Description

1. Introduction
   CMC can reduce water loss, and increase viscosity in drilling fluid, cementing fluid and fracturing fluid. They play the roles of protecting the wall of well, taking drilling trifles, protecting drilling bit, preventing mud loss and increasing drilling rate.It is widely applied in various waterbased drill fluid systems, having a good suspension effect,emulsion stability and fluid loss effect as well.The mud cake formed is smooth and tough.

2. Technical indext(Performance standard: API)