论文部分内容阅读
许多钻粒钻进研究者认为,借助钻粒供给器以连续或小份量投砂方法,向孔底供给钻粒是最为合理的。其优点是,机械钻速增大、减少每米进尺的钻粒消耗量、减少岩心管和
Many drill-in-drilling researchers believe that it is most reasonable to feed drill holes to the bottom of a hole using a continuous or small shot blasting method with a drill feeder. The advantage is that the ROP increases, reducing the consumption of drill particles per meter footage, reducing core pipe and