A fresh core is sealed as soon as possible after retrieval from the well to minimize the loss of fluids and exposure to air.

新鲜岩心由井中取出后立即密封以减小流体损失和暴露空气的时间。

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Marine riser is a steel or flexible pipe which transfer well fluids from the seabed to the surface.

采油管就是从海底输送油气至海面的钢管或软管。

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The technique involves pumping fluids into a well to recover natural gas from shale rock.

BBC: China firms to invest $2bn exploring shale gas reserves