Chemical Mineral

Drilling Fluid Additives Technical low viscosity carboxymethyl cellulose

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PAC HV is high viscosity polyanionic cellulose and low molecular weight, low viscosity type polymer designed specifically for use in solids-laden, water-based drilling fluids, which can effectively reduces the filtration rate of many water-based drilling fluids, especially solids-laden fluids, without causing significant increases in viscosity or gel strengths.?

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Specifications:

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Index | CMC-LVT |
Appearance | Free flowing off-white powder |
Moisture Content % | 10.0 Max |
PH of Solution | 6.0-8.5 |
Particle Size | 95%min pass through 40mesh |
10.5g in 350ml Deionized water (600 rpm reading value) | ≤90 |
Fluid loss (ml/30min) | ≤10 |
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Drilling fluid?Cellulose gum& acute;s?Function:

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1 . CMC-containing mud makes a well wall a thin, hard and low-permeability filter cake to reduce water loss.
2 . Adding CMC into slurry will endow the drill with low initial gel strength, making the slurry give off the gas inside and abandoning the waste into the slurry pit.
3 . Slurry with CMC is seldom affected by the bacterium and requires no high PH value or corrosion resistant.
4 . The wall-cleaner treatment chemicals with CMC can resist the contamination of all kinds soluble salts.
5 . Slurry with CMC has excellent stability and will still reduce the filtration loss under 150℃ or above.
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