In drilling and oil drilling engineering, good mud must be configured to ensure the normal operation of the drilling. Good mud must have appropriate specific gravity, viscosity, thixotropy, water loss and other values. These values have their own requirements depending on the region, well depth, mud type and other conditions. Using CMC in mud can adjust these physical parameters, such as reducing loss Water volume, adjust viscosity, increase thixotropy, etc. When in use, dissolve CMC in water to make a solution and add it to the mud. CMC can also be added to the mud together with other chemical agents.

Sodium carboxymethyl cellulose CMC for petroleum drilling has: less dosage, high pulping rate; good salt resistance, strong antibacterial property, convenient use; good filtration loss reduction and viscosity increasing effect; rheological control and strong suspension ability; The product is green and environmentally friendly, non-toxic, harmless and odorless; the product has good fluidity and convenient construction.

1. High substitution degree and good substitution uniformity;

2. High transparency, controllable viscosity and reduced water loss;

3. Suitable for fresh water, sea water, saturated brine water-based mud;

4. Stabilize the soft soil structure and prevent the well wall from collapsing;

5. It can increase the pulping volume and reduce the filtration loss;

6. Excellent performance in drilling.

Add directly or make glue into the mud, add 0.1-0.3% to fresh water slurry, add 0.5-0.8% to salt water slurry