It will cut down the drilling cycle, cutdown the cost of drilling and improve the quality of bit trajectory.

因此可以缩短钻井周期，降低钻井成本，提高井身质量。

youdao

But the cost of drilling is high, and the electric or shallow seismic explorations are limited by layer media and have lower precision.

钻探成本高，浅震和电法都存在有层状介质的局限性及勘探精度的问题。

youdao

In the process of drilling, lost circulation can often result in serious drilling accidents, delay the period of drilling and increase the cost of drilling.

钻进过程中，井下泥浆的漏失往往导致严重的钻井事故，从而延长钻井周期，增加钻井成本。

youdao

"The Obama moratorium on deep water oil drilling has already cost tens of thousands of jobs."

VOA: standard.2010.07.31

Tax credits significantly cut the cost of drilling the four wells, each 500 feet deep one instance where more is definitely more.

WSJ: The Greening of a Midcentury Classic

Whether or not the administration puts a temporary stop to deep-water drilling, we can only imagine what effect the added cost of higher premiums for drilling rig insurance and more sophisticated safety equipment is going to be in the months and years ahead.

FORBES: Investing For A Peak-Oil Future

The President, while understanding of the economic cost of pausing those ongoing drilling -- ongoing drilling permits -- while understanding of that, believes that we ought to have a sense of what happened and ensure that the regulatory structure that we have in place going forward ensures their protection.

WHITEHOUSE: Press Briefing