Encapsulators & Inhibitors
Emulsion Polymer Encapsulator DS301
DS301
DS301 is an anionic emulsion polymer encapsulator produced by inverse emulsion polymerization of acrylamide, potassium acrylate (KAA) and a cationic monomer. It adsorbs firmly onto cuttings to form a protective film that inhibits shale hydration and dispersion, with field-proven hole enlargement rates as low as 6.5%-8.8% in sloughing formations.
APPLICATIONS
Application scenarios
- 01Cuttings encapsulation and shale inhibition in water-based muds
- 02Saltwater and saturated saltwater systems, including Ca/Mg-contaminated brines
- 03High-temperature wells up to 120 °C
PERFORMANCE
Performance indicators
| Item | Specification |
|---|---|
| Appearance | White or Pale Yellow Emulsion |
| Average Molecular Weight ≥ | 6.0×106 |
| Solids Content % ≥ | 28.0 |
| pH | 5.0～8.0 |
| Item | Base Mud Specification | Test Result |
|---|---|---|
| Apparent Viscosity in Freshwater Mud mPa·s | 7～10 | ≥15 |
| Apparent Viscosity in Compound Brine Mud mPa·s | 4～6 | ≥15 |
USAGE
Usage
Dilute with water before use, then add the solution slowly into the circulating system with continuous agitation to ensure uniform mixing and avoid localized overdosing.
PACKAGING
Packaging & delivery
200 L plastic drums standard; IBC or customized export packaging available on request.
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Emulsion Polymer Encapsulator DS301 · DS301
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