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Product Description
Name: Polyanionic Cellulose(PAC-R/PAC-L)
CAS No.: 9004-32-4
Molecular Formula:[C6H7O2(OH)2CH2COONa]n
Appearance: Free flowing off-white powder
Properties
1.PAC (Polyanionic Cellulose) is a kind of nonionic cellulose ether featured the properties of high purity, high DS, particularly high viscosity or low viscosity. These products are demi-natural polymer additive, thickening agent, filtrate reducer.
2.PAC is an indispensable product for drilling mud making. PAC is high purity product; the water solution of this white powder is transparent and viscid. As water-soluble polymer, it dissolves immediately in cold/hot water and can be used as a thickening agent, rheology controller, bond, stabilizer, colloid protector, suspending agent, and filtrate reducer.
3.PAC is a good drilling mud additive and also an important material for confecting well liquid, a high mud volume product that featured high acid-resistance and salt-resistance ability. It is a good filtrate reducer with the capacity of increasing viscosity and anti-high temperature (150°C) in the freshwater, seawater, or even saturated brine well-completion liquid. It is suitable for confecting the completion fluid with these 3 kinds of water above.
Specification:
Properties | Specifications | ||
PAC-LV | PAC-HV | ||
Degree of substitutionD.S. ≥ | 0.9 | 0.9 | |
pH value | 68 | 68 | |
Moisture, % ≤ | 10 | 10 | |
Amount above screen40 mesh, % ≤ | 5 | 5 | |
Yield in distilled water, m3/t ≥ | 400 | / | |
Yield in 40g/l salt water, m3/t ≥ | 230 | / | |
Yield in saturated salt water, m3/t ≥ | 280 | / | |
Water loss | At 5.7g/L of PAC concentration,mL ≤ | / | 20.0 |
At 8.6g/L of PAC concentration,mL ≤ | / | 15.0 | |
At 11.4g/L of PAC concentration,mL ≤ | / | 10.0 | |
YP values | At 5.7g/L of PAC concentration,Pa ≥ | / | 2.4 |
At 8.6g/L of PAC concentration,Pa ≥ | / | 9.6 | |
At 11.4g/L of PAC concentration,Pa ≥ | / | 19.2 | |
polyanionic cellulose polymer for oil field drilling