By using data of surface geochemical exploration, it is quite accurate to evaluate the conditions of saving oil gas fields especially for those leaking ones owing to be destroyed in last period.

利用地表油气化探资料可以较准确地判断油气藏保存条件的好坏，尤其对于已存在过又遭后期破坏的泄漏油气藏。

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Russiahas been similarly busy working the oil and gas fields of western Siberia andhas recently started shipping oil from an offshore terminal in the Pechora Seato Murmansk.

后者则忙于开采西伯利亚西部的油田和气田，最近开始将伯朝拉海开采的石油运往摩尔曼斯克。

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It is also selling some mature oil and gas fields in the North Sea and Nigeria.

该公司还将出售在北海和尼日利亚的部分成熟油气田。

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At stake were lucrative new oil and gas fields -- by some estimates ten billion tons of oil -- on the Arctic sea floor.

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Mitchell's provides services in the Bakken shale oil and gas fields of North Dakota and Montana.

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The result: 3 million net acres in 13 unconventional oil and gas fields from coast to coast.

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