Ram - type blowout preventer is important equipment used in oil drilling operation.

闸板防喷器是石油钻井过程中的一种重要设备.

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Logging tool sticking often occurs during drilling operation in Zhongyuan oilfield.

在中原油田,测井阻卡是钻井施工中常遇到的现象之一.

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Chip removal is a factor which influences efficiency and quality of drilling in the drilling operation.

钻削加工中的切屑排除问题直接影响钻孔的效率和质量.

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In the drilling operation, wellbore stability mostly occurs in the mudstone and shale section.

钻井工程中的井壁稳定问题大多发生在泥页岩井段.

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The fabrication of 30 inch conductor tubes for offshore drilling operation is described in this paper.

论述海洋石油勘探作业中使用的30寸隔水套管的试制过程.

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Mao east area frequently takes place sloughing hole , pipe - stuck, lost circulation in drilling operation.

鄚东地区钻井过程中经常发生垮塌 、 卡钻 、 井漏等复杂事故.

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It can be applied to leakage zone during the well measurement and the ultra - deep drilling operation.

可用于深井、超深井钻井作业中漏失层位置的测定.

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