cmc(tvt)

CMC used as a drilling mud in the water-soluble colloid, composed of drilling fluid, with high precipitation in water loss control. * Temperature performance, superior performance and salt in a certain salt concentrations, still has good fluid loss and maintain a certain degree of flow variability. * can be a very good control of slurry theology, as a cementing fluid, fluid can be organized into the gaps and cracks in rocks, fracturing fluid can be used to control the liquid into the wells.