PHPA Emulsion for Improved Sweep Efficiency in Enhanced Oil Recovery
Product Introduction
Sweep efficiency is controlled by mobility, heterogeneity, gravity, well pattern, injection allocation, fractures, and reservoir connectivity.
Polymer may improve mobility-related sweep, but it cannot by itself correct every conformance or connectivity problem. BLUFLOC EC8050 and EA5620 are the two PHPA emulsion grades listed in the supplied family TDS. Both are shown as very-high-molecular-weight, high-charge, milky-white emulsions with 38-40% solid content. The TDS does not assign them different application roles, so final selection must come from current grade documents and representative testing.
Application Challenges
- Polymer may improve mobility-related sweep, but it cannot by itself correct every conformance or connectivity problem.
- Maintaining target viscosity after hydration, surface handling, and porous-media shear
- Injectivity and retention in the specific reservoir rock
- Viscosity loss in high salinity or divalent-ion water
How the PHPA Emulsion Works
In polymer flooding, hydrated water-soluble polymer increases the viscosity of the injected water and can improve the mobility ratio and sweep of a heterogeneous reservoir. The TDS lists EOR use for the PHPA family, but field suitability depends on injectivity, retention, shear degradation, salinity, divalent ions, temperature, reservoir rock, oil viscosity, produced-fluid separation, and long-term solution stability. No incremental-oil guarantee should be inferred from a generic grade table.
Very-high molecular weight provides long-chain reach, while the stated high charge describes the broad grade class. Neither description alone predicts field performance. Preparation quality, dissolved ions, pH, temperature, solids, shear, aging, and the complete chemical package can change the observed result.
The grades below are screening candidates, not a fixed prescription. Final selection, preparation, dose, addition point, and performance acceptance require representative laboratory and field or plant trials.
Recommended BLUFLOC Grade Screening
| Grade | Molecular Weight | Charge | Screening Position |
|---|---|---|---|
| EC8050 | Very High | High | Screening candidate; no grade-specific application role stated |
| EA5620 | Very High | High | Screening candidate; no grade-specific application role stated |
TDS Specifications
| TDS Item | EC8050 | EA5620 |
|---|---|---|
| Product form | Emulsion | Emulsion |
| Molecular weight | Very High | Very High |
| Charge degree | High | High |
| Appearance | Milky white | Milky white |
| Solid content | 38-40% | 38-40% |
| Bulk density | About 1.0 | About 1.0 |
| Specific gravity at 25°C | 1.01-1.05 | 1.01-1.05 |
| Shelf life | 6 months | 6 months |
| Packaging | 1000 kg IBC drum | 1000 kg IBC drum |
Exact active content, viscosity, specification limits, shelf life, and preparation instructions should be confirmed on the current grade-specific TDS and order specification.
The supplied family TDS contains a general preparation section that refers to a polymer eductor or dry-powder feeder. It does not provide a separate inversion or make-down procedure for EC8050 and EA5620 emulsions. Do not automatically apply powder preparation instructions to the emulsion grades; obtain the current grade-specific emulsion procedure before commissioning.
Application Advantages to Evaluate
- Potential fit for the defined phpa emulsion improved sweep efficiency eor duty after representative testing
- Very-high-molecular-weight PHPA emulsion format for liquid handling and metering
- High-charge classification stated for both EC8050 and EA5620 in the supplied TDS
- PHPA-family compatibility claim covering biopolymers, PAC, and CMC, subject to formulation testing
- Factory-direct documentation, sample screening, order coordination, and export support
Recommended Dosing Workflow
- Screen the reservoir using oil viscosity, temperature, permeability, heterogeneity, water chemistry, and existing waterflood performance.
- Measure polymer hydration and viscosity across concentration, brine, temperature, oxygen exposure, aging, and shear.
- Run filtration, screen-factor, injectivity, retention, adsorption, and core-flood tests with representative rock and fluids.
- Model mobility control, injection pressure, breakthrough, facilities load, and economics using laboratory-derived inputs.
- Use a staged injectivity or field pilot with surveillance and predefined criteria before any wider deployment.
Product Selection and Compatibility
Combine polymer laboratory data with history matching, surveillance, allocation, tracer information, and uncertainty ranges.
Compare candidates on active-polymer mass and total operating outcome. Neat-emulsion price per kilogram can be misleading when active content, make-down efficiency, dose, equipment throughput, solids or fluid quality, drilling performance, logistics, and downstream costs differ.
Operating Indicators to Record
- Injection profile and allocation
- Pressure and injectivity
- Water cut and production response
- Tracer or surveillance response
- Modeled versus observed sweep
If performance drifts: If polymer breaks through early, examine thief zones, fractures, pattern connectivity, retention assumptions, and placement rather than only increasing viscosity.
Packaging, Storage, and Safe Handling
The supplied TDS specifies 1000 kg IBC drum packaging for liquid products. Store the product in its original packaging in a cool, dry place away from sources of heat, flame, and direct sunlight. The stated shelf life for the emulsion products is 6 months. Follow the current SDS for handling, spill control, personal protection, transport classification, and disposal. Polymer spills may create a severe slip hazard and should be contained and cleaned promptly.
Why Choose Bluwat Chemicals
- More than 25 years of water-treatment chemical manufacturing experience since 2000.
- Three production bases supporting factory-direct supply, batch coordination, and export planning.
- Export experience serving customers in more than 80 countries and regions.
- Technical screening support based on the customer's drilling fluid, formation sample, brine, or produced-water conditions.
- TDS, SDS, COA, packing details, and available company-level certification documents can be supplied for order review.
For phpa emulsion improved sweep efficiency eor, Bluwat can review the target duty, prepare a screening plan, compare the TDS-listed emulsion grades, and define laboratory and field acceptance indicators with the customer. Company-level certificates or management-system documents should not be represented as grade-specific application approvals unless the applicable certificate explicitly says so.
Quality Control and Technical Support
- Confirm the selected grade, current specification, order limits, and documentation before production.
- Screen EC8050 and EA5620 with representative fluids because the supplied family TDS does not assign different application roles to the two grades.
- Record water chemistry, temperature, shear history, mixing sequence, and baseline fluid properties during laboratory work.
- Scale up only after agreed performance indicators and operating limits are demonstrated under representative conditions.