HA7525 High Molecular Weight Anionic Polyacrylamide 25 Million for Oil Drilling Fluid Additive and Shale Stabilization

Product Overview

BLUFLOC HA7525 Anionic Polyacrylamide is a water soluble polymer powder used in oil and gas drilling applications. With high molecular weight and anionic charge, HA7525 can help improve the rheology of water based drilling fluids, enhance viscosity, support cuttings suspension and reduce the instability caused by shale swelling and dispersion.

In oil drilling operations, unstable formations, poor mud viscosity, excessive fluid loss and weak shale inhibition may cause borehole instability, higher drilling risk and increased treatment cost. HA7525 is used as a drilling fluid additive to improve drilling mud performance and support more stable drilling operation.

It is suitable for water based drilling mud systems, oilfield drilling fluid preparation, shale stabilization, borehole support, drilling mud lubrication, fluid loss control and selected EOR polymer applications.

Key Product Features

High molecular weight grade up to 25 million

Anionic polyacrylamide powder for oil drilling fluid systems

Helps improve drilling mud viscosity and rheology

Supports shale stabilization and reduces shale swelling tendency

Improves lubrication performance in water based drilling mud

Helps reduce fluid loss and improve mud cake quality

Supports cuttings suspension and solid carrying capacity

Low dosage requirement and economical use

Easy to dissolve in water under proper agitation

Suitable for oilfield drilling fluid additive and EOR related polymer applications

Technical Specifications

Main Applications in Oil Drilling

Drilling Fluid Additive

HA7525 can be used as a polymer additive in water based drilling fluid systems. It helps improve mud viscosity, carrying capacity and general drilling fluid stability.

Shale Stabilization

In formations containing active shale or clay, water invasion may cause swelling, dispersion and borehole instability. HA7525 helps improve the stability of the drilling fluid system and supports shale inhibition performance.

Fluid Loss Control

Fluid loss is one of the common problems in drilling mud operation. HA7525 can help improve the mud system structure and reduce excessive filtrate loss, supporting better borehole protection.

Lubrication Improvement

The polymer solution formed by HA7525 can improve lubrication in water based drilling mud, helping reduce friction between drill pipe, mud and formation.

Viscosity and Rheology Control

HA7525 is suitable for drilling systems that require higher viscosity and better rheological control. It helps improve the suspension of cuttings and supports smoother drilling fluid circulation.

Cuttings Suspension

High molecular weight anionic PAM can help improve the ability of drilling fluid to suspend and carry cuttings, especially in mud systems where fine solid particles need better dispersion and transport control.

EOR Polymer Related Applications

For selected enhanced oil recovery applications, high molecular weight anionic polyacrylamide can be used to improve water viscosity and support mobility control. Final product selection should be based on salinity, temperature and reservoir conditions.

Why HA7525 Is Suitable for Oil Drilling Fluid

HA7525 is selected for oil drilling applications because it combines high molecular weight, anionic charge and good water solubility. These properties allow it to work as a viscosifier, shale stabilization aid, fluid loss control support polymer and drilling mud performance improver.

Compared with low molecular weight polymers, HA7525 provides stronger viscosity building performance at relatively low dosage. This makes it suitable for drilling fluid systems where efficient performance and cost control are both important.

Recommended Solution Preparation

The recommended dissolving concentration is 0.1 to 0.5 percent.

Add HA7525 slowly into clean water under continuous agitation.

Maintain agitation speed around 200 to 400 rpm.

The normal dissolving time is about 1 hour, depending on water quality, temperature and mixing conditions.

Avoid very high speed agitation because excessive shear may damage the polymer molecular chain.

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

Incomplete dissolution or polymer lumping may reduce product performance.

General Dosing Guidance

The actual dosage depends on drilling fluid formulation, water quality, mud density, salinity, temperature, shale activity and the required viscosity level.

For best performance, laboratory testing or pilot testing is recommended before field use.

Bluwat can provide product selection support and dosing suggestions according to the customer’s drilling mud system and field requirements.

Typical Use Problems HA7525 Can Help Solve

Drilling mud viscosity is not stable

Shale swelling causes borehole instability

Fluid loss is too high

Cuttings suspension is weak

Mud lubrication performance is insufficient

Drilling fluid needs better rheology control

Water based drilling mud requires a high molecular weight polymer additive

Oilfield operation requires a factory supplied PAM with stable quality

Packaging and Storage

HA7525 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 place.

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.

Bluwat Factory Advantages

Bluwat Chemicals is a professional manufacturer and exporter of polyacrylamide and water treatment chemicals with more than 25 years of production experience.

We provide stable quality, factory direct supply, technical support and customized polymer selection for different oilfield and industrial applications.

Our PAM product range includes anionic polyacrylamide, cationic polyacrylamide, nonionic polyacrylamide and emulsion polyacrylamide. Different molecular weight and charge density options are available for drilling fluids, EOR, wastewater treatment, sludge dewatering, mining, papermaking and other industrial uses.

Available Documents

TDS available

MSDS available

COA available

Custom product recommendation available

OEM packaging available

FAQ

What is HA7525 Anionic Polyacrylamide used for?

HA7525 is mainly used as a high molecular weight anionic polyacrylamide for oil drilling fluid additive, shale stabilization, fluid loss control, lubrication improvement, viscosity control and selected EOR polymer applications.

Is HA7525 suitable for water based drilling mud?

Yes. HA7525 is suitable for water based drilling mud systems where viscosity improvement, borehole stability and mud performance support are needed.

What is the molecular weight of HA7525?

HA7525 is a high molecular weight anionic PAM grade with molecular weight up to 25 million.

What is the recommended dissolving concentration?

The recommended dissolving concentration is 0.1 to 0.5 percent.

How long does HA7525 take to dissolve?

Normally it requires about 1 hour of agitation to fully dissolve, depending on water temperature, water quality and mixing conditions.

Can HA7525 help with shale stabilization?

Yes. HA7525 can help improve drilling fluid stability and support shale stabilization in water based drilling mud systems.

Can HA7525 be used for EOR?

HA7525 can be considered for selected EOR polymer applications, especially where high molecular weight anionic polymer is required. Final selection should be based on reservoir temperature, salinity and field testing.

Can Bluwat provide technical support?

Yes. Bluwat can provide product selection support, dosing recommendations, testing guidance and customized PAM solutions according to different oilfield and industrial applications.