tOrganoclay (OC) loaded macroemulsions are systems used worldwide as drilling-fluid in oil extraction.SAXS and viscosity measurements (Rheo-SAXS) are simultaneously performed on OC loaded water indodecane emulsions (W/D = 10/90), at different shear rates in the range 0.1–1000 s?1. The role of three OC(VG69, Bentone and Geltone) was investigated at different concentrations ( 2% (m/m) and surfactants.
These emulsions exhibit a shearthinning behavior with a yield stress. The dispersion state of the clay mineral particles inferred, with afit of SAXS profiles using a scattering model of stacking of N core-layer platelets. The structure of claymineral particles is unchanged under flow and clay mineral particles are isotropically dispersed under ashear rate
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