阴离子型聚丙烯酰胺减阻性能评价及影响因素研究

发布时间：2018-08-18 11:06

【摘要】：为揭示不同因素对阴离子型聚丙烯酰胺类减阻性能的影响,研究了分子量大小、减阻剂浓度对滑溜水压裂液减阻性能影响,考察了不同浓度及类型条件下的滑溜水压裂液的抗温性能、抗盐性能。结果表明,在较低加量下,分子量对阴离子型聚丙烯酰胺水溶液减阻性能影响很小;其最佳浓度值的所在区间为:400~600×10~6;在清水常温条件下,减阻率到达72%;温度对阴离子型聚丙烯酰胺溶液减阻性能影响很大,80℃时,减阻率提高到78%;但其抗盐能力较差,在清水条件下,加入钠盐后,减阻率下降至70%;同样在清水条件下,随着钙盐的加量增加,减阻率下降至53%。
[Abstract]:In order to reveal the influence of different factors on the drag reduction performance of anionic polyacrylamide, the effects of molecular weight and drag reducing agent concentration on drag reduction performance of slippery water fracturing fluid were studied. The temperature resistance and salt resistance of slippery water fracturing fluid with different concentrations and types were investigated. The results show that the molecular weight has little effect on the drag reduction performance of anionic polyacrylamide aqueous solution at low dosage, and the optimum concentration is in the range of 600 脳 10 ~ (-6) in clear water at room temperature. The drag reduction rate reached 72; at 80 鈩，

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