Anionic Polyacrylamide APAM with 0.05% Max Residual Monomer for Borehole Wall Stability in 25kg Kraft Paper Bag
Short description
Blufloc APAM is a water-soluble anionic polymer powder with a maximum residual monomer specification of 0.05%. For borehole-wall stability programs, a suitable grade is selected through fluid and formation testing. The product is one component of a complete drilling-fluid design, supplied here in 25 kg kraft paper bags.
Product overview
Borehole instability can arise from chemical interaction with shale, mechanical stress, erosion or a combination of factors. Where water sensitivity and cuttings dispersion are relevant, a compatible anionic polymer may be evaluated as part of the fluid's inhibition and solids-management program.
Bluwat approaches this application through grade selection and representative testing. A low residual-monomer specification is an important purchasing characteristic, but it does not establish wellbore-stabilization performance. Mud density, hydraulics, formation conditions and the complete additive package must remain part of the engineering assessment.
Product benefits
Defined product-quality criterion
The residual monomer limit gives buyers a defined product-quality criterion for technical comparison.
Application-focused grade selection
Grade selection can focus on limiting dispersion while maintaining workable mud rheology.
Staged polymer preparation
Dry powder packaging supports staged preparation for different intervals and fluid-maintenance needs.
Technical specifications
| Parameter | Specification |
|---|---|
| Brand and product family | Blufloc anionic polyacrylamide powder |
| Chemical identity | Anionic polyacrylamide APAM; CAS 9003-05-8 |
| Appearance | Off-white granular powder |
| Ionic charge | Anionic |
| Particle size | 20–100 mesh |
| Molecular weight | 5–25 million across the anionic grade family |
| Anionic degree | 5–100% across the anionic grade family |
| Solid content | 89% minimum |
| Residual monomer | 0.05% maximum |
| pH of 1% aqueous solution | 6–8 |
| General solution preparation | 0.1–0.5%; final treatment concentration is application dependent |
| Powder storage temperature | 0–35°C |
| Powder shelf life | 2 years under recommended storage conditions |
Molecular weight and anionic degree are family ranges, not a single grade specification. Confirm the selected grade and agreed supply criteria before ordering. ISO 9001 refers to the manufacturer’s quality management system, not a guarantee of application performance.
Grade selection for this application
Describe the instability symptoms and provide shale information, fluid composition, water chemistry and expected temperature exposure. Separate hydration-related behavior from mechanically driven collapse or erosion so the chemical screening addresses the actual problem.
Choose candidate grades using both shale-response tests and fluid-property limits. The pH of a 1% product solution is not a borehole operating-pH recommendation. Likewise, the 0–35°C storage range describes powder storage and does not define the polymer's downhole temperature capability.
Application evaluation and use
Establish the baseline shale dispersion or recovery response in the planned drilling fluid.
Compare APAM grades under representative chemical exposure and aging conditions, keeping the other additives unchanged.
Examine cuttings integrity together with rheology, filtration and any evidence of excessive solids agglomeration.
Use the selected formulation in a controlled interval evaluation with drilling-fluid and wellbore-condition monitoring.
Solution preparation and dosing
Use clean, compatible make-up water and add the powder gradually into an established mixing flow. Avoid dumping powder in one location, which can create lumps with dry cores. The TDS gives 0.1–0.5% as general solution-preparation guidance. If specified on an as-supplied powder mass basis, this corresponds to 1–5 kg of powder per 1,000 kg of final solution; agree the concentration basis for the project.
Allow approximately one hour of agitation as a starting reference, then confirm complete hydration. Water quality, temperature, grade and equipment affect the required time. The TDS’s 200–400 rpm reference is equipment dependent and should not be scaled to a different tank solely by rpm. Avoid severe shear after hydration. Determine the final treatment dosage through the application tests described above.
Packaging storage and handling
The featured packaging is a 25 kg kraft paper bag with an inner plastic liner. The TDS also lists 25 kg kraft paper or PE bags and 750 kg net big bags. Store powder dry, protected from direct sunlight and at 0–35°C. Keep opened packaging tightly closed. Consult the current SDS for handling, spill control and personal protection.
About Bluwat Chemicals
Bluwat Chemicals is a China-based manufacturer and exporter of water treatment chemicals and functional polymers. Our business began in 2000, Bluwat was formally established in 2002, and our Yixing factory began production in 2004. We operate three production bases, including Yixing and Huaibei, and have supplied a cumulative 800,000 tonnes of products to customers in around 100 countries and regions. Our portfolio includes BWD-01 Water Decoloring Agent, PAM powder and emulsions, PolyDADMAC, Polyamine, PAC, Ferric Sulphate and ACH.
Why choose Bluwat Chemicals
Manufacturing and export experience
Our production and export background supports technical communication and supply planning for overseas industrial buyers.
Application-focused selection
We help customers compare wastewater or process conditions, treatment objectives and suitable chemical combinations before choosing a product.
Broad treatment portfolio
Our coagulants, flocculants and specialty chemicals support projects in oil and gas, mining, textiles, pulp and paper, and municipal water treatment.
Quality and purchasing clarity
Our ISO 9001 quality management system and agreed grade specifications provide a basis for purchasing discussions. Application performance is verified through the relevant trials.
Frequently asked questions
Can APAM solve mechanically caused borehole collapse
A polymer additive cannot substitute for the required geomechanical and hydraulic design. First determine whether chemical shale interaction is a meaningful contributor to the instability.
Does 0.05% maximum residual monomer mean drinking-water approval
No. It is a chemical specification and does not establish certification for drinking water or any particular discharge use. Review the selected grade and intended application separately.
Is the powder storage temperature a drilling temperature rating
No. The 0–35°C value concerns storage. Application temperature suitability requires grade-specific fluid testing and thermal-aging evaluation.
Request product selection and a quotation
Send Bluwat the instability symptoms, formation information and fluid recipe to discuss appropriate APAM testing and 25 kg kraft paper bag supply.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.