"The reason BP and other oil companies have to push the limits of technology in exploration and extraction is that they have no other option remaining," says geologist Bitzer.

“英国石油公司等之所以拼命开发勘探钻探技术，是因为他们别无选择。”地质学家比泽尔说。

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Later I became a geologist for an oil company.

后来，我成为一家石油公司的地质学专家。

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I work as a geologist with an oil and gas exploration service company.

我是一家石油天然气勘探公司的地质研究员。

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Last year, Senegal's voters ousted President Abdoulaye Wade, a French-educated democrat, married to a French woman, in favor of Macky Sall, a 51-year old oil geologist who owns a house in Houston and speaks English with a Texas drawl.

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Mr Leggett knows both sides of the street: a geologist by training, he made a fortune as a consultant to the oil industry before he got green religion.

ECONOMIST: Oil and the environment

Golden, then a staff geologist and now head of deepwater exploration for BP, came up with a theory that massive oil deposits lay just beyond the Continental Shelf in the Gulf of Mexico, in waters 300 meters deep or more.

FORBES: Going deep