Failure Analysis of Drilling Tool for Air Drilling

In recent years,air drilling technique has got prompt development and a stage research result.Air drilling technique was adopted oil fields carry out at available formation and notable achievement has been obtained,the ROP of air drilling is 2~4 times than that of mud drilling in same formation.However,with the well number increasing,the drilling tool failure is outstanding gradually,which has safe effect and extends the application of air drilling.In this paper,basing on the analysis about drilling tool failure information and the air drilling technique characteristic,author studied on the drilling tool failure characteristic,and bring forward some view and viewpoint.