After analyzing new and old standards of rigs and detailed parameters, it is proved that improvement on rig drilling ability with middle or deep depth is feasible;

通过对钻机新、旧标准，以及具体参数的分析； 证实了提高中深井钻机钻深能力是可行的。

youdao

BP PLC ChiefExecutive Tony Hayward has come under mounting pressure over the spill, causedafter a drilling rig BP was leasing, the Deepwater Horizon, caught fire andsank last month.

自上个月英国石油公司“深海地平线”钻油台爆炸起火沉没后，公司行政总裁托尼·海沃德因此次泄露所承担的压力越来越大。

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Where once the ill-fated Deepwater Horizon drilling rig floated in solitary splendour, there are now two similar rigs, along with the Discoverer Enterprise, a drilling ship;

遭遇厄运的深水地平线号钻探平台曾经赫然漂泊的那片海上，如今漂浮着一只庞大的混编队伍：两个类似的钻井平台和一艘钻井船--发现者企业号；

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On April twentieth an oil drilling rig, the Deepwater Horizon, exploded and sank about eighty kilometers from the Louisiana coast.

VOA: special.2010.05.04

But he said it was too early to say what caused the April twentieth explosion on the Deepwater Horizon drilling rig.

VOA: special.2010.06.19

The Deepwater Horizon, an oil and gas drilling rig, exploded on April twentieth.

VOA: special.2010.06.04

Other than natural gas, Chesapeake also operates in oil production, oil and natural gas marketing, natural gas compression, rig drilling and trucking, which form the rest 25% of the stock price.

FORBES: Chesapeake Looks To Lower Debt, Ride Growth To $35

Development Driller II, the rig drilling a second relief well as a redundancy measure, is completing preparations for its blowout preventer to be used on the Macondo well, while the Development Driller III -- the rig drilling the relief well expected to intercept the main well -- is standing by until that's done.

CNN: STORY HIGHLIGHTS

It was -- this particular rig started drilling in this location in January of this year.

WHITEHOUSE: Press Briefing on Oil Spill in Gulf of Mexico