Preparation and Performance of Organosilicon Ternary Copolymer Scale Inhibitors
The organosilicon terpolymer scale inhibitor(EAVT)was synthesized by copolymerization of epoxy succinic acid,vinyl triethoxysilane and acrylic acid as starting materials and azobisisobutyronitrile as initiator.The influence of polymerization conditions on the performance of EAVT calcium scale inhibition was explored,and the performance of EAVT on single scale and composite scale was evaluated.The results show that the optimal synthesis conditions are that under the temperature of 65 ℃,4 hours,6 wt％of initiator,and the ratio of 0.8∶1∶0.8(epoxy succinic acid,acrylic acid,and vinyl triethoxysilane).When EAVT is 100 mg/L,its scale inhibition rates for calcium magnesium scale and barium strontium scale in the formation water of a certain oilfield are 88.28％and 87.26％,respectively.
万方数据
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