English
Main ingredients
The zwitterionic polymer strong coating agent (FA-367) for drilling fluids is a water-soluble polymer formed by copolymerization of monomers containing multiple organic cation genes, anion genes, and non-ion genes.
Nature and Use
The product is a white or slightly yellow freely flowing powder and particles, with good filtration loss reduction effect.
Specification
|
Project |
Technical indicators |
|
|
Appearance |
White to light gray particles or powder |
|
|
Moisture，% |
≤9.00 |
|
|
Screen residue（Sieve hole 0.9mm sieve residue），% |
≤10.0 |
|
|
PH value (1% aqueous solution) |
7.5～9.0 |
|
|
1% apparent viscosity of aqueous solution，mpa.s |
≥30.0 |
|
|
Intrinsic viscosity，100mL/g |
≤6.0 |
|
|
Freshwater base slurry |
Apparent viscosity，mPa.s |
≥25.0 |
|
Plastic viscosity，mPa.s |
≥8.0 |
|
|
Reduction rate of filtration loss，% |
≥55.0 |
|
|
Composite saltwater |
Apparent viscosity，mPa.s |
≥15.0 |
|
Plastic viscosity，mPa.s |
≥10.0 |
|
|
Reduction rate of filtration loss，% |
≥85.0 |
|
|
Inhibiting the dispersibility of bentonite |
Apparent viscosity increase rate，% |
≤200.0 |
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 5% in saturated saline water, and the effect of compounding with other products is better.
