FA367 Zwitterionic Polymer Encapsulating Agent is a water-soluble polymer which is copolymerized with anionic, cationic and non-ionic vinyl monomers.
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FA367 Zwitterionic Polymer Encapsulating Agent is a water-soluble polymer which is copolymerized with anionic, cationic and non-ionic vinyl monomers. FA367 inhibits cutting from dispersing and swelling improves the drilling fluids viscosity. FA367 inhibits the contamination caused by cutting and cutting powder, reduce the content of harmless submicron particles so as to improve ROP and protect reservoir. The typical concentrations of the product range from 0.7 - 3.5 ppb.
Table 1 Physical and Chemical Specifications
Items | Specifications |
Appearance | White free-flowing powder |
Moisture, % | ≤9.0 |
Residue (0.90mm), % | ≤15.0 |
AV (1% aqueous solution), mPa·s | ≥30.0 |
pH | 7.5-9.0 |
Table 2 Drilling Fluid Specifications
Items | AV, mPa·s | PV, mPa·s | FL, mL | |
4% Bentonite freshwater slurry | Base mud | 8.0-10.0 | 3.0-5.0 | 22.0- 26.0 |
Base mud+2g/l FA367 | ≥25.0 | ≥8.0 | ≤15.0 | |
15% Bentonite combined salt slurry | Base mud | 4.0-6.0 | 2.0-4.0 | 52.0- 58.0 |
Base mud+7g/l FA367 | ≥15.0 | ≥10.0 | ≤10.0 |
Advantages
Provide reasonable cutting-coating property, inhibit the mud-making ratio of the formation.
Strong shale inhibiting property.
Improve the rheology effectively.
Excellent thermal stability (up to 150℃).
Resist salt and calcium contamination
Package
They shall be packaged in 25kg multi-wall paper sacks. They shall be stored in a shady, dry, and ventilated place.
Safety
They shall be avoided contact with eyes, skins and clothes, otherwise flush it with water. Handling methods and dangerous data shall be referred to MSDS.
