Deep drilling poses particular problems of high pressure and temperature.

深海钻探带来高压力和温度的特殊问题.

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In deep drilling process, casing wear is the problem that cannot be ignored.

在深井、超深井钻井过程中, 套管磨损有可能导致套管封隔失效和油气井的早期报废.

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Suggestions on the application of disc brakes on deep and ultra - deep drilling rigs are put forward.

对在深井和越深井钻机上推广盘式刹车提出了若干建议.

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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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