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
TECHNICAL DATA
| Assembly Part No. | Actual OD | Range |
| 284-1687-XXX-RX | 1.687" | 4.95" |
| 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.
