HIGH EXPANSION UNDER-REAMER

Typically deployed in operations where there is a need to remove compacted debris in well-bores with a large difference in internal diameter between the tubing and the casing or liner.

The Dual Stage High Expansion Under-Reamer features two sets of cutting blades which are activated through increased flow rate. In order to minimise torque on the reaming blades the tool can be configured with a mill below to remove initial debri and create a pilot hole, the first set of flow activated blades act as an intermediate reamer the second set of blades open to full bore to remove the remaining debris.

TOOL APPLICATIONS:

  • Removing scales & stubborn well-bore deposits and hole enlargement in wells with small diameter restrictions

DESIGN FEATURES & BENEFITS:

  • Blades fully retained within tool OD
  • Carbide dressed blades
  • Dual Stage to minimise loading on blades
  • Flo-activated
  • Optional blade designs available
  • Simple, robust design ensuring ease of operation for the end user
  • Selected components QPQ treated
  • Hexagonal flats for safe make-up & break out
  • Connections to suit customer requirements

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TECHNICAL DATA

Assembly Part No.Actual ODRange
284-2125-XXX-RX2.125"6.190"
284-2875-XXX-RX2.875"8.600"

XXX - Last 3 digits of part number denotes connection type - Please refer to the connection code data sheet. For additional sizes or further information please contact sales.

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