eccentric drilling bit

eccentric drilling bit
эксцентричное буровое долото (для расширения ствола скважины)

Большой англо-русский и русско-английский словарь. 2001.

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  • Mud motor — (or Drilling Motor) refers to a Progressive Cavity Positive Displacement Pump placed in the Drill string to provide additional power to the bit while drilling. The PCPD Pump uses Drilling Fluid (commonly referred to as Drilling Mud, or just Mud)… …   Wikipedia

  • Drill string — A drill string on a drilling rig is a column, or string, of drill pipe that transmits drilling fluid (via the mud pumps) and torque (via the kelly drive or top drive) to the drill bit. The term is loosely applied as the assembled collection of… …   Wikipedia

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  • Lathe — A lathe (pronEng|ˈleɪð) is a machine tool which spins a block of material to perform various operations such as cutting, sanding, knurling, drilling, or deformation with tools that are applied to the workpiece to create an object which has… …   Wikipedia

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  • Milling machine — For the machine used in road construction, see Asphalt milling machine. Not to be confused with mill (grinding). Example of a bridge type CNC vertical milling center …   Wikipedia

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  • Trepanning — Trepanation redirects here. For other uses, see Trepanation (disambiguation). A detail from The Extraction of the Stone of Madness , a painting by Hieronymus Bosch depicting trepanation (c.1488 1516) Trepanning, also known as trephination,… …   Wikipedia

  • Trepanation — (also known as trepanning, trephination, trephining or burr hole) is surgery in which a hole is drilled or scraped into the Human skull, thus exposing the dura mater in order to treat health problems related to intracranial diseases, though in… …   Wikipedia


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