发明名称 METHOD FOR WELL PERFORATION
摘要 Method for perforation of well includes installation of tubing string in well over perforation interval, replacement of working liquid from perforation interval with gaseous medium, lowering perforator to perforation interval and perforation of well. Perforation is performed in two stages, at that at first stage one initiates several charges at beneath of perforator, with replacement of working fluid from perforation interval or with its liquefaction with stratal gas through perforation openings formed, and at the second stage one performs perforation with the upper charges of perforator.
申请公布号 UA47174(U) 申请公布日期 2010.01.25
申请号 UA20090006062U 申请日期 2009.06.12
申请人 UKRAINIAN STATE GEOLOGICAL SURVEY INSTITUTE 发明人 VOITENKO YURII IVANOVYCH;HOSHOVSKYI SERHII VOLODYMYROVYCH;DRACHUK OLEKSANDR HRYHOROVYCH
分类号 E21B43/117 主分类号 E21B43/117
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