不同调节剂对油田采出液处理效果影响研究

以粗石灰、精石灰、烧碱为pH调节剂,以聚合氯化铝(PAC)、聚丙烯酰胺(PAM)为悬浮物(SS)调节剂,将调节剂与采出液按一定比例混合,研究调节剂不同类型与不同质量配比条件下,各处理方案中pH、悬浮物的变化情况,分析处理成本,探讨最优的调节剂以及质量配比。结果表明:仅单独将精石灰作为pH调节剂时效果良好,沉淀物少(36 mm),成本低(0.014元/L),悬浮物含量降低36.89 mg/L;PAM为悬浮物调节剂时处理效果最佳,悬浮物含量降低至37.54 mg/L,成本适中(0.00125元/L)。为解决采出液处理过程中沉淀物过多、药剂过度使用、处理水质不达标等问题提供参考。

Coarse lime,refined lime and sodium hydroxide are used as pH adjusters,and polyaluminum chloride(PAC)and polyacrylamide(PAM)are used as suspended solids(SS)adjusters.To study the changes of pH and suspended matter in various treatment schemes under different types of regulators and different mass ratios,analyze the treatment cost,and explore the optimal regulator and mass ratio.Results showed that fine lime is as a good pH adjuster alone,with less sediment(36 mm)and low cost(0.014 yuan/L);when PAM is as a suspended matter adjuster,the treatment effect is the best(suspended matter content reduced to 37.54 mg/L)and the cost is moderate(0.00125 yuan/L),which provide a reliable basis for solving the problems of excessive precipitation in the oilfield produced liquid treatment,excessive use of chemicals,and treatment of substandard water.