The Personalized Design Of PDC Bit In Sulige Gas Field

The PDC bit is a new type of drill bit developed along with the development of PDCcomposites. It is famous in the drilling circles because of its high drilling speed, stablerunning, long service life, low probability in the scene of accident, substantial increase in thedrilling economic efficiency, and low cost.According to the rock drill ability and the damage mechanism analysis of direction wellPDC bit, in the aspects of the acorn shape、the resisting hardness interlace、the resisting curlarranging cogging、the cogging angle along with the direction ability and so on, the PDC bitof direction well were designed and optimized; the application technique of PDC bit wasresearched, and the make up of string “quadruple” structure of the PDC bit、the single bentstud、the pony DC and the stabilizer was developed. Make the personalized design of theSulige gas field PDC bit, optimize the PDC bit crown shape and the cutting tooth structureand angle. It improves the working performance of the PDC bit and extend the life of PDCbit.