Experiments and modeling of CO2 solubility in water-based and oil-based drilling fluids

An experimental apparatus has been developed to measure the CO 2 solubility in water, brines, polymer solutions, white oil and drilling fluids using sample analysis method. The results show that electrolytes can significantly reduce of water salting-out effect be enhanced by increasing molar concentration salt ions. influences different polymers are similar, which gas a certain extent. Furthermore, oil-based fluid is larger than water-based fluid. Considering complicated interactions between gas, electrolytes, base fluid, simple reliable model for predicting developed. Validation calculations against measurements indicates simulation errors 3.47% 6.75%, respectively. • equipment measurement analysis. measured. analytical predict manner effects on have analyzed.