MUD CONTAMINATION WITH CO2 CAUSES & TREATMENT
Introduction To Mud Contamination By CO2 Carbon dioxide (CO2) is a common constituent of natural gases and is present in most types of formation fluids. Carbon dioxide dissolves in water, forming carbonic acid that lowers the pH. This lowers the alkalinity of water based muds changing hydroxyl ions (OH–) to bicarbonates (HCO3–) and carbonates (CO3-2) …