Drilling fluids is one of the main factors influencing the yield of water well.

钻井冲洗液是影响水井出水量的主要因素之一。

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For PETROTECH Drilling Fluids Service 'mud system, the toxicity data (EC50 values) is as follow.

对于中海石油技术服务泥浆公司的泥浆体系，请看以下的毒性数据(EC50值)。

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Let the Drilling Supervisor sign the "Drilling Fluids Service Sheet", and take it back to the Base Manager.

请钻井监督填“泥浆服务签单”，并带回给基地经理。

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The BP company pumped heavy drilling fluids,known as mud, into the top of its damaged well in the Gulf of Mexico.

VOA: special.2010.08.07

One such stock is Newpark Resources ( NR), a Texas-based provider of drilling fluids, temporary worksites and access roads for oil and gas drillers.

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Faulty blowout preventers, errors in the management of drilling fluids, a sub-par cementing job, questionable well design, haste it was a confluence of these factors that led to the blowout.

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What is required is to make sure that the drilling fluids and frack wastewater do not come in contact with the fresh water aquifers when the wells are being drilled, completed, or produced.

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