
Product name: MILPARK CMC LV
Product code: Na-CMC
Role category: Viscosity Increasing and Filtration Loss Reducing Materials
Product Classification:
They are classified into three types according to their degree of polymerization and the size of their aqueous solutions.
Type l: high viscosity (HV), Type ll: medium viscosity (MV), Type lll: low viscosity (LV).
Key features:
1: Increase the viscosity of the mud.
2: Reduce the filtration loss of the mud.
key feature:
1: poor viscosity stability, just add the mud viscosity of 50 seconds, after a few weeks of circulation, may be down 40 seconds, 30 seconds.
2: Adsorption of rock chips, so that the rock chips continue to make slurry, resulting in increased specific gravity of the mud.
3: Does not resist the temperature, the mud temperature increases, the viscosity decreases rapidly.
4: does not resist the salt, with brine mud, should be added to the CMC first, and then add salt.
Additions:
The dosage varies from 0.1% to 0.5% depending on the formation well conditions and mud properties.
Usage:
1: The best use of the first down into a 2% aqueous solution, and then added to the mud.
2: And then add the mixer should be added to the NA-CMC, and then add other materials.
3: Can also be added directly to the mud, but the viscosity is much slower, and the effect is much worse!
Production process:
Short cotton lint plus caustic soda cooking to get refined cotton, refined cotton by caustic soda treatment, chemical reaction with sodium acetate at a certain temperature, and then washed with alcohol, aging, drying and crushing that is the production of NA-CMC.