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固井后环空气窜是影响油田开发效果的重要因素。本文对目前的丁苯胶乳防窜水泥浆体系和纤维防窜水泥浆体系的防窜机理进行了分析和研究。在此基础上进行了防气窜水泥浆室内研究,对缓凝剂和抗高温材料进行试验和评价,优选出了微膨增韧胶乳防气窜水泥浆配方,满足固井水水泥浆防气窜的性能要求。
After the cementing ring air channeling is an important factor affecting the development of the oil field. In this paper, the anti-channeling mechanism of SBR latex anti-channeling slurry system and fiber anti-channeling slurry system were analyzed and studied. On the basis of this, the research on anti-gas channeling grouting slurry was carried out, the retarder and high temperature resistant material were tested and evaluated, and the micro-swelling toughening latex anti-gas migration grouting formula was selected to meet the requirements of cementing grouting Channeling performance requirements.