Polyacrylamide PAM for Enhanced Oil Recovery EOR and Oilfield Water Treatment
Product Introduction
Anionic PAM Polymer, also known as Anionic Polyacrylamide, is widely used in drilling mud treatment to improve mud viscosity, suspend drilling solids, condition the drilling fluid system, and support borehole stability.
In oilfield drilling, drilling mud must carry drill cuttings from the borehole to the surface, maintain stable viscosity, reduce fluid loss, protect shale formations, and reduce friction during circulation. If drilling solids are not properly suspended, they may settle in the borehole and cause poor hole cleaning, stuck pipe, increased torque, and unstable drilling performance.
Bluwat Anionic PAM and PHPA products are designed to support drilling mud performance in oil and gas field applications. According to Bluwat’s PHPA TDS, BLUFLOC PHPA series are anionic water-soluble polymers with different molecular weights. They are mainly used as fluid loss reducers, viscosifiers, and protective colloids for shale and cuttings in fresh water, calcium brine, sodium brine, and KCL mud systems. They are applicable for shale stabilization, viscosity improvement, friction reduction, fluid loss control, and lubrication.
Why Solids Suspension Is Important in Drilling Mud
Solids suspension is one of the key functions of drilling mud. During drilling, the drill bit continuously generates cuttings. These cuttings must be carried upward by the circulating mud and removed through surface solids control equipment.
If the mud does not have enough suspension capacity, cuttings and fine solids may settle in the borehole. This can lead to several problems, such as poor hole cleaning, stuck pipe, high torque and drag, unstable mud density, and reduced drilling efficiency.
Anionic PAM Polymer helps improve solids suspension by increasing mud viscosity, improving the carrying capacity of the fluid, and supporting a more stable mud structure.
Key Functions of Anionic PAM in Drilling Mud Treatment
1. Solids Suspension
Anionic PAM helps suspend drilling solids, clay particles, and cuttings in the mud system. This supports better cuttings transport and reduces the risk of solids settling in the borehole.
2. Cuttings Carrying Support
A stable drilling mud system needs enough viscosity and carrying capacity to transport cuttings to the surface. PAM works as a viscosifier and helps improve the movement of cuttings during circulation.
3. Drilling Mud Conditioning
Anionic PAM can improve the overall condition of water-based drilling mud. It supports mud stability, reduces dispersion of fine particles, and helps maintain suitable rheological performance.
4. Viscosity Improvement
Anionic PAM and PHPA grades can increase drilling fluid viscosity. This is important for hole cleaning, solids carrying, and stable drilling fluid circulation.
5. Fluid Loss Control
PAM can support fluid loss reduction by improving mud stability and helping maintain lower mud cake permeability. This reduces filtrate invasion into the formation and helps protect the borehole.
6. Shale Stabilization
PHPA-type anionic polymers can act as protective colloids for shale and cuttings. They help prevent shale swelling, erosion, and dispersion in water-based drilling mud systems.
7. Lubrication and Friction Reduction
Anionic PAM can also support lubrication and friction reduction in drilling mud, helping reduce resistance between drilling tools, clay particles, and borehole surfaces.
Typical Product Properties
| Specifications | PHPA Powder Products | PHPA Emulsion Products |
|---|---|---|
| Product Type | Anionic PAM / PHPA Powder | Anionic PAM / PHPA Emulsion |
| Product Models | HA6518, HA8520, HAA6520, HAA7525 | EA5617, EA5620 |
| Molecular Weight | Very High to Ultra High | Very High |
| Degree of Hydrolysis | Medium to High | Medium to High |
| Appearance | White Powder | Milky White |
| Solid Content | 89% min | 38–40% |
| Bulk Density | About 0.8 | About 1.0 |
| Specific Gravity at 25°C | 1.01–1.1 | 1.01–1.05 |
| Recommended Solution Concentration | 0.1–0.3% solid | 0.1–0.3% solid |
| Effective pH Range | 5–14 | 5–14 |
| Shelf Life | 2 years | 6 months |
| Package | 25 kg kraft bags with inner PE bags | 1000 kg IBC drum |
Product Model Reference
| Product Model | Product Form | Molecular Weight | Degree of Hydrolysis | Suggested Application Focus |
|---|---|---|---|---|
| HA6518 | Powder | Very High | Medium | General drilling mud treatment, solids suspension, viscosity support |
| HA8520 | Powder | Very High | High | Fluid loss control, shale inhibition, brine mud systems |
| HAA6520 | Powder | Ultra High | Medium | High solids suspension, cuttings carrying, borehole stability |
| HAA7525 | Powder | Ultra High | High | High-performance mud treatment, strong fluid loss control, shale stabilization |
| EA5617 | Emulsion | Very High | Medium | Fast dispersion, mud conditioning, solids suspension support |
| EA5620 | Emulsion | Very High | High | Fluid loss reduction, shale stabilization, lubrication support |
Recommended Application Method
To achieve stable mud treatment performance, Anionic PAM or PHPA should be fully dispersed and dissolved before use.
Main Benefits for Drilling Mud Treatment
Better Solids Suspension
Helps keep drilling solids, fine particles, and cuttings suspended in the mud system.
Improved Hole Cleaning
Supports efficient cuttings transport from the borehole to the surface.
Stable Mud Viscosity
Helps maintain suitable viscosity for drilling fluid circulation and mud conditioning.
Reduced Solids Settling
Improves mud carrying capacity and reduces the risk of cuttings accumulation in the borehole.
Fluid Loss Control Support
Helps reduce excessive filtrate invasion and supports stable mud cake performance.
Improved Borehole Stability
Supports shale stabilization and reduces shale swelling, erosion, and dispersion.
Better Mud Lubricity
Helps improve lubrication and reduce friction during drilling operations.
Suitable for Brine Mud Systems
Can be used in fresh water, calcium brine, sodium brine, and KCL mud systems.
Application Areas
Bluwat Anionic PAM Polymer can be used in:
Packaging & Storage
Packaging
Powder products: Packed in 25 kg kraft bags with inner PE bags, palletized.
Emulsion products: Packed in 1000 kg IBC drum.
Storage
Store in original packaging in a cool and dry place. Keep away from heat, flame, and direct sunlight.
Shelf life: PHPA powder (2 years), PHPA emulsion (6 months).
Why Choose Bluwat Chemicals
Bluwat Chemicals supplies Anionic PAM, PHPA, and Polyacrylamide products for oilfield drilling, EOR, industrial water treatment, mining, paper making, sludge dewatering, and other industrial applications.
For drilling mud treatment and solids suspension applications, Bluwat can recommend suitable polymer grades according to drilling mud formulation, water quality, salinity, shale condition, solids content, and field performance requirements.
Bluwat provides stable factory supply, quality control, export experience, and complete technical documents including TDS, MSDS, and COA. This helps customers evaluate product quality, select suitable drilling mud additives, and manage international procurement more efficiently.
FAQ
Anionic PAM is used for solids suspension, cuttings carrying, mud viscosity improvement, drilling fluid conditioning, fluid loss control, shale stabilization, lubrication, and borehole stability.
Anionic PAM increases mud viscosity and improves the carrying capacity of drilling fluid, helping suspend cuttings and fine solids during circulation.
Yes. By improving mud viscosity and solids suspension, Anionic PAM helps transport drill cuttings to the surface and supports better hole cleaning.
Yes. Bluwat Anionic PAM and PHPA products are suitable for water-based drilling mud, fresh water mud, calcium brine, sodium brine, and KCL mud systems.
Yes. PHPA-type anionic polymers can help reduce fluid loss by improving mud stability and supporting lower mud cake permeability.
The recommended solution concentration is 0.1–0.3% solid.
The effective pH range is 5–14.
After dispersion into agitated water, stirring should continue for about 1 hour to ensure complete dissolution.
Powder products are packed in 25 kg kraft bags with inner PE bags. Emulsion products are packed in 1000 kg IBC drums.