采用丙烯酰胺、2-丙烯酰胺基-2-甲基丙磺酸和烯丙醇聚氧乙烯醚为原料,合成出聚合物降滤失剂,评价了该聚合物的抗温性能和抗盐钙能力.结果表明,该聚合物的防膨性能较好,2.0％该聚合物溶液的防膨率达到了89.9％;在200℃中仍具有较好的抗温能力,在NaC1浓度为30％和CaCl2浓度为10％的盐水泥浆中,钻井液的滤失量分别为5.5 mL和6.2 mL,抗盐钙性能较好.%The polymer fluid loss additive was synthesized by acrylamide,2-acrylamido-2-methyl-propane sulfonic acid and allyl alcohol polyoxyethylene ether.The temperature resistance and salt tolerance of this polymer has been investigated by a large amount of fundamental evaluation.The result showed that the polymer swelling performance is better,anti-swelling rate of the polymer solution in 2.0％ to 89.9％.This kind of polymer shows a good temperature resistance (200 ℃),in the presence of a concentration of NaCl of 30％ and CaCl2 of 10％ for the salt water mud,the filtration of drilling fluid was 5.5 mL and 6.2 mL and it illustrated that this polymer have a good performance in the resistance of the salt and calcium.
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