Formation burst pressure is one of the key parameters for the thermal production of heavy oil, drilling engineering and downhole operation.

地层破裂压力是钻井工程、井下作业及稠油油藏热力开采的重要参数。

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The brake rims on drilling rig drawworks are subjected to heat load during string lowering and will end in thermal fatigue failure.

石油钻机绞车刹车鼓在下钻过程中，由于热负荷的作用会发生热疲劳破坏。

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The description covers full-hydraulic core drilling machines, portable drills, geo-thermal drills, offshore and beach sampling equipment, all-casing drilling rig, etc.

介绍的主要设备有全液压岩心钻机系列、轻便设备系列、地源热泵钻机、浅海及滩涂取样钻机、全套管钻机等。

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The most promising initiatives near term, he thinks, include solar thermal, high-altitude wind power and deep drilling to tap geothermal power.

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