Tool introduction

The combined unlimited switch reaming tool can be activated or closed downhole at any time, as required, to provide customers with strong support for casing and cementing operations.

The track-type blade activation system uses switching between the two sets of rails to achieve real-time control of the tool on the ground with displacement changes. The tool can be used in a wide range of well conditions requiring stable reaming while drilling. The integrated design improves the tool's ability to withstand axial load and torque while reducing vibration during reaming operations.

Advantages and characteristics

• Unlimited switching is possible regardless of the size of the well inclination.

• Both reaming mode and non-reaming mode can be circulated at maximum displacement.

• Fast activation and recovery of the blade.

• Optimized fluid channels allow for full wellbore cleaning.

• The tool is centered in the hole.

Tool parameter