随着水平井分段压裂改造技术大幅度提高，可溶桥塞成为了层间封隔的重要工具之一，对比常规可钻式桥塞，可溶桥塞无需钻磨，自行溶解后即可实现井筒全通径并快速投产，具有作业成本低、施工周期短、开采效率高的优点，有效解决了压裂作业低产的问题，更加符合油气井现场降本增效的需求。基于此，重点调研了中外可溶桥塞的研究进展，介绍了压裂可溶桥塞的关键技术，概述了各类压裂可溶桥塞现状，对其性能特点进行了对比分析，并从工艺技术方面详细阐述各类可溶桥塞的难点与不足。基于各类桥塞的对比分析和非常规气井井况对井下压裂工具的要求，提出了压裂可溶桥塞未来的发展建议。

With the significant improvement of the staged fracturing transformation technology of horizontal Wells, soluble bridge plugs have become one of the important tools for interlayer sealing. Compared with conventional drillable bridge plugs, soluble bridge plugs can realize full wellbore diameter and be quickly put into production after self-dissolution without drilling and grinding, having the advantages of low operating cost, short construction period and high mining efficiency. And low production in fracturing operations can be solved efficiently. It can be more in line with the demands of cost reduction and efficiency improvement when in oil and gas well site. Based on this, the research progress of soluble plugs at home and abroad was mainly investigated, the key technologies of fracturing soluble plugs was introduced, the status quo of various fracturing soluble plugs was summarized, their performance characteristics was compared and analyzed, and the difficulties and shortcomings of various soluble plugs was described in detail from the aspect of process technology. On account of the comparison and analysis of various types of bridge plugs and the requirements of unconventional gas well conditions for underground fracturing tools, the future development of fracturing soluble bridge plugs was proposed below.