Soluble bridge plug suitable for re-fracturing construction of rebuilt shaft

The utility model relates to the technical field of soluble bridge plugs, and discloses a soluble bridge plug suitable for re-fracturing construction of a rebuilt shaft, which comprises a central pipe, and a rubber sleeve, a rubber sleeve protection ring, a bridge plug locking mechanism, a cone, a slip and a guide shoe are sequentially sleeved on the central pipe. The maximum diameter of the outer portion of the soluble bridge plug is 65 mm, and the minimum inner diameter of the inner portion of the soluble bridge plug is 26 mm. Compared with the prior art, the brand-new soluble bridge plug suitable for re-fracturing construction of a rebuilt shaft is adopted, smooth construction of shale gas old well re-fracturing multi-section and multi-cluster is effectively guaranteed, and the shale gas development cost is reduced. 本实用新型涉及可溶桥塞技术领域，公开了一种适用于重建井筒重复压裂施工的可溶桥塞，包括中心管，所述中心管上依次套设有胶筒、胶筒保护环、桥塞锁定机构、椎体、卡瓦、引鞋，所述可溶桥塞的外部最大直径为65mm、所述可溶桥塞的内部最小内径26mm。与现有技术相比，采用了一种全新的适用于重建井筒重复压裂施工的可溶桥塞，有效保障了页岩气老井重复压裂多段多簇的顺利施工，降低了页岩气开发成本。