Casing patch technique and diameter enlarging technique of casing damage wells 大慶油田套損井打通道加固技術(shù)
Connection and sealing device for new and old casings used when repairing the broken and damaged casing in well with large area , long length , as well as repairing the wrongly cut casing in well ? ? packer - type casing patch - connector 修復(fù)面積大,長度長,破裂,損壞的井內(nèi)套管,修復(fù)錯(cuò)斷的井內(nèi)套管時(shí)所用的新舊套管的連接密封裝置?封隔器型套管補(bǔ)接器。
[ english ] connection and sealing device for new and old casings used when repairing the broken and damaged casing in well with large area , long length , as well as repairing the wrongly cut casing in well ? ? packer - type casing patch - connector 修復(fù)面積大,長度長,破裂,損壞的井內(nèi)套管,修復(fù)錯(cuò)斷的井內(nèi)套管時(shí)所用的新舊套管的連接密封裝置?封隔器型套管補(bǔ)接器。