浅析两端加固密封长井段套管补贴技术在小修作业中的应用

Application of Casing Subsidy Technology in Workover Operation

衬管两端加固密封长井段套管补贴技术采用无接箍金属材料为加固密封段,承压强度高,施工时间短,工艺要求简单,补贴跨度大,对长井段套管损伤进行一次补贴,对补贴后的套管起到一定的支撑作用,可以恢复油水井的正常生产。在辛68斜106井上进行套管补贴的实际应用,套管修复后能保持井眼畅通,井壁规则的优点,套管柱强度提高,延长了井的使用寿命。

The subsidy technology of the long well section casing adopts the hoop less metal material to reinforce the sealing section,with high pressure strength,short construction time,simple process requirements,and large subsidy span.Once subsidize the casing damage of the long well section,which plays a certain supporting role for the subsidized casing,and can restore the normal production of the oil well.The practical ap-plication of casing subsidy in DXX68X106 well can keep the well unblocked after casing repair,and the advantages of well wall rules,improve the strength of casing string,and prolong the service life of the well.