Petroleum engineers devise ways to identify and extract underground reservoirs of oil, natural gas, steam, and hot water, as well as using the empty reservoirs for the safe disposal of waste.

石油工程师想方设法从地下储存库中提取石油，天然气，蒸汽，热水并用储存库安全处理废物。

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A well, often a depleted oil or gas well, into which waste fluids can be injected for safe disposal.

通常为枯竭的油井或气井，为了安全地处置废液，将废液注入其中。

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The invention relates to an oil field waste disposal method, in particular to an oil field oil sludge processing method which is simple, economic, practical and environment-protection;

本发明涉及一种油田废弃物处理方法，特别涉及一种油田污油泥处理方法。

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The Mountain Pass mine, which had been bought in 1977 by Unocal, the oil company, began running into all kinds of regulatory problems concerning waste disposal, just as it was losing market share to cheaper Chinese competitors.

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