Oilfield Polymer HPAM for Sandstone Reservoir EOR Applications
High-performance HPAM polymer designed for polymer flooding and mobility control in sandstone formations.
This oilfield-grade HPAM polymer is engineered specifically for sandstone reservoir environments where permeability contrasts, heterogeneity, and water channeling reduce the effectiveness of conventional waterflooding. HPAM improves sweep efficiency by increasing water viscosity, stabilizing the displacement front, and pushing oil from lower-permeability layers.
Product Overview
HPAM (Partially Hydrolyzed Polyacrylamide) is widely recognized as the most effective polymer for chemical EOR in sandstone reservoirs. Its long-chain molecular structure provides a strong thickening effect in injection water, enabling superior mobility control and enhanced displacement efficiency.
Why Sandstone Reservoirs Benefit from HPAM
- Sandstone formations typically support excellent polymer propagation.
- HPAM molecules move uniformly through pore networks without excessive retention.
- Improves vertical and areal sweep efficiency in layered or heterogeneous sandstone.
- Reduces viscous fingering and early water breakthrough.
- Cost-effective chemical upgrade for aging sandstone reservoirs.
EOR Applications in Sandstone
- Primary polymer flooding in medium- to high-permeability sandstone fields.
- Mobility control in brownfields with high water cut.
- Conformance improvement in stratified or channelized deposits.
- Low-salinity and moderately saline polymer flooding designs.
- Polymer-assisted waterflood redevelopment programs.
Performance Features
Engineered for the geological and chemical conditions unique to sandstone formations:
- High molecular weight for strong viscosity at low dosages.
- Predictable propagation in sandstone with minimal adsorption.
- Stable hydration and rheology in typical injection waters.
- Enhanced mobility ratio for improved sweep efficiency.
- Low degradation under controlled shear handling.
Technical Specifications (Typical)
| Property | Typical Value |
|---|---|
| Appearance | Off-white granular HPAM powder |
| Molecular Weight | 5–22 million (varies by grade) |
| Ionic Type | Anionic |
| Solid Content | ≥ 89% |
| Residual Monomer | ≤ 0.05% |
| Particle Size | 20–100 mesh |
| Recommended Concentration | 0.1% – 0.5% |
| pH (1% solution) | 6 – 8 |
| Packaging | 25 kg bags / 750 kg jumbo bags |
- Evaluate sandstone permeability and heterogeneity before polymer selection.
- Perform core floods to confirm polymer retention and propagation behavior.
- Test salinity and hardness effects on HPAM viscosity.
- Design injection concentration and slug size based on reservoir modeling.
- Monitor pressure response, injectivity, and incremental oil trends.
Sandstone EOR Highlights
- Excellent propagation in sandstone
- Reduced water channeling
- Improved conformance
- Enhanced sweep efficiency
- Low CAPEX upgrade
Quality & Processing
- Strict MW distribution control
- Consistent particle size uniformity
- Optimized solubility
- High purity formulation
Storage Guidance
- Store in dry, cool, ventilated warehouse
- Protect bags from moisture
- Seal unused packages immediately
- Use PPE during powder handling