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Hydrolyzed Polyacrylonitrile Potassium for Drilling Fluid
General introduction
Hydrolyzed polyacrylonitrile potassium KHPAN is a product of polymerization and hydrolysis of polyacrylonitrile. It has the characteristics of small routine dosage, strong inhibitive ability, high temperature resistance and salinity resistance.
Property index
Fig. 1 chemical and physical property
Items
Appearance
moisture , %
Sreenings , %
Potassium , %
Chloride Cl - content , %
Index
Free flowing powder or particles
≤10.0
≤5.0
≥12.0
≤3.0
Fig.2 drilling fluid property
Items
Index
Fresh water drilling fluid
Salt water drilling fluid
Base mud
A.V. ,mPa.s
≤8.0
≤10.0
F L ,mL
18.0 ～ 25.0
55.0 ～ 65.0
Adding sample
A.V ,mPa.s
≤8.0
≤10.0
F L rate of reduction ,%
≥45.0
≥50.0
Characteristics
1. Apparently inhibitive ability , keep holes clean and regular, reduce pipe sticking.
2. Improve mud cake quality, effectively reduce filtration loss.
3. Have little influence on rheology behaviour.
4. Strong ability of salinity resistance, can be applied in saturated salt water.
5. Good compatibility with other additives and suitable in both non-dispersed and dispersed drilling fluids.
6. The routine dosage is in the range of 0.2-1.0%, the specific amount is up to condition under well.
Notes
This product should be stored in a cool, ventilated place to avoid the sun and rain.
Package
It is packed in composite paper sacks, with net weight 25kg per sa ck.
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