EXPERIMENTAL DESIGN APPLIED TO THE STUDY OF COMPOSITION EFFECT OF BENTONITE ON THE RHEOLOGY OF DRILLING FLUIDS. PT.2. TERNARY COMPOSITIONS

The composition effect of ternary bentonite mixtures on the rheology of drilling fluids was studied. The component proportions in the ternary clay mixtures were defined by experimental design and then adjusted by regression models relating apparent and plastic viscosities and water loss, with the pr...

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Published inCerâmica (São Paulo) Vol. 53; no. 325; pp. 68 - 73
Main Authors Campos, L F A, Amorim, L V, Ferreira, H C
Format Magazine Article
LanguagePortuguese
Published 01.01.2007
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Summary:The composition effect of ternary bentonite mixtures on the rheology of drilling fluids was studied. The component proportions in the ternary clay mixtures were defined by experimental design and then adjusted by regression models relating apparent and plastic viscosities and water loss, with the proportion of each clay. The application of mixture experimental design, including ternary composition, response surface methodology, graphic and mathematical optimisation, allowed a strip of compositions to be delimited that favoured an improvement of the rheological properties of the drilling fluids. 13 refs.
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ISSN:0366-6913