In oil drilling industry, low viscosity HEC is mainly used as  water loss controller, while high viscosity HEC used as viscosifier in well-completing or finishing fluid.  


  • Impart good mobility and stability to slurry

  • Increase the sand carrying capability of the slurry

  • Prevent water in the slurry from entering into the oil reservoir

  • Enhance the stabilizing capability of the wall reservoir


About Case