Composições de argilas organofílicas como viscosificante para fluidos de perfuração de poços de petróleo base parafina.

Abstract

Today, the country is the world leader in ultra-water exploration and success of drilling of wells for oil and the cost depends largely on the properties of the drilling fluid, especially when it comes to very deep wells. Thus this work aimed to formulate the drilling fluid paraffin base, based on standard formulations of fluids, using the clay as viscosificante / organophilic clay compositions of obtained. It was found that the thermal analysis and X-ray difrações show that bentonite clays are predominantly, with little contamination of accessory minerals, the use of salts led to the process of delamination of clays with basal spacing of about 3.5 nm. The fluids studied have rheological properties outside of the standards recommended by the API and below the standard properties of the fluid. So there was a need to expand the studies for fluids based on ester and diesel, to the improvement of rheological behavior and a better interaction of organophilic obtained with the organic medium.