English
Main ingredients
Hydrolyzed polyacrylonitrile ammonium salt for drilling fluid is obtained by hydrolyzing polyacrylonitrile with ammonium hydroxide, containing groups such as - COOH, - COONH4, - CONH2, - CN, etc
Nature and Use
The product is a light yellow powder, soluble in water, and the aqueous solution is neutral.
Specification
|
Project |
Technical indicators |
|
|
Appearance |
Free flowing powder and particles |
|
|
Drying loss，% |
≤10.00 |
|
|
Ignition residue，% |
≤2.0 |
|
|
Screen residue，% |
≤5.0 |
|
|
Ammonia content，% |
7.0-9.0 |
|
|
Freshwater base slurry |
Base slurry filtration loss，mL |
25.0±2.0 |
|
Apparent viscosity of base slurry，mPa.s |
6.0-8.0 |
|
|
After NH4-HPAN treatment, the filtration loss is reduced，mL |
≤14.0 |
|
|
After NH4-HPAN treatment, apparent viscosity，mPa.s |
≤8.0 |
|
|
Saltwater based slurry |
Base slurry filtration loss，mL |
55.0±3.0 |
|
Apparent viscosity of base slurry，mPa.s |
5.0-7.0 |
|
|
After NH4-HPAN treatment, the filtration loss is reduced，mL |
≤27.0 |
|
|
After NH4-HPAN treatment, apparent viscosity，mPa.s |
≤8.0 |
|
Product features
Usage
It can be prepared into an aqueous solution for use or directly added to the drilling fluid circulation system. When adding directly, attention should be paid to the feeding speed, and a uniform slow addition or intermittent addition method should be used.
Recommended dosage: (volume ratio)
It is recommended to add 0.5% to 1.5% in saturated saline water, and the effect of compounding with other products is better.
