Debris catcher

Brand: Schlumberger
Product Code: Debris Catcher

Debris catcher

The Schlumberger Debris Catcher is a modular system, which uses reverse circulation to remove debris from the wellbore. Pumping through the tool provides energy to lift debris/fish from the bottom of the hole, object, or obstruction point. The lower end of the tool can be configured in one of three ways depending on the application: vacuum for small debris, fishing for large debris, and washover shoe for packer, plug and milling operations.

Fishing&Sidetracking Services
operations
The Schlumberger Debris Catcher is a modular system, which uses reverse circulation to remove debris from the wellbore. Pumping through the tool provides energy to lift debris/fish from the bottom of the hole, object, or obstruction point. The lower end of the tool can be configured in one of three ways depending on the application, while the same jet section is used for all three applications:
  • One application is a vacuum setup for removing small debris from a wellbore. The lower end of the tool uses a chamber for debris storage. When the job is completed, the tool’s trash cap can be removed and the debris chamber emptied without disassembling the tool.
  • A second application is for fishing large debris from the wellbore. The tool’s debris chamber, on its lower end, is replaced with a rotary shoe which has an internal finger basket to capture fish.
  • An additional application is for packer, plug, and milling operations. A washover shoe is attached to the bottom end of the tool and milling debris is collected inside the tool. When the job is completed, the trash cap can be removed to empty debris from the tool.
Application
  • Vacuum setup for removing small well-bore debris prior to completions
  • Debris removal caused by milling bridge plugs, packers, or both
  • Large fish recovery setup for bit cones and other large debris
Benefit
  • All debris contained within tool
  • Milled cuttings never reach surface
  • Eliminates need for expensive milling fluid
  • Removal of wellbore debris when poor lifting capacity of fluid exists, high equiv- alent circulating density not possible with open perforations, or insufficient pump capacity to provide adequate annular velocities for hole cleaning
Features
  • Interchangeable jets for hydraulic opti-mization downhole
  • Removable trash cap to empty debris at surface
  • High-volume suction flow
  • Large debris capacity

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