Design of impregnated diamond drill bit and critical drilling parameters

Abstract:

Diamond drilling is an important method of drilling and used widely in various countries. Diamond drill bit is a main tool for fragmentating rock in this method. In some countries in drilling of medium-strength and above-strength rocks impregnated bits are used usually. In designing of the impregnated drill bits many rock character factors are considered and good results have been obtained. That should attract attention of Chinese researchers. In diamond drilling a suggestion of using critical drilling parameters has been put forward. The critical drilling parameters has important significance for normal drilling， safe production and preventing accidents. Combining the good drill bit with the good drilling parameters can increase drilling results substantially and make our more contributions to the performance economic construction of China.