Perforating in a dirty fluid may result in significant permeability damage that is difficult to treat and remove.

在不洁的射孔液中进行射孔会造成难以处理和去除的显著的渗透率损害。

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A perforating charge designed to provide a long perforation tunnel, such as may be required to bypass any near-wellbore damage.

为提供旁通近井地带损害等所需的长射孔孔道而设计的射孔弹。

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