Polyanionic cellulose (PAC) is a common additive to water-based drilling muds. Often used in regions with hard-rock applications, such as the Rocky Mountain range in the U.S. and Canada, PACs were primarily used because of their ability to control fluid loss, improve carrying capacity and offer inhibition properties. However, PACs have drawbacks, particularly cost, heat […]
Chemstar has been in the starch production business for nearly 50 years. During that time we’ve opened three production facilities, each with unique production capabilities, product line focuses, geographic advantages and experienced starch engineers who put our science to work for our customers. Each facility is also undergoing exciting changes meant to increase capacity, enhance […]