Tan Hongzhong, Mao Jincheng, Zhang Wenlong, Yang Bo, Yang Xiaojiang, Zhang Yang, Lin Chong, Feng Jianfa, Zhang Hao
State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China.
Institute of Engineering Technology, The Fourth Oil Extraction Plant of Huabei Oilfield Company, CNPC, Langfang 065000, China.
Polymers (Basel). 2020 Apr 20;12(4):955. doi: 10.3390/polym12040955.
Three kinds of drag reducer were synthesized by inverse emulsion polymerization and named PHWAM-1, PHWAM-2, and PHWAM-3. Drag reduction (DR) tests showed that the three drag reducers have different DR characteristics in fresh water and various saline waters because of their different types of hydrophobic monomers. PHWAM-1, without hydrophobic monomers, performs better in fresh water, while PHWAM-2 and PHWAM-3, with hydrophobic monomers, perform better in brine. In addition, PHWAM-3, which has twin-tailed hydrophobic monomers, performs best in high-concentration brine. Measurements of micro-particle size and observations of spatial structure suggest that although the stronger hydrophobic polymer has no DR advantage over a linear polymer in fresh water, the molecular chains form a mutually associative supporting structure that improves the DR performance over that of a linear polymer in high-concentration brine.
通过反相乳液聚合合成了三种减阻剂，分别命名为PHWAM - 1、PHWAM - 2和PHWAM - 3。减阻（DR）测试表明，由于三种减阻剂的疏水单体类型不同，它们在淡水和各种盐水中具有不同的减阻特性。不含疏水单体的PHWAM - 1在淡水中表现更好，而含有疏水单体的PHWAM - 2和PHWAM - 3在盐水中表现更好。此外，具有双尾疏水单体的PHWAM - 3在高浓度盐水中表现最佳。微观粒径测量和空间结构观察表明，尽管较强的疏水聚合物在淡水中相对于线性聚合物没有减阻优势，但在高浓度盐水中，分子链形成相互关联的支撑结构，从而提高了相对于线性聚合物的减阻性能。
