1. Appearance: White polymer powder
2. Solubility in acid: Rapid dissolution in concentrated HCl, no insoluble matter
3. Crosslinking performance: Controllable crosslinking with zirconium salt crosslinker; high gel strength
4. Temperature resistance index: Suitable for deep well temperatures below 180°C
5. Temperature resistance performance: Maximum 160°C, gel rheological viscosity ≥40 mPa·s
6. Retardation performance: Acid-rock reaction rate reduction ≥60%
7. Gel breaking performance: Complete gel break, broken fluid viscosity ≤5 mPa·s