CMC can be used for oil and natural gas drilling, well digging and other projects

① The mud containing CMC can make the well wall form a thin and firm filter cake with low permeability, which reduces the water loss.

② After CMC is added to the mud, the drilling rig can obtain a low initial shear force, so that the mud can easily release the gas wrapped in it, and at the same time, the debris is quickly discarded in the mud pit.

③Drilling mud, like other suspension dispersions, has a certain period of existence, and the addition of CMC can make it stable and prolong the period of existence.

④ The mud containing CMC is rarely affected by mold, so it is not necessary to maintain a high pH value and use preservatives.

⑤ Contain CMC as drilling mud washing fluid treatment agent, which can resist the pollution of various soluble salts.

⑥ The mud containing CMC has good stability and can reduce water loss even if the temperature is above 150℃.

CMC with high viscosity and high degree of substitution is suitable for mud with low density, and CMC with low viscosity and high degree of substitution is suitable for mud with high density. The selection of CMC should be determined according to different conditions such as mud type, region and well depth.