CAS NO.: 9003-05-08

Other name: Partially Hydrolyzed Polyacrylamide, PHPA, Polyacrylamide, HPAM

PHPA is a high molecular weight dry granular partially hydrolyzed polyacrylamide – polyacrylate (PHPA) copolymer. A low dosage of PHPA can form a clear and viscous fluid. PHPA is an easy-to-mix product and is a proven suitable anionic polymer for improving core recovery in diamond drilling and in stabilizing reactive shales and clays in all forms of drilling. It is compatible with most of the drilling fluid products, biopolymers, PAC, CMC. It maintains borehole stability by preventing shale swelling and erosion.

Application:

PHPA maintains viscosity in solids-free drilling fluid. As a Bentonite extender in low-solids, non-dispersed mud, it can be used along with a small addition of Bentonite to suspend weight material.

Advantages:

•  It functions as an inhibitor by coating or encapsulating formation & cuttings.
•  It also restricts the interaction of water with hydratable & dispersible shales.
•  It can be used as a flocculant in clear water drilling.
•  It also provides inhibition properties to fresh water, sea water, and also in the presence of calcium ions.
•  The high viscosity of this drilling fluid helps in better removal of cuttings from the borehole.
•  It is resistant to bacterial fermentation.

Packaging: 

PHPA is packed in 25kg/50 Lbs (22.68 Kg) Sacks or 750 kg jumbo bags with PE inner.

Safety and Handling:

PHPA must be handled as an Industrial chemical, wearing protective equipment and observing the precautions as mentioned in the MSDS