Longer and heavier BHAs: the BHAs being conveyed - especially those configured with perforating guns - are longer and heavier than the more typical reservoir surveillance production logging tools.

与传统的油藏监测生产测井工具相比，使用的BHA(尤其是带有射孔枪的BHA)将更长更重。

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There have been failed perforating guns, stuck tools, and other delays, some caused by the well itself as it kept trying to kick and kick and kick.

FORBES: McMoRan's Moffett And Partners Refuse to Give Up at Davy Jones 1