【摘要】 本文以无水解的聚丙烯酰胺PAM为原料,合成了水溶性微凝胶。它的交联结构由σ键构成,在高温和高矿化度条件下,其流变性能基本不发生变化。在45℃,PAM(质量分数为1 5×10-3)微凝胶溶液增加驱油率达25%。通过对其驱油性能的研究发现微凝胶有着特殊的驱油作用。更多还原

【Abstract】 On the base of polyacrylamide with high molecular weight,the water-soluble PAM microgels was prepared.The crosslinked structure of the microgels is composed of σ bands,which makes little changes of the viscosity in the conditions of high temperature and salinity.At 45℃,the recovery of 15‰ microgels obtained 25% in brines.The PAM microgels is found to have special property in EOR by the research on it.更多还原