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
Assembly Part No. Actual OD Range
284-2125-XXX-RX 2.125" 6.190"
284-2875-XXX-RX 2.875" 8.600"
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"
