WELLDONE produce Anionic Polyacrylamide, Nonionic Polyacrylamide, and Cationic Polyacrylamide in Granule, Powder, and Emulsion. Anionic Polyacrylamide are co-polymers of acrylamide with increasing proportions of acrylate groups, which give the polymers negative charges, and thus anionic active character, in aqueous solution. Nonionic Polyacrylamide are
technically pure polyacrylamides with neutral nonionic properties in the aqueous solution. Cationic Polyacrylamide are co-polymers of acrylamide with increasing proportions of cationic monomers. The cationic groups, which are thus introduced into the polymer, have positive charges in aqueous solution.

PHPA for Shale Inhibition/Clay Stabilization

Our range of shale inhibitors can prevent clay swelling. The addition of clay stabilizer would inhibit the clay and fines migration to block pore throats in acidization, fracturing and profile modification. The shale inhibitor adsorbs onto the cuttings and the borehole wall to protect the borehole. As a result, larger cuttings float to the surface and can then be removed. In addition, these inhibitors/stabilizers would prevent the collapse of the borehole, maintain the integrity of cuttings, stabilize the borehole surface, reduce the filter loss, improve the efficiency of the mud cake and also has the benefit of lubrication and emulsification.