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Partially hydrolyzed polyacrylamide (PHPA) is a widely used polymer in the oil and gas industry due to its lesser cost and good water solubility. PHPA is used as a functional additive in water-based drilling fluids. The PHPA mud system stabilizes shale formations and influences cuttings and wellbore stability. We have several grades to offer to meet our client’s need with variants.
| Sr. No | Particular | Results |
|---|---|---|
| 1 | Appearance | Granular Solid |
| 2 | Color | White |
| 3 | Ionic Character | Anionic |
| 4 | Charge density | Very High |
| 5 | Molecular Weight | 24M+ |
| 6 | Approx Bulk Density | 0.6-0.9 |
| 7 | Brookfield Viscosity (cP) at 5.0 g/l | 5000-8000 |
| 8 | Storage Temp (c) | 0-35 |
| Sr. No | Particular | Requirement | Results |
|---|---|---|---|
| 1 | Physical STATE | The material shall be in the form of free flowing powder, free from lumps and visible impurities. | Free flowing powder |
| 2 | Moisture Content | at 105 ± 2 0C percent by mass 7.0 (Maximum) | 6.7 |
| 3 | Ionic Character | Anionic | Anionic |
| 4 | Relative Dispersibility of Bentonite Pellets in 0.2% (w/v) Polymer Solution at 60 ± 5 0C with respect to Distilled water. | 175 (Maximum) | 174 |
| 5 | Degree of Hydrolysis,as Determined by Electrometric Titration, percent by mass | 20.0 to 40.0 | 31.0 |
| 6 | Apparent Viscosity of 0.2% (w/v) Polymer Solution in Distilled Water using a Fann VG Meter or Equivalent, cP: (i) At 24 ± 2 0C (ii)After aging at 110 ± 2 0C for 18 hours. |
9 (Minimum) Shall not be less than 80% of the value obtained at 6 (i). |
10.0 9.0 |
| 7 | Effect on 4 cP Bentonite Suspension at 0.2% (w/v) Polymer Concentration: (i) Apparent Viscosity at 24 ± 2 0C and pH 9.0, cP (ii) Apparent Viscosity after aging at 140 ± 2 0C for 24 hours, cP |
15 (min) Shall not be less than 80% of the value obtained at 7 (i). |
17.0 15.3 |
| Sr. No | Particular | Results |
|---|---|---|
| 1 | Appearance | Viscous Milky Liquid |
| 2 | Generic Name | Copolymer of Acrylamide |
| 3 | Ionic Character | Anionic |
| 4 | Charge density | Medium |
| 5 | Brookfield Viscosity (Cps) | 500-2000 |
| 6 | UL Viscosity (Cps) | 5.5- 7.5 |
| 7 | % NVS | 33- 40 |
| 8 | Specific Gravity | 0.98- 1.05 |
| 9 | Storage Temperature C | 0 c – 35 C |
| 10 | Shelf Life (Months)* | 6 Months |