دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: on a diamond bit, the material (usually powdered and fused tungsten carbide) into which the diamonds are set.

n: A kind of diamond bit. The diamond cutting teeth which are arranged in the pattern and founding tungsten carbide are cemented together.

n: The galling metal for glazing diamond bit matrix.

n: see insert.

n: Usually refers to polycrystalline diamond or diamondite. Including manifold shapes, usually cylindrical. Used as the cogging of diamond bit or cone bit.

n pi: see captive customers. core cutter head n: the cutting element of the core barrel assembly. In design it corresponds to one of the three main types of bits: drag bits with blades for cutting soft formations;roller bits with rotating cutters for cutting medium-hard formations;and diamond bits for cutting very hard formations.

n: The side-looking shape of TCI base of diamond bit.

n: Usually there are two methods that reclaiming diamond from old diamond bit: chemistry and electrolysis. The reclaiming prescription of electrolysis is higher than chemistry.

n: a drill bit that has small industrial diamonds embedded in its cutting surface. Cutting is performed by the rotation of the very hard diamonds over the rock surface.

n: A tool for drilling rock that works by scraping industrial grade diamonds against the bottom of the hole. The diamonds are embedded into the metal structure (usually a sintered or powdered carbide base matrix) during the manufacture of the bit. The bit de

n: The external form of the part which is installed with diamond in diamond bit.

n: See diamond bit pump-off force.