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Partially Hydrolyzed Polyacrylamide

Partially Hydrolyzed Polyacrylamide :

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.

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Powder PHPA High Molecular Weight:

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

Powder PHPA Regular Grade:

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

PHPA Liquid:

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