... Anionic Polyacrylamide Anionic Polyacrylamide / PAM / phpa for Oil drillingSpecificationsAnionic PHPA for Drilling mud Industrial 1.molecular weight: ... fracturing fluid and selective water shutoff, for Enhanced Oil Recovery Significant Effect;2, In the mining, coal ... recovery;5, Used in Textile, Carpet Industry, Sizing, Quick-setting Cement, Synthetic Resin Coating. Photosensitive Polymers, Adhesives, ...