发明名称 DEVICE FOR FORMATION OF DEPRESSION ON BED
摘要 Device for formation of depression on seam includes string of oil-well tubing lowered to operation string of well, it is equipped with branch pipe and membrane in the lower part, those form implosion chamber together with the string of oil-well tubing. String of oil-well tubing is in addition equipped with lock support of boreholel rod pump and filter with plug in the lower section. Borehole rod pump is equipped in the lower part with hammer. Membrane is destroyed with hammer of borehole rod [ump at lowering it before fit of pump to lock support.
申请公布号 UA48034(U) 申请公布日期 2010.03.10
申请号 UA20090002791U 申请日期 2009.03.25
申请人 &ldquo,UKRNAFTA&rdquo, OPEN JOINT STOCK COMPANY 发明人 KUPER IVAN MYKOLAIOVYCH;ROSTKOVYCH OLEH BOHDANOVYCH
分类号 E21B43/16;E21B43/25 主分类号 E21B43/16
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