In the paper, a new working layer structure of diamond core drill for solving the problem is introduced which can increase the efficiency and the working life of the drilling tool.
文章介绍了金刚石钻孔工具一种新的工作层结构，该结构可以有效解决钻孔工具排粉散热难问题，提高钻孔工具的工作效率，延长钻孔工具的使用寿命。
Based on this, we may make improvement to prolong the life of screw drill tool and screw pump.
这一观点，有可能使螺杆钻具与螺杆泵的寿命短的现状有所改善。
Taking use of the shock absorber, it can raise the service life for drill bit and drill tool, speed up drilling, get rid of drilling jumping, well protect surface equipments and drilling tools.
所以在钻井作业中采用减震器，对于延长钻头使用寿命，加快钻进速度、克服严重跳钻、保证正常钻井、保护地面设备及钻具是十分可靠的。
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