Dynarise^® - HEC, full name is Hydroxyethyl cellulose ,it is a non-ionic soluble cellulose ether, which can coexist with many other water-soluble polymers, surfactants, salts, etc. HEC has the properties of thickening, suspension, adhesion, emulsification, film formation stability, dispersion, water retention, anti-microbial, and colloid protection. HEC can be used as a thickener and cementing agent for oil well workover fluids, which helps provide A clear low-fixed-content solution, which greatly reduces damage to the well structure. In cement reinforcement operations, HEC reduces hydraulic friction of the mud and minimizes water loss from lost rock formations.