For fractured reservoirs ,water shutoff and profile control measures often failed and are inef-fective due to serious leakage of plugging agent in formation .To address this problem ,two groups of par-tially hydrolyzed polyacrylamide (HPAM )are reacted with two crosslinking agents to generate a high-strength polymer plugging agent .Through analysis ,an optimum formula of ingredients is defined as fol-lows :5 000 7 000 mg/L HPAM + 125 mg/L organic chrome crosslinking agent + 80 mg/L phenol+ 120 mg/L urotropine+80 mg/L intensifier .Influences of temperature ,pH value and salinity on the profile con-trol system were studied ,and the gelling performance of double-group secondary crosslinking system was compared with two crosslinking agents separately .The single-barreled and double-barreled parallel cores were used in plugging test to simulate the profile control ,the results show that plugging rate is over 99%and break-through pressure gradient higher than 36 M Pa/m for single-barreled cores .For the double-bar-reled parallel cores ,the plugging rate of high permeability core is over 98% ,and that of low permeability core is less than 15% .It is concluded that double-group secondary crosslinking system can prevent plug-ging agent from leaking in the fractures ,and greatly reduce possibility of plugging the passageway of oil and gas when it penetrates into the micro-fractures .This system is prospective for profile control in frac-tured reservoirs .%针对裂缝性油藏调剖堵水措施成功率低、效果差，堵剂在注入过程中漏失严重等问题，研制了一种利用部分水解聚丙烯酰胺（H PA M ）的2个不同基团分别和2种交联剂反应形成高强度的聚合物调剖体系。经过组分用量分析，确定适用配方为：5000～7000 mg/L HPAM＋125 mg/L有机铬交联剂＋80 mg/L苯酚＋120 mg/L乌洛托品＋80 mg/L增强剂，考察了温度、pH值、矿化度对该调剖体系性能的影响，对比了双基团二次交联调剖体系与2种交联剂单独使用时调剖体系的成胶性能。采用单管和双管并联岩心封堵试验模拟调剖体系的调剖过程，试验结果表明，调剖体系对单管岩心的封堵率高于99％，突破压力大于36 M Pa/m ；对双管并联岩心中高渗岩心的封堵率在98％以上，对低渗岩心的封堵率低于15％。研究表明，双基团二次交联调剖体系可以降低在裂缝中的漏失，减轻进入微裂缝对油流通道造成的堵塞，在裂缝性油藏调剖堵水中具有良好的应用前景。
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