On the issue of improving the technical and economic indicators of well wiring in difficult mining and geological conditions

Abstract

In this work, the vulnerability of standard PDC bits was established when conducting wells in difficult mining and geological conditions, in particular, with frequent layering of rocks with different hardness. The use of adaptive TerrAdapt chisels, which automatically change the depth of cutting and the aggressiveness of the chisel, is proposed in Russian deposits with frequently alternating rocks. These bits can be combined with overhead dampers if the dynamic coefficient is in the critical range. This solution will improve the technical and economic performance when drilling wells.