Abstract:

To analyze the effects of directional nozzle to flow field at the bottom hole, CAD software in conjunction with Gambit software is used to design PDC drill bit models with directional nozzles. The Fluent flow modelling was then used to perform simulations of at flow the bottom hole. The research results show that the assemblage of the directional nozzles has maximized the hydraulic energy of two jet streams to enhance drill cuttings cleaning and minimize the formation of mud in drill mud PDC that ultimately to improve the mechanical drilling rate