Synthesis of AEDMAC/AM/AA Copolymer Filtrate Reducer for Drilling Fluid

A filtrate reducer (2-acrylamidoehyldimethylammoniumm chloride-acrylic acid-acrylamide) copolymer was synthesied. The experiment showed that the copolymer filtrate reducer is pretty good in depressing the filtration rate, collapse prevention, reservoir pr