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钻探电机为一用于陆地和海洋钻探工程的特殊电机。采用钻探电机进行钻井,具有高效、优质、低耗及低成本,且有易实现钻井工艺机械化和自动化等优点,是有发展前途的。一、钻探电机机械密封的工作条件及技术要求1.机械密封长期处于有大量泥沙、岩粉和化学试剂的泥浆中,该泥浆又以一定的速度冲刷周围,其静液柱压力随孔深不断增加,在0～5000米钻井,泥浆比重为1.2时,其压力在0～600公斤/厘米~2的范围内变化,当遇高压地层时则压力突然增大;遇漏失地
Drilling motor is a special motor used on land and sea drilling. Drilling motor drilling, with high efficiency, high quality, low consumption and low cost, and easy to realize drilling mechanization and automation advantages, there is a promising future. First, the drilling mechanical seal mechanical conditions and technical requirements 1. Mechanical seal long-term in a large amount of sediment, rock powder and chemical reagents in the mud, the mud and a certain rate of erosion around the static pressure of the hydrostatic column with the hole depth The pressure in 0 ~ 600 kg / cm ~ 2 range of change, in the case of high pressure strata when the pressure suddenly increases; in the case of lost ground