These are Cationic Polymers Supplied in liquid form. CRISTOL Cationic Shale Inhibitor has excellent handling properties, mixes easily and dissolves quickly when added to water based fluids. It is used primarily for shale control and clay inhibition. The product reduces hydration rates of reactive shales.
The product functions primarily by neutralizing charges in the shales and clays by decreasing the shale tendency to absorb water, swell and slough off. It improves borehole stability and helps promote gauge hole. It can be used in fresh water and brines, including divalent brines.