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针对常规调驱剂在裂缝性高温、高盐油藏调驱效果差的难题,以丙烯酰胺、衣康酸、二甲基二丙烯酰胺基磺酸钠为聚合单体,以过硫酸铵和亚硫酸氢钠为氧化还原引发剂,N,N-亚甲基双丙烯酰胺为化学交联剂,锂皂石为物理交联剂,合成了一种耐温、耐盐预交联凝胶颗粒KY-2,并对其微观形貌进行了表征,分析了化学交联剂质量分数对预交联凝胶颗粒吸水性能的影响,评价了其耐温耐盐性能、抗剪切性能和调驱性能.结果表明:颗粒的吸水速率随着交联剂质量分数的增加而降低,该颗粒具有很好的耐温耐盐性和抗剪切性能,在渗透率级差为4的条件下,水驱后提高采收率幅度达15.5％.预交联凝胶颗粒KY-2对裂缝性高温高矿化度非均质油藏具有较强的适应性.“,”Aiming at the poor profile control of flooding effect of conventional flooding agent in the high temperature and high-salinity fracture reservoir,a new kind of temperature-resistance and salt-tolerant preformed particle gel KY-2 is synthesized,using ammonium persulfate and sodium hydrogen sulfite as initiator,acrylamide,itaconic acid and 2-dimethyl acrylamide-2-sodium sulfonate as comonomers,N,N-methacrylamide as the crosslinker and hectorite as the inorganic crosslinker.The micromorphology,shear-resistance property,swelling property,temperature-resistance property,salttolerant property and profile control property are characterized and evaluated.The results show that the water absorption rate decreases with an increase of the concentration of chemical crosslinker.The preformed particle gel has good temperature-resistance,salt-tolerant and shear-resistance property.The recovery ratio can reach 15.5％ on the basis of water flooding under the permeability ratio of 4.The preformed particle gel KY-2 has better adaptability in the high temperature and high-salinity heterogeneous fracture reservoir.