Temperature-salt Resistance Phpa
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Temperature-salt Resistance PHPA
I. Description
PHPA is a specially treated high molecular weight Partially Hydrolyzed Polyacrylamide polymer for all water-base drilling fluids. It functions as viscosifying agent, shale and bore-hole stabilizer, encapsulator, bentonite extender, flocculation agent and assist with fluid loss control.
II. Application & Features
PHPA is applicable in freshwater, seawater, saturated saltwater mud, KCl and solids free brine systems.It provides cuttings encapsulation, shale filming/inhibition, flocculation of drilled solids, viscosity and lubricity.
PHPA's strong encapsulating/filming action stabilizes clay and shale formations, blocks the absorption or inhibition of water from the drilling fluids, prevents clay and shale cuttings from disintegration and dispersion into the mud while carrying up the annulus from bit to surface.
Fluids contained PHPA has property of shear-thinning which helps maximize drill rate by exhibiting low bit viscosity and high lifting capacity at the lower shear rate at the annulus.
Items
Anionic Polyacrylamide
Specifications
Results
Characteristics
Appearance
White Powder
White Powder
Filtration ratio
≤1.2
1.0
Toxicity
Non-toxic
Non-toxic
Molecular Weight,Million
Very High
Very High
Degree Of Hydrolysis,%
Medium
Medium
Viscosity , cp
≥35
38
Residual monomers(Wet basis),%
≤0.05
0.03
Residual acrylamide content,%
≤0.1
0.05
Particle size
≤0.15mm
≤5%
≤5%
≥1.5mm
≤2%
≤2%
≥2mm
0%
0%
Thermal stability(30 Days)
≥80
85
Bulk density
0.75-0.85g/cc
0.75-0.85g/cc
Disslove Time, minute
≤90
60
IV. Packaging
25Kg triple composite /PE Bag, it can also be customized packaging.
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