Referring to the condition that occurs when the kelly is all the way down, so drilling progress cannot continue.

方入是指发生了这样的情况，即方钻杆全部进入到补心内，导致钻井进程不能够继续下去。

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Meanwhile, put a double team and equipment, 24 hours of continuous construction, drilling two ways to speed up the construction progress.

同时，投入双倍的队伍和设备，24小时连续施工，采取两头钻进的办法加快施工进度。

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Remarkable progress had been made in the technique of drilling Wells long before the earliest oil-wells.

远在最早的油井之前，钻井技术就已经取得了显著的进步。

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Prosecutors assert the employees may have provided false information to regulators about the risks associated with the well while drilling was in progress, the Journal noted.

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Progress in horizontal drilling, which allows more oil to be produced from fewer wells, is another boon for the Arctic.

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Progress has been slow and Japan has accused China of drilling for gas in violation of the deal.

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