Rotari sondaj matkaplarinin optimum seçimi ve işletilmesi için yeni bir yöntem

This paper reviews current state to the art to rotary drill bit selection and operation and also introduce a new method for optimizing this process. The research done so far are examined those are the rock properties affecting the drillability, the full scale laboratory studies, the observation of field practice and the regression analysis of this data to develop penetration rate estimation models. In the new method introduced at this paper; the physical and mechanical parameters of rock samples are firstly determined. Then, systematic drilling tests are carried out in Horizontal Drill Rig using real bits recommended by different manufacturers according to rock conditions. The relation between the penetration rate and the bit design and operational parameters are investigated to find the most suitable bit. In the light of data produced the detailed analysis are carried out to define the specific penetration rate, specific wear rate and specific energy consumption for different bits.