In order to improve the service performance of emulsion motor which is the most important component of drill rig, emulsion motor's structure and design method were studied.

为了提高钻机核心部件——乳化液马达——的性能，对乳化液马达的结构、设计方法进行了研究。

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By analyzing the wind disaster of oil rig derrick, the basic reasons of the By analyzing normal work or falls in the service drilling machine derrick in oilfield were analyzed.

从石油井架风灾害分析入手，客观分析了油田在役钻机井架不能正常工作或倾倒的根本原因。

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However, the study in the hydraulic top drive only used in the service machine, poor-boy rig, also there have no research on deep and ultra-deep series of hydraulic top drive unit in China.

然而，对液压顶驱的研究，还停留在修井机、和浅井钻机上。国内目前还没有深井和超深井系列的液压顶驱装置。

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The service companies and drill rig operators are exciting due to the probable magnitude of earnings momentum this year and next.

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Mr Osborne made the announcement at a former oil rig construction yard at Nigg which is set to become a service hub for the energy industry, employing an estimated 2, 000 people by 2015.

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In the oil service sector, North American pricing remains depressed into a declining rig count.

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