COMPOSITION / INFORMATION ON INGREDIENTS AND APPLICATIONS
Polyanionic cellulose is a blended sized filtration loss control agent with extremely low viscosity, Blended sized is used as rheological regulators to adjust the rheology of drilling fluid quickly under the condition of low dosage. Its used in most water-based drilling fluids including fresh water, sea-water, and brine up to 300°F (149°C). filtration control additive has a very low impact on fluid rheology, is non-toxic and does not require a biocide. filtration control additive exceeds the European specifications for low viscosity polyanionic.
Polyanionic cellulose Advantages
»Effective in fresh water, salt water, and brine-based drilling fluids
»Effective in small concentrations for filtration control
»Is stable at temperatures up to 300°F (149°C)
»Effective in moderate to high pH systems
»Does not require a bactericide
»strong salt resistance and calcium and magnesium resistance
Mud containing Polyanionic cellulose, PAC can make the well wall form thin and strong, low permeability filter cake, and reduce the fluid loss;
High substitution degree, good substitution uniformity, high viscosity, low dosage,
effectively improves the mud use efficiency;
Moisture-resistant, salt-resistant, alkali-resistant, suitable for fresh fluid, seafluid,
saturated salt water-based mud;
Mud cake quality is good and stable, which can effectively stabilize soft soil structure and prevents well wall collapse; entering pores and fractures;
Use Polyanionic cellulose, PAC to make the pressure filter fluid, that can withstand 2% kcl solution and has good solubility, easy to use, can be prepared on the spot, and has fast glue forming, strong sand carrying ability.
Recommended dosage: 2-4% Appearance: Brown flowing powder. PH : 7-8
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