为解决油田开采后期出现严重水窜且常规冻胶堵剂适用期短、强度受地层复杂环境影响较大等问题，以环氧树脂为主剂，经阴离子表面活性剂tween20和非离子表面活性剂SDS复配乳化制得性能稳定、易泵注的环氧乳液凝胶堵剂。结果表明，复配乳化剂能使环氧树脂完全乳化且乳化后乳液稳定性能良好，环氧树脂的最佳乳化HLB值为17~18，在40℃、24 h内的不稳定系数低于2；乳化剂质量分数为4%~5%时，含水率最高可达50%左右，乳液黏度为200 mPa·s以下，乳液粒径分布均匀、易泵注、耐剪切，填砂管模拟封堵的封堵率在90%以上。

In view of serious water shutoff phenomenon in the later stage of oilfield exploitation, conventional jelly channeling sealing agent has a short pot life and its strength is greatly affected by the complex environment of the stratum.A stable and easy-to-pump epoxy emulsion gel plugging agent is produced by emulsifying epoxy resin with anionic surfactant tween20 and nonionic surfactant SDS together.The results show that the compound emulsifier can completely emulsify epoxy resin and the emulsion obtained has a good stability.The best emulsification HLB value of epoxy resin is 17-18, the instability coefficient is less than 2 within 24 h at 40℃.If the addition amount of emulsifier is 4%-5%, the water content of emulsion will reach 50%, the viscosity is below 200 mPa·s, and the particle sizes distribute evenly.The emulsion is easy to pump and has high shear-resistant property.A blocking rate of over 90% can be achieved in sand-filled pipe simulated blocking test.

岳鹏(1987-),男,本科,工程师,主要从事碳酸盐岩油藏分析及提高采收率工作,1318426790@qq.com