在有关粘合问题上的一项早期的决定——油井下只有一根管道，使得天然气和石油抽上变得更容易——附有条件是粘合的时候需要额外小心。

With the centralisers, an earlier decision—to run only one pipe down the well, making it easier for gas and oil to get up—had been taken with the proviso that extra care would be needed in cementing.

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弗拉纳根说，另外卡特里娜飓风还影响到石油和天然气工人的生活，现在还不清楚有多少人可以参与修复工作。

What's more, Mr. Flanagan says Hurricane Katrina has also affected oil and gas industry workers. So, it's unclear how many are available to help with repairs.

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这些图像重新排列了2004年根据官方数据列出的20个最大天然气燃除国的名次。

The imagery has reshuffled who are the top 20 gas-flaring nations, compared to previous official figures from 2004.

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