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.

Download PDF

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
Assembly Part No. Actual OD Range
284-2125-XXX-RX 2.125" 6.190"
284-2875-XXX-RX 2.875" 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.

Ask our team a question?

Contact us

ASK OUR TEAM A QUESTION?

Our highly skilled engineering and technical sales staff are on hand to offer customisable, fast-response solutions for your well servicing needs.

Contact us