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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

Различные варианты исполнения

Different design styles and configurations for specific customer’s needs

Снижение нагрузки на элементы

Reduced load on the body parts of the tool and drill string bottom

Повышенная износоустойчивость

Enhanced wear-resistance of centralizers and calibrators


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