High Molecular Weight Anionic Polyacrylamide for Enhanced Oil Recovery EOR Polymer Flooding and Mobility Control
Product Overview
BLUFLOC High Molecular Weight Anionic Polyacrylamide is an oilfield polymer designed for enhanced oil recovery applications, especially polymer flooding and mobility control. With high molecular weight and anionic charge, it can dissolve in water to form a viscous polymer solution used to improve the flow behavior of injection water.
In many mature oilfields, water flooding is widely used to push remaining oil toward production wells. However, plain water usually has low viscosity and may move too quickly through high permeability channels. This can cause early water breakthrough, poor sweep efficiency and limited oil displacement performance.
High molecular weight anionic polyacrylamide helps increase the viscosity of injection water. By improving the mobility ratio between injected water and crude oil, polymer flooding can help the injected fluid sweep a larger reservoir area and support improved oil recovery performance.
BLUFLOC anionic PAM is suitable for oilfield customers, EOR service companies, polymer flooding projects and chemical distributors looking for a high molecular weight PAM for mobility control and reservoir sweep efficiency improvement.
Key Product Features
High molecular weight anionic polyacrylamide for EOR
Suitable for polymer flooding and mobility control
Helps increase injection water viscosity
Supports improved sweep efficiency in suitable reservoirs
Helps reduce water channeling tendency
Supports better displacement of remaining oil
Minimum 89 percent solid content for stable product quality
Anionic molecular weight range from 5 to 25 million
20 to 100 mesh powder form for industrial handling
Recommended solution concentration from 0.1 to 0.5 percent
Factory direct supply with technical support
Customized molecular weight and anionic degree available
Technical Specifications
| Item | Specification |
|---|---|
| Product Name | High Molecular Weight Anionic Polyacrylamide |
| Brand | BLUFLOC |
| Product Type | Water Soluble Polymer Powder |
| Recommended Application | Enhanced Oil Recovery EOR and Polymer Flooding |
| Ionic Type | Anionic |
| Appearance | Off White Granular Powder |
| Particle Size | 20 to 100 Mesh |
| Molecular Weight Range | 5 to 25 Million for Anionic Type |
| Anionic Degree Range | 5 to 100 Percent |
| Solid Content | Minimum 89 Percent |
| Bulk Density | About 0.8 |
| Residual Monomer | Max 0.05 Percent |
| Recommended Working Concentration | 0.1 to 0.5 Percent |
| pH of 1 Percent Solution | Around 6 to 8 for Anionic Type |
| Storage Temperature | 0 to 35 Degree C |
| Shelf Life | 2 Years |
| Standard Package | 25 kg Bag |
| Big Package | 750 kg Big Bag |
| Available Documents | TDS, MSDS and COA |
Main Applications in Enhanced Oil Recovery
EOR Polymer Flooding
BLUFLOC high molecular weight anionic polyacrylamide can be used in polymer flooding projects to increase the viscosity of injection water. This helps improve the displacement performance of the injected fluid and supports better sweep of the reservoir.
Mobility Control
Mobility control is one of the key purposes of EOR polymer flooding. By increasing water viscosity, anionic PAM helps reduce the mobility difference between water and oil, allowing the injection fluid to move through the reservoir more effectively.
Injection Water Viscosity Improvement
High molecular weight PAM forms a viscous solution after proper dissolution. This polymer solution can be injected into suitable reservoirs to improve water viscosity and support enhanced oil recovery operation.
Sweep Efficiency Support
When plain water flows too quickly through high permeability zones, it may bypass oil in lower permeability areas. Polymer flooding can help improve sweep efficiency by slowing down the injected water and allowing it to contact more oil bearing zones.
Water Channeling Reduction
In mature oilfields, water channeling may reduce oil production efficiency. Anionic polyacrylamide can help reduce the tendency of fast water movement through preferred channels when used in suitable reservoir conditions.
Mature Oilfield Recovery Support
BLUFLOC anionic PAM is suitable for selected mature oilfields where water flooding performance needs improvement and polymer flooding is considered as an EOR method.
Oilfield Injection System Support
High molecular weight PAM can be used as part of oilfield injection chemical programs. Final product selection should consider reservoir salinity, temperature, hardness, permeability and injection system design.
Why High Molecular Weight Matters for EOR
High molecular weight is important in EOR polymer flooding because it strongly affects viscosity building performance. A higher molecular weight polymer can create stronger viscosity response at relatively low concentration, which is important for mobility control.
For EOR applications, high molecular weight anionic PAM helps support:
Higher injection water viscosity
Better mobility ratio control
Improved sweep efficiency
Reduced water channeling tendency
Better displacement of remaining oil
More efficient polymer flooding performance
The suitable molecular weight should be selected according to reservoir conditions, including salinity, temperature, permeability, hardness and shear environment.
How Anionic PAM Works in Polymer Flooding
After the powder is fully dissolved in water, high molecular weight anionic polyacrylamide forms a viscous polymer solution. This solution is injected into the reservoir through injection wells.
Compared with plain water, the polymer solution has higher viscosity. This helps reduce the speed difference between injected water and crude oil, improving mobility control and helping the injection fluid sweep more of the reservoir.
In suitable conditions, polymer flooding can help push more remaining oil toward production wells and improve oil recovery efficiency.
Typical Problems This Product Can Help Improve
Low efficiency of conventional water flooding
Early water breakthrough
Poor sweep efficiency
High water cut in mature oilfields
Water channeling through high permeability zones
Low injection water viscosity
Poor mobility ratio between water and oil
Need for EOR polymer flooding chemical
Need for high molecular weight anionic PAM for oil recovery
Product Selection Considerations for EOR
EOR polymer selection should be based on actual reservoir and injection water conditions. Important factors include:
Reservoir temperature
Injection water salinity
Calcium and magnesium hardness
Reservoir permeability
Crude oil viscosity
Target polymer solution viscosity
Shear conditions during mixing and injection
Compatibility with other oilfield chemicals
Required polymer concentration
For EOR polymer flooding, laboratory evaluation is strongly recommended before field application. Tests may include viscosity testing, salinity tolerance, thermal stability, shear stability, filtration performance and core flooding evaluation.
Recommended Solution Preparation
Prepare the polymer solution at 0.1 to 0.5 percent concentration or according to project design.
Add the powder slowly and evenly into clean water.
Keep continuous agitation during powder addition.
Recommended agitation speed is 200 to 400 rpm.
Normal dissolving time is about 1 hour.
Avoid adding powder too quickly because lumping may occur.
Avoid excessive high speed agitation because it may damage polymer molecular chains.
Use the fully dissolved polymer solution before injection or further dilution.
For EOR applications, make-up water quality should be evaluated before solution preparation.
General Dosing Guidance
The actual polymer concentration depends on target injection viscosity, reservoir conditions, water salinity, temperature, permeability and project design.
For EOR polymer flooding, the final dosage should be determined by laboratory testing and field pilot evaluation.
Bluwat can provide product selection support and recommend suitable anionic PAM grades according to customer reservoir information, injection water quality and target viscosity requirements.
Difference Between EOR PAM and Drilling Mud PAM
EOR PAM and drilling mud PAM are both oilfield polyacrylamide products, but their selection focus is different.
EOR PAM focuses on injection water viscosity, mobility control, salinity tolerance, shear stability and reservoir compatibility.
Drilling mud PAM focuses on drilling fluid viscosity, shale stabilization, fluid loss control, lubrication, cuttings suspension and mud system stability.
Because EOR conditions are more sensitive to reservoir temperature, salinity and hardness, product selection should be based on laboratory evaluation and reservoir data.
Product Advantages for Oilfield Buyers
High molecular weight anionic PAM for polymer flooding
Suitable for enhanced oil recovery and mobility control
Helps increase water viscosity for EOR injection
Supports sweep efficiency improvement
Can help reduce water channeling tendency
Minimum 89 percent solid content
20 to 100 mesh powder form
Recommended 0.1 to 0.5 percent solution concentration
Low dosage and strong viscosity response
Factory direct supply from China
TDS, MSDS and COA available
Customized molecular weight and anionic degree available
Technical support for product selection
Packaging and Storage
BLUFLOC High Molecular Weight Anionic Polyacrylamide is packed in 25 kg kraft paper bags with inner PE liner or 750 kg jumbo bags.
Store the product in a cool, dry and ventilated warehouse.
Avoid direct sunlight and moisture.
Keep the package sealed after opening.
Recommended storage temperature is 0 to 35 Degree C.
Shelf life is 2 years under proper storage conditions.
The product is water soluble, non flammable and non explosive under normal storage conditions.
Bluwat Factory Supply Capability
Bluwat Chemicals is a professional manufacturer and exporter of polyacrylamide and water treatment chemicals with more than 25 years of manufacturing experience.
Bluwat supplies anionic polyacrylamide, cationic polyacrylamide, nonionic polyacrylamide and emulsion polyacrylamide for enhanced oil recovery, oilfield drilling, oilfield wastewater treatment, mining, papermaking, municipal sewage treatment, industrial wastewater clarification and sludge dewatering.
For oilfield customers, Bluwat can provide technical support, sample support, TDS, MSDS, COA, product selection recommendations and customized PAM grades according to EOR project requirements.
Available Documents
TDS available
MSDS available
COA available
Sample support available
OEM packaging available
Customized product recommendation available
FAQ
What is high molecular weight anionic polyacrylamide used for in EOR?
It is used for enhanced oil recovery polymer flooding, injection water viscosity improvement, mobility control, sweep efficiency support and water channeling reduction in suitable oilfield reservoirs.
How does PAM help enhanced oil recovery?
PAM increases the viscosity of injection water. This helps improve mobility control and allows the injected fluid to sweep more reservoir area, supporting improved oil displacement.
What molecular weight range is available?
BLUFLOC anionic polyacrylamide has a molecular weight range from 5 to 25 million.
Is this product suitable for polymer flooding?
Yes. High molecular weight anionic polyacrylamide can be used for selected polymer flooding applications. Final selection should be based on reservoir salinity, temperature, hardness and testing results.
What is mobility control in EOR?
Mobility control means adjusting the flow behavior of the injected fluid so that it does not move too quickly through high permeability zones. Polymer helps increase water viscosity and improve the mobility ratio between water and oil.
What is the recommended solution concentration?
The recommended solution concentration is generally 0.1 to 0.5 percent, but the final concentration should be determined by target viscosity and project design.
How long does PAM need to dissolve?
Normally it takes about 1 hour under proper agitation conditions.
Can this product be used in high salinity reservoirs?
Suitability depends on salinity, hardness, temperature and required viscosity. Testing is recommended before field use.
Can Bluwat customize PAM for EOR projects?
Yes. Bluwat can customize molecular weight, anionic degree and packaging according to EOR project requirements.