PHPA
PHPA — Partially Hydrolyzed Polyacrylamide
Shale encapsulator and borehole stabilizer used in PHPA mud systems; available as dry and liquid concentrates depending on origin.
Application
Inhibitive water-based muds for reactive shales, including PHPA and related polymer systems. Molecular weight and hydrolysis degree must match the mud programme.
Technical characteristics (quality certificate)
Typical values as stated on a mill quality certificate (passport) for a standard commercial grade. Actual lot values are confirmed in the COA / TDS for the selected manufacturer.
API fluid loss (max)
Per functional class / grade
API RP 13B-2 / API 13A
Shale inhibition / encapsulation
Per polymer molecular weight
API RP 13I
Loss on drying
≤ 10%
API 13A / Manufacturer TDS
Reference profile for orientation. For each supply we confirm grade, origin and certificate data against your specification, well conditions and delivery requirements.
Typical functions
- Shale encapsulation
- Cuttings integrity
- Borehole stability support
- Friction reduction in selected systems
Product information
- Chemical name
- Partially Hydrolyzed Polyacrylamide
- Formula / class
- PHPA
- Appearance
- White powder / granules or viscous liquid emulsion — depending on the selected form.
- Packaging
- Bags for dry grades; drums or IBCs for liquid grades. Confirm with the selected manufacturer.
Dry and liquid PHPA products are not drop-in equivalents. Charge density, molecular weight and carrier fluids differ by brand. Do not assume interchangeability with a named commercial polymer without TDS comparison.
In this category
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PAC LV
Low-viscosity polyanionic cellulose used to control fluid loss in water-based drilling fluids with limited impact on rheology.
Open product →PAC-HV
PAC HV
High-viscosity PAC providing both fluid-loss control and additional viscosity in water-based drilling muds.
Open product →CMC
CMC
Cellulose ether used as a fluid-loss additive and viscosifier in water-based drilling fluids, available in LV and HV grades.
Open product →