高温抗盐降滤失剂SHR的研究与应用

Research on Heat Resistant and Salt Tolerant Filtrate Loss Control Agent SHR and Its Uses

采用酰胺衍生物与不同来源褐煤接枝合成了降滤失剂SHR。进行了室内评价和现场应用试验，结果表明，SHR具有很好的抗温。抗盐及抗钙性能，在降滤失的同时还具有很好的防塌润滑及降粘改善流变性等多种功能。

The synthesis of filtale loss control agent SHR by grafting derivatives of amide to humic acid from lignite of different sotirces has been introduced in this paper. The results of laboratory evaluation and field application test indicate that it has good resistance to heat, salt and calcium, and at the same time of reducing the filtation loss, it also shows excellent collapse prevention, lubrication and viscosity reduction for improving the rheological property as well.