It takes up to four barrels of water to generate one barrel of tar-sands crude, and 20% of Canada's natural gas (a clean fuel) is used to produce oil (a dirty one).

每采集一桶焦油沙原油需要耗费四桶水。加拿大20% 的天然气（清洁燃料） 用来提炼石油（脏的原油） 。

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Heavy fuel oils that come from residual oils of crude oil refining, are used as fuels of the steam boiler, furnace and gas turbine.

重质燃料油一般是原油经过炼制所产生的渣油经调合而成的，主要用作蒸汽锅炉、加热炉以及燃汽轮机的燃料。

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The innovation using the natural gas to air as fuel to provide the heater in place of middle pressure dry gas in one crude oil stabilization plant is introduced in this paper.

文章介绍了某原油稳定装置利用放空天然气代替处理后的中压干气作为加热炉燃气的改造情况。

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Natural gas is a cleaner fuel than coal and crude oil and is becoming increasingly important with governments across the world encouraging the production and use of natural gas over coal and crude oil for energy generation.

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This is because of a relatively small contribution of natural gas to ConocoPhillips? stock value compared to other petroleum products produced by ConocoPhillips such as crude oil, natural gas liquids, gasoline, distillates, fuel oil, and a variety of others.

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Natural gas is considered to be a bridge fuel between crude oil and the clean hydrogen-based energy sources of the future.

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