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为了研究大庆油田A区块整体深度调剖技术,探索中低渗透油田高含水期提高采收率技术途径,实验用配方由堵剂(聚丙烯酰胺PAM)、交联剂(六次甲基四胺(CH2)6N4)、固化剂(苯酚C6H5OH)和缓凝剂(草酸H2C2O4·2H2O)四种原料组成,考察了聚合物相对分子质量、聚合物浓度、交联剂浓度、固化剂浓度、缓凝剂浓度对凝胶体系的影响。确定了酚醛树脂凝胶体系的在大庆A区块的最佳使用条件。
In order to study the overall depth profile control technology in Block A of Daqing Oilfield and to explore the technical approach to increase oil recovery in high water cut stage of medium and low permeability oilfield, the experimental formulation consists of plugging agent (polyacrylamide PAM), crosslinking agent Amine (CH2) 6N4), curing agent (phenol C6H5OH) and retarder (oxalic acid H2C2O4 · 2H2O). The effects of relative molecular mass, concentration of polymer, concentration of crosslinking agent, concentration of curing agent, Effect of agent concentration on the gel system. The best conditions for use of the phenolic resin gel system in Block A of Daqing were determined.