The main functions of HS-D series organic bentonite in drilling fluid are: lubricating drilling tools, stabilizing wellbore walls, and improving carrying capacity, reduce filtration loss, and adapt to complex working conditions.

Organic bentonite can reduce the friction between the drilling tool and the wellbore wall through its viscosity, reducing the resistance during the drilling process, thus, the service life of the drilling tools is extended. Its layered structure forms a dense mud cake on the wellbore wall, effectively inhibiting the collapse of the formation, ensure the safety of drilling operations. By enhancing the fluidity of drilling fluid, it helps to suspend cuttings and prevent them from settling, ensure the mud circulation efficiency. The mud cake formed by organic bentonite particles on the wellbore wall can reduce the water infiltration into the formation, control filtration loss and maintain wellbore stability. In complex environments such as deep wells, ultra-deep wells and offshore drilling, organic bentonite, with its excellent rheological properties and high temperature resistance, can increase drilling speed and reduce the risk of accidents.