دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a type of roller cone bit with inserts made of tungsten carbide. Also called tungsten carbide insert bit.

n: The cone bit that be fixed tungsten carbide alloy tooths on the bore of shell.

n: a very hard, and relatively small, cylinder made of tungsten carbide bonded with nickel or cobalt. One end of the insert is rounded or tapered;the other end is truncated (cut oft) and inserted into a bit cone. The round or tapered end contacts the formation and drills it. Several inserts make up the cutters on a tungsten carbide insert bit.

n: see tungsten carbide bit.

n: The cone bit that be fixed tungsten carbide alloy tooths on the bore of shell.