Abstract
The new high temperature resistance graft copolymer inhibitor based on starch and acrylic acid, 2-acrylamide-2-methyl propane sulfonic acid by solution polymerization reaction with self-made initiator. Laboratory evaluation experiment shows that a new scale inhibitor still has better effect， anti-scaling rate is 85.21%. The field test show that the dosage is 500ppm, the new high temperature resistance starch graft copolymer inhibitor by single well dosing, to solve problems of Xing-buried hills block and pipeline scaling and downhole ESP scaling.
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