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井下套管开窗堆焊碳化钨铣锥侧钻最关键的工序是在井下套管上开窗修窗。现有的开窗铣锥是在铣锥体外表面上沿轴向加工多道槽，并将硬质合金块焊装在槽中。在铣锥体上开槽是不容易的，在用于为Ф１７７．ｓｍｍ套管开窗的长铣锥体上开槽尤其困难；在槽中焊装硬质合金块的工...
Underground casing window welding tungsten carbide milling cone sidetracking the most critical process is to open the window on the casing casing repair window. The existing window milling cone is machined in the axial direction on the outer surface of the milling cone multiple grooves, and the cemented carbide block welded in the groove. Slotting in a milling cone is not easy and is used for Ф177. smm casing cut open the long cone milling cone is particularly difficult; in the groove welding cemented carbide block ...