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岩心钻探中,合理掌握孔内压力,是提高钻速与质量的重要措施。我们使用500型手把式钻机,曾编制了平衡孔底压力计算图。现将该图绘制过程介绍如下:
Core drilling, a reasonable grasp of the hole pressure is an important measure to improve the rate of drilling and quality. We use the 500 hand-held rig, has prepared a balanced bottom hole pressure calculation diagram. The drawing process is now described below: