Question: Should I use PAC or CMC for oil drilling?

Answer: Whether to use PAC or CMC for oil drilling depends on the drilling environment to determine which chemical additive to use.

PAC (polymer control agent) or CMC (sodium carboxymethyl cellulose) is used to increase the viscosity and suspension of drilling fluids.

PAC is a polymer control agent with good high temperature stability and high viscosity, suitable for high temperature and high pressure environments. It increases the viscosity of drilling fluids and reduces loss and mud separation.

CMC is a kind of sodium carboxymethyl cellulose, which is mainly used in drilling under low temperature conditions. It has good water solubility and dispersion, can improve the suspension and stability of drilling fluid, and performs well in low temperature environments.