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Core Barrels

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The core barrel is used to collect core from drilling operations.

Снаряд керноотборный

  • To effectively retain core, the core catcher is produced from spring steel and can be coated with industrial diamonds at the customer’s request
  • The valve seat is made from high-strength steel to prevent washouts and is lapped to the ball
  • To collect core from loose rocks there is a lever core catcher with increased overlap area

  • The 172-mm core barrels are designed with a rugged double-shoulder connection to thread the body parts and rule out failures during drilling with PDC bits. The core tubes have a strengthened taper thread that extends thread life and minimizes the risk of breaking

  • Core collection during rotary drilling or drilling with positive displacement motors

  • One-, two-, and three-section design

  • To increase the amount of core retrieved and reduce loads applied to the bottom of a drill string, core barrels can be fitted with spiral stabilizers. The stabilizer size is selected by agreement with the customer. Each of the stabilizer blades is reinforced with three-row inserts in the place they touch the wellbore, or is hardfaced with tungsten-carbide material  

  • Reinforced surfaces of calibrator blades

  • Core collection during rotary drilling or drilling with positive displacement motors

  • One-, two-, and three-section design

  • To increase the amount of core retrieved and reduce loads applied to the bottom of a drill string, core barrels can be fitted with spiral stabilizers. The stabilizer size is selected by agreement with the customer. Each of the stabilizer blades is reinforced with three-row inserts in the place they touch the wellbore, or is hardfaced with tungsten-carbide material  

  • Reinforced surfaces of calibrator blades

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