江汉可溶桥塞在涪陵页岩气田的应用

Application of Jianghan soluble Bridge Plug in Filling Shale Gas Field

江汉可溶桥塞由中心管、上卡瓦挡环、上下卡瓦、上下锥体、坐封拉杆等部件组成,具有长度短、有效密封时间长、压裂作业完成后溶解效率高等优点,并在涪陵页岩气田进行了多口井现场应用。应用结果表明,所有可溶桥塞均按照设计要求泵送至指定位置后正常坐封丢手,连续管通井作业无遇阻遇卡现象,桥塞完全溶解,可加大可溶桥塞推广应用力度。

Jianghan soluble bridge plug is composed of central pipe,upper slip retaining ring,upper and lower slips,upper and lower cones,setting pull rods,etc.It has the advantages of short length,long effective sealing time and high dissolution efficiency after a fracturing job.The field application results revealed that all the soluble bridge plugs were normally set and released after being pumped to the designated position according to the design requirements.There was no blocking or sticking while performing the wiper trip with the coiled tubing,which indicated full dissolution of the plug and facilitated its wider application.