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.
|4||Charge density||Very High|
|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|
|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|
|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|
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.
Shall not be less than 80% of the value obtained at 6 (i).
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
Shall not be less than 80% of the value obtained at 7 (i).
|1||Appearance||Viscous Milky Liquid|
|2||Generic Name||Copolymer of Acrylamide|
|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|