泵吸反循环钻进,具有钻进效率高,功率消耗低等特点,因此在大口径浅孔钻探中应用日趋普遍。在钻进过程中,如何合理的选择钻杆内泥浆的上返速度,它是决定钻速高低以及是否顺利成井的关键,有待于在今后生产和试验中总结、研究,本文提出一些粗浅认识,供设计、使用者参考。 Pumping reverse circulation drilling, drilling with high efficiency, low power consumption characteristics, so the application of large-diameter shallow hole drilling is increasingly common. It is the key to decide whether the drilling rate is high or not and whether it is going to make a well smoothly. It needs to be concluded and researched in the future production and test. This paper puts forward some superficial understanding, For design, user reference.