PURELUBRI® is an amine-based additive for the reduction of torque, drag and potential for differential sticking by reducing the coefficient of friction in all types of water-based drilling fluids. It decreases torque and drag thus increasing ROP in WBM, produced water or brine in highly-deviated and horizontal drilling applications. PURELUBRI® is a cost-effective, high-performance lubricant and stable at high pH levels. It is tolerant to high levels of calcium and silicates. PURELUBRI® is biodegradable and does not fluoresce.