Downhole Drill Bit
作者： John D. Bailey , David R. Hall , Ronald B. Crockett
DOI:
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摘要: A downhole cutting tool may include a body; plurality of blades extending from the first blade comprising at least one pointed element thereon, polycrystalline diamond material on carbide substrate, away substrate to terminate in substantially geometry opposite substrate; second shear element, forming planar surface wherein, when and are superimposed each other, central axis is offset element.
google.ch 参考文章(421)
Michael Lee O'neill, Apparatus for holding a cutting bit ,(1997)
Hideki Moriguchi, Nobuyuki Mori, Keiichi Tsuda, Insert chip of oil-drilling tricone bit, manufacturing method thereof and oil-drilling tricone bit ,(2002)
Jean Sionnet, Paul A. Renard, Tool for a mine working machine comprising a diamond-charged abrasive component ,(1989)
Harlan U. Anderson, William J. Brady, Method and composition for producing hard surface carbide insert tools ,(1985)
Phillip Sollami, Streamlining bit assemblies for road milling, mining and trenching equipment ,(2006)
Kenneth M Jensen, Stephen R Jurewicz, Polycrystalline diamond cutter with integral carbide/diamond transition layer ,(1997)
Stephen C. Stehney, Tool holder block and sleeve retained therein by interference fit ,(2006)
James L Wheeler, Robin W Kapp, Bits for use in drilling with casting and method of making the same ,(2004)
John R. Planchak, Wayne A. Demo, Braze blocking insert for liquid phase brazing operation ,(1997)
Wilfried Maier, Otto Schetina, Herwig Wrulich, Alfred Zitz, Bit holder equipped with a spraying device ,(1983)