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多功能油井水泥外加剂J-2B具有降低浅失量、防窜、弱触变性、微膨胀等性能,与膨润土复配使用可提高水泥浆的触变性能,与硅粉复配使用可提高水泥浆的抗高温性能。使用J-2B处理剂的水泥浆(需要时同时加入膨润土或硅粉)在浅层气井、稠油热采井、救援井、调整井中的固井应用结果表明,J-2B能在各种井况下的固井中提高封固质量。
Multi-purpose oil well cement admixture J-2B has the properties of reducing the loss, preventing channeling, weak thixotropy and slight expansion. The compounding with bentonite can improve the thixotropic property of cement slurry. The compounding with silica fume can improve the performance of cement High temperature resistance of pulp. Cement slurry with J-2B treatment (bentonite or silica fume added if needed) Application of well cementing in shallow wells, heavy oil thermal recovery wells, rescue wells, and conditioning wells shows that J-2B can be used in various wells Cementing conditions to improve the quality of sealing.