Synthesis and Properties Evaluation of HMOPTA /AA/AS Copolymer for Drilling Fluid Thinner

摘要

Zwitterionic copolymer opolymer for drilling fluid thinner was synthesized by initiation of redox with 2-hydroxy-3 -methylacryl-oxypropyl trimethylammonium chloride(HMOPTA),acrylic acid(AA)and allyl sulfonicacid(AS) as raw materials and with water as solvent.The properties of slurry of copolymer were evaluated in laboratory, The experimental results showed that HMOPTA/AA/AS copolymer has very good thermal stability,viscosity reduction, inhibitory ability,heat-resistance and salt-tolerance.