One jet perforator charge can creat two stream of jets in the opposite directions which can drill a pair of perforations face to face in the radial of the borehole.

 
  • 其聚能藥包能產(chǎn)生兩股方向相反的錐形金屬射流,在炮孔壁上形成兩個(gè)相對的“點(diǎn)狀”穿孔。
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