论文部分内容阅读
井下动力钻具是指能把钻井液的能量转化为钻井破岩动力的井底钻具,由于井下动力钻具(井底马达)具有高转速,可以显著提高机械钻速,特别是与pdc钻头配合使用将大大地提高钻井速度。此外,由于钻杆不动,可以减少动力消耗,减轻钻具及套管的磨损和破坏;用井下马达钻定向井和丛式井时,能够有效地控制井眼轨迹。正是由于以上几个特性,这种技术被广泛的应用到实际的工作中,在实际中得到了不错的经济效益和社会效益。
Downhole power drill refers to the drilling fluid can transform the energy into drilling rock breaking bottom hole drilling tools, the downhole power drill (bottom hole motor) with high speed, can significantly improve the ROP, especially with the PDC bit With the use of will greatly enhance the drilling speed. In addition, because the drill rod does not move, the power consumption can be reduced, and the wear and damage of the drilling tools and the casing can be reduced. When the downhole motor drills the directional well and the cluster well, the well trajectory can be controlled effectively. It is precisely because of the above several characteristics, this technology has been widely applied to the actual work, in fact, have been a good economic and social benefits.