Annular Circulating Sub

Features
Benefits
  • • Allows circulation above a tool string from the tubing into the annulus
    • Equalizes pressure across the tool string while running in hole
    • Once ball seat is sheared communication between tubing and annulus is isolated in both directions

  • • Field redressable
    • Short make up length
    • Simple drop ball design to activate

Features

• Allows circulation above a tool string from the tubing into the annulus
• Equalizes pressure across the tool string while running in hole
• Once ball seat is sheared communication between tubing and annulus is isolated in both directions

Benefits

• Field redressable
• Short make up length
• Simple drop ball design to activate

The Hunting Annular circulation sub is run above a BHA and creates a flow path from the tubing into the annulus above so that fluid can be circulated above the tool string while running in hole.

Once a ball is dropped on seat and pressure applied to shear out the ball seat a sleeve moves down, flow to the annulus is isolated and pressure can be applied down the tubing to the BHA.

• Ideally suited for the applications below;

• Perforating operations utilizing pressure activated firing heads

• Hydraulic setting tool deployment

• Inflatable packer deployment

• Milling operations

Product Image 1

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