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油田常用的调剖剂在抗盐、抗剪切等方面存在一定缺陷 ,为此研究了一种深度调剖剂 .复合离子聚合物由具有阴、阳、非离子的单体三甲基单烯丙基氯化铵、丙烯酰胺、丙烯酸共聚而成 ,相对分子质量约为 40 0万 ,阳离子摩尔分数为 18% .复合离子聚合物与六次甲基四胺微交联形成复合离子调剖剂 ,其最佳配方为 :复合离子聚合物的质量分数为0 .6 % ,六次甲基四胺的质量分数为 0 .4% ,pH值调节剂的质量分数为 0 .1% ,其余为自来水 ,养护温度为 45℃ .将配制的调剖剂用于大庆矿场 ,结果表明 :调剖后主力吸水层葡Ⅰ 2相对吸水率下降了 36 .4% ,与其相连通的 2口油井 ,调剖初期单井日增油为 5 .5t,含水率下降了 7.9% ,调剖效果明显
The profile control agent commonly used in the oilfield has certain defects in the aspects of salt resistance and shear resistance, so a depth profile control agent has been studied for this purpose.Composite ionic polymer is composed of monomelic monomethacrylate with anionic, cationic and nonionic Propyl ammonium chloride, acrylamide, acrylic acid copolymer, the relative molecular mass of about 40 million, cationic mole fraction of 18%. Composite ionic polymer and hexamethylenetetramine micro-crosslinking to form a compound ion profile control agent , The best formula is: the composite ionomer mass fraction of 0.6%, hexamethylenetetramine mass fraction of 0.4%, pH adjusting agent mass fraction of 0.1%, the rest is Tap water and curing temperature was 45 ℃ .The profile control agent was used in Daqing Mine.The results showed that the relative water absorption of the main water absorption layer Ⅰ 2 after profile control decreased by 36.4% In profile control, single-well daily oil increase was 5.5 tons, moisture content decreased by 7.9% and profile control effect was obvious