The Preparation and Characterization of AM/2-EHA Copolymer as Profile Control Agent

Abstract

Nowadays, the earth’s available oil reserves decreases gradually while a great demand for oil is increasing.To improve oil recovery technique, the development of new profile control agent has important scientific significance and application value. A new copolymer of acrylamide (AM) and Isobutane-Ethylhexyl acrylate (2-EHA) was synthesized as profile control agent by free radical copolymerization. FT-IR and 1H-NMR were used for the structure characterization. Thermo gravimetric analysis, Core/Sand pack experiments and water drive displacement tests of copolymer particles were used to evaluate the properties. The results showed that the copolymer particles had good thermal stability, alkaline resistance, anti-salt property and excellent blocking property as profile control agent.