Polyacrylamide

It also provides inhibition properties to fresh water, sea water and also in presence of calcium ions

It can be used as a flocculent in clear water drilling.

It also restricts the interaction of water hydratable & dispersable shales.

It functions as an inhibitor by coating or encapsulating formation & cuttings.

Advantages:

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

Application:

It is a co-polymer of anionic character and high molecular weight. It is a water soluble polymer which is primarily used as a highly efficient fluid loss reducer, viscosifier and protective colloid for shales and cutting in fresh water, calcium, sodium brines and KCL mud systems. It is compatible with most of the drilling fluid products, biopolymers, PAC, CMC etc. It maintains hole stability by preventing shale swelling and erosion.

Common Name: Partially Hydrolyzed Polyacrylamide (PHPA)

Description:

Polyacrylamide (PHPA) is a high molecular weight aqueous solution that controls fluid loss and increases viscosity.