Anionic Polyacrylamide APAM 0.1-0.5% Working Solution for EOR Sweep Efficiency Improvement in 25kg PE Bag

Product overview

In a heterogeneous reservoir, injected water may preferentially follow easier flow paths and leave some zones poorly contacted. A polymer flood is designed around the behavior of the injected fluid and its interaction with the reservoir. Sweep efficiency is therefore a reservoir-scale objective, rather than a property certified by the powder specification.

Bluwat APAM candidates can be evaluated for viscosity development and compatibility as part of that design. Their usefulness must be demonstrated through injection-water testing, stability assessment and displacement studies. The general TDS does not establish a specific increase in contacted reservoir volume or incremental oil recovery.

Product benefits

Technical specifications

Grade selection for this application

Provide reservoir heterogeneity, permeability distribution, oil viscosity, water chemistry, temperature and the planned injection pattern. Identify the expected sweep limitation and the basis of the target viscosity rather than selecting a polymer solely from a general EOR label.

Connect laboratory results to reservoir-core testing and simulation where appropriate. Polymer retention, inaccessible flow paths and pressure constraints can affect the field response. A grade that passes solution tests still needs a displacement evaluation before an improvement claim is justified.

Application evaluation and use

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 PE 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.

Why choose Bluwat Chemicals

Frequently asked questions