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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.