It analysed the feasibility and the limitation of applying mining rig and water well rig to slim hole drilling in shallow gas bearing reservoirs.

分析了矿业钻机与水井钻机用于浅层天然气小眼钻井的可行性及局限性。

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BP is the British-based energy company that operated the well and leased the Deepwater Horizon from the rig's owner,Transocean.

VOA: special.2011.04.23

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

Overall, the Series 7 Gamer is a respectable, well-designed rig with only a hint of the stereotypically hardcore.

ENGADGET: Samsung Series 7 Gamer review: the company's first gaming laptop makes its way to the US

And if so, what about the other companies that were involved in some way that may have an interest in the well or the rig -- are they liable at all?

WHITEHOUSE: Press Briefing on BP Oil Spill