutra, Heber Sivini Ferreira

Keywords:

Bentonite, Design, Mixture

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References

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