Experimental measurement and thermodynamic prediction of CO2 solubility in water-based drilling fluids under high-temperature and high-pressure conditions
During deep and ultra-deep drilling, CO2 influx can alter gas–liquid phase partitioning in water-based drilling fluids and thereby affect wellbore multiphase-flow and pit-volume responses. To improve the description of this behavior, CO2 solubility was measured for three field KCl-based polysulfonate water-based drilli...