Encapsulators & Inhibitors
Encapsulator FA-367
FA-367
FA-367 is a polymeric encapsulator that coats cuttings and clay surfaces with a tough protective film, stabilizing the wellbore and reducing hole enlargement. It improves mud rheology and filter cake quality, and tolerates salts, calcium/magnesium ions and temperatures above 180 °C.
APPLICATIONS
Application scenarios
- 01Cuttings encapsulation and wellbore stabilization in shale formations
- 02Salt-, calcium- and magnesium-contaminated drilling fluids
- 03High-temperature wells above 180 °C
PERFORMANCE
Performance indicators
| Item | Specification |
|---|---|
| Moisture % | ≤9.0 |
| Fineness (Residue on 0.9 mm Sieve) ,% | ≤15.0 |
| Apparent Viscosity (1% Aqueous Solution) ,mPa·s | ≥30.0 |
| pH | 7.5～9.0 |
| Item | Apparent Viscosity mPa·s | Plastic Viscosity mPa·s | Fluid Loss mL | |
|---|---|---|---|---|
| 4% Bentonite Freshwater Mud | Freshwater Base Mud | 8～10 | 3～5 | 22～26 |
| 4% Bentonite Freshwater Mud | Freshwater Base Mud + 2.0 g/L Sample | ≥25 | ≥8 | ≤15 |
| 15% Bentonite Compound Brine Mud | Base Mud | 4～6 | 2～4 | 52～58 |
| 15% Bentonite Compound Brine Mud | Base Mud + 7.0 g/L Sample | ≥15 | ≥10 | ≤10 |
| Item | Apparent Viscosity Increase Rate after Hot Rolling at 160 °C % |
|---|---|
| Base Mud + 20 g Bentonite | 450～700 |
| Base Mud + Sample + 20 g Bentonite | ≤250.0 |
USAGE
Usage
Add through the mixing hopper with good agitation; a typical starting dosage is 0.1%-0.5% by weight. Adjust by pilot testing for the specific mud system.
PACKAGING
Packaging & delivery
25 kg/bag standard; export packaging available on request.
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Encapsulator FA-367 · FA-367
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