BLUFLOC HA7525 PAM 25 Million Molecular Weight for Oil Drilling Fluid Viscosity Control and Fluid Loss Reduction

Product Overview

BLUFLOC HA7525 PAM is a high molecular weight anionic polyacrylamide powder designed for oil drilling fluid applications. With a molecular weight grade up to 25 million, HA7525 provides strong viscosity building performance and supports drilling mud stability in water based drilling fluid systems.

In oil drilling operations, drilling fluid must maintain stable viscosity, carry cuttings, reduce friction, control filtrate loss and protect the borehole wall. If the mud viscosity is too low or unstable, cuttings may settle, borehole cleaning may become difficult and the drilling fluid system may lose control. If fluid loss is too high, filtrate can enter sensitive formations and increase the risk of shale swelling, borehole instability and poor mud cake quality.

BLUFLOC HA7525 PAM helps improve oil drilling fluid performance by increasing viscosity, supporting rheology control and helping reduce excessive fluid loss. It is suitable for oilfield drilling mud viscosity control, fluid loss reduction, shale stabilization, lubrication improvement, cuttings suspension and selected oilfield mud water treatment applications.

Key Product Features

High molecular weight anionic PAM grade up to 25 million

Designed for oil drilling fluid viscosity control

Helps reduce excessive drilling fluid loss

Supports water based drilling mud stability

Improves drilling mud rheology and suspension capacity

Helps carry and suspend drill cuttings during circulation

Supports shale stabilization and borehole wall protection

Improves lubrication performance in drilling fluid systems

Minimum 89 percent solid content for stable quality

20 to 100 mesh granular powder for industrial handling

Recommended working concentration from 0.1 to 0.5 percent

Factory direct supply with technical support and customized grade options

Technical Specifications

Main Applications in Oil Drilling Fluid

Viscosity Control

HA7525 PAM is used to improve the viscosity of water based drilling fluids. Proper viscosity helps drilling mud carry cuttings, maintain stable circulation and support better hole cleaning performance.

Fluid Loss Reduction

Excessive fluid loss can reduce mud performance and increase the risk of formation damage or shale instability. HA7525 helps improve the polymer structure of the drilling fluid and supports better filtration control in suitable mud formulations.

Water Based Drilling Mud Additive

HA7525 is suitable for water based drilling mud systems where a high molecular weight anionic polymer is required. It can be used as a viscosifier, rheology control aid, suspension support polymer and mud stabilization additive.

Shale Stabilization

In shale and clay rich formations, water invasion may cause shale swelling, dispersion and borehole instability. HA7525 supports shale stabilization by improving mud viscosity, mud structure and fluid loss control behavior.

Borehole Stability

Stable drilling fluid helps protect the borehole wall. HA7525 supports borehole stability by improving mud consistency, reducing excessive filtrate invasion and helping the mud system perform more consistently during circulation.

Cuttings Suspension

High molecular weight PAM can help improve the suspension and carrying capacity of drilling fluid. This helps transport drill cuttings from the bottom of the well to the surface and reduces the risk of cuttings settling.

Lubrication Support

After proper dissolution, HA7525 forms a viscous polymer solution that can support lubrication in water based drilling mud. Better lubrication helps reduce friction between drilling tools, mud and borehole wall.

Oilfield Mud Water Treatment

HA7525 can also be used in selected oilfield wastewater or mud water treatment systems where suspended solids settling, mud solids separation and clarification are required.

Why 25 Million Molecular Weight Matters

The molecular weight of polyacrylamide strongly affects its viscosity building ability. HA7525 is positioned as a high molecular weight anionic PAM grade with molecular weight up to 25 million, making it suitable for drilling fluid systems that need stronger viscosity control and suspension performance.

Higher molecular weight helps the polymer form a stronger solution structure after dissolution. In drilling mud, this can support:

Better viscosity response

Improved cuttings suspension

More stable rheology

Better mud carrying capacity

Stronger support for fluid loss reduction

Improved water based mud stability

For oilfield applications, the final dosage and grade selection should be based on mud formulation, water salinity, temperature, shale activity and target drilling fluid performance.

How HA7525 Helps Reduce Fluid Loss

In water based drilling mud, filtrate loss occurs when the liquid phase enters the formation. High fluid loss may cause shale hydration, unstable borehole conditions and poor mud cake performance.

HA7525 helps support fluid loss reduction by improving the polymer network in the mud system. This can help the drilling fluid maintain better structure and reduce uncontrolled water phase movement in suitable formulations.

HA7525 is not only a viscosity control polymer. It can also work as a performance support additive for drilling mud systems that need both viscosity improvement and filtration behavior support.

How HA7525 Works in Drilling Mud

After HA7525 powder is fully dissolved in water, it forms a high viscosity polymer solution. When added into the drilling mud system, the polymer chains disperse through the fluid and help improve mud viscosity, suspension and stability.

This helps the drilling fluid system:

Carry cuttings more effectively

Maintain stable mud circulation

Support shale stabilization

Reduce excessive filtrate loss

Improve lubrication during drilling

Support better borehole wall protection

The product should be fully dissolved before being added to the mud system. Incomplete dissolution may reduce viscosity control and fluid loss reduction performance.

Typical Problems HA7525 Can Help Improve

Low drilling mud viscosity

Unstable water based drilling fluid rheology

Excessive fluid loss

Poor mud cake quality

Weak cuttings suspension

Cuttings settling during circulation

Shale swelling and dispersion

Borehole instability

High friction during drilling operation

Need for a high molecular weight oilfield PAM additive

Recommended Solution Preparation

Prepare HA7525 solution at 0.1 to 0.5 percent concentration.

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 the powder too quickly because lumping may occur.

Avoid excessive high speed agitation because it may damage polymer molecular chains.

Make sure the polymer is fully dissolved before dosing into the drilling fluid system.

Do not add dry powder directly into high solids drilling mud without proper pre dissolution.

Suggested Application Process

Prepare clean water in a mixing tank.

Start agitation at the recommended speed.

Add HA7525 powder slowly and evenly.

Continue agitation until the polymer is fully dissolved.

Dose the prepared HA7525 solution into the water based drilling mud system.

Mix evenly to distribute the polymer through the mud.

Check viscosity, filtration behavior, suspension and mud stability.

Adjust dosage according to field testing results.

Compatibility testing with other drilling mud additives is recommended before large scale field use.

General Dosing Guidance

The actual dosage depends on drilling mud formulation, water quality, salinity, temperature, mud density, shale activity, target viscosity, fluid loss requirement and compatibility with other additives.

For viscosity control, the dosage should be adjusted according to the required rheology and cuttings carrying capacity.

For fluid loss reduction, HA7525 should be tested together with the existing mud formulation to confirm filtration behavior and mud cake performance.

Bluwat can provide product selection advice and dosing recommendations according to customer drilling fluid requirements.

Product Advantages for Oilfield Buyers

Specific HA7525 grade for high molecular weight anionic PAM application

Molecular weight grade up to 25 million

Suitable for viscosity control and fluid loss reduction

Supports water based drilling mud stability

Helps improve cuttings suspension and mud carrying capacity

Supports shale stabilization and borehole stability

Can improve lubrication in drilling mud circulation

Minimum 89 percent solid content

20 to 100 mesh powder form

Recommended 0.1 to 0.5 percent working concentration

Low dosage and economical use

Factory direct supply from China

TDS, MSDS and COA available

Customized molecular weight and anionic degree available

Packaging and Storage

BLUFLOC HA7525 PAM 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 global 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 oilfield drilling, EOR, 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 drilling mud formulation, salinity, temperature and field performance requirements.

Available Documents

TDS available

MSDS available

COA available

Sample support available

OEM packaging available

Customized product recommendation available

FAQ