A kind of high-efficiency milling shoe research

on the basis of summarizing the experience of using conventional milling shoes, comprehensive optimization of traditional milling shoe has been made with respect to material choosing of matrix and cutter teeth, teeth distribution, size of milling shoes and scraps groove and number etc. and a kind of high-efficiency milling shoes was designed. The field application in Well Longgang 001-3 shows that the drilling speed、drilling depth and safety of optimized milling shoes have been greatly enhanced, which realize high-efficiency milling.