Open AccessDevelopment and Testing of a Jet Assisted Polycrystalline Diamond Drilling Bit. Phase II Development Efforts
Author(s) -
David Pixton
Publication year - 1999
Language(s) - English
Resource type - Reports
DOI - 10.2172/755976
Subject(s) - drilling , bit (key) , drill , rate of penetration , drill bit , diamond , mechanical engineering , jet (fluid) , drag , engineering , materials science , computer science , petroleum engineering , marine engineering , aerospace engineering , composite material , computer security
Phase II efforts to develop a jet-assisted rotary-percussion drill bit are discussed. Key developments under this contract include: (1) a design for a more robust polycrystalline diamond drag cutter; (2) a new drilling mechanism which improves penetration and life of cutters; and (3) a means of creating a high-pressure mud jet inside of a percussion drill bit. Field tests of the new drill bit and the new robust cutter are forthcoming