Underwater baseplate installation in advance is needed for semi-submersible platform pre-drilling well.

平台预钻井，需要预先安装水下基盘。

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The precision of stack velocity and interval velocity provided by common NMO correction processing method can't meet the need of predicting the pre-drilling press.

常规动校正处理方法提供的叠加速度及层速度精度不能满足钻前压力预测的需要。

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In order to reduce platform fabrication period and achieve early start-up, both pre-drilling and platform drilling methods are adopted in developing Pinghu oil & gas field.

为了缩短平台建设周期，使之早日投产，平湖油气田采用了预钻井和平台钻井相结合的方式。

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And landowners should seek assurance that drinking water will be tested pre- and post-drilling, with any adverse effects remediated.

FORBES: Shale Leases: Promised Land

Officials, including Mr Gabrielli, argue that since drilling in the pre-salt is now almost certain to yield oil, the rewards for investors in new blocks should reflect this lower exploration risk.

ECONOMIST: Brazil

Even if the costs from drilling are much greater than was recognized pre-spill, that does not make Cap-and-Trade a good policy.

FORBES: A Gulf Spill Reality Check