发明名称 METHOD FOR REPAIR OF DRIVE PIPE
摘要 A method for repair of drive pipe includes crimped plasters lowering to defect site, installation of those and pressing to the drive pipe with closing each other and defect section. Pressing of plasters is performed due to energy of directed blast in well liquid.
申请公布号 UA27032(U) 申请公布日期 2007.10.10
申请号 UA20070006857 申请日期 2007.06.18
申请人 发明人 KAZANTSEV VIKTOR MYKHAILOVYCH;LYSIANYI GEORGII MYKOLAIOVYCH;NAHORNYI VOLODYMYR PETROVYCH;OHORODNIKOV PETRO IVANOVYCH
分类号 E21B29/00 主分类号 E21B29/00
代理机构 代理人
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