Hole Enlargement Tools
Downhole ToolsUnder-reamers and hole-opening assemblies
3 Key Features
Downhole Tools
Hole Enlargement Tools
Under-reamers and hole-opening tools used to enlarge the wellbore below restrictions or to target diameter ahead of casing or liner installation.
Applications
Hole opening ahead of casingUnder-reaming below restrictions
Benefits
- Suitable for all formations and RSS systems
- Simple and reliable operation
- Activation either via ball drop or controlled pressure drop
- Bidirectional, mass-balanced cutting structure
Key Features
- 1Mechanical and hydraulically actuated options
- 2Multiple arm / blade configurations
- 3Sized to common casing programmes
Types & Variants
Hole Openers
For jobs requiring different hole diameters with no restrictions above; available with roller cones or a fixed cutting structure.
BesteBit Stiletto (Fixed Type Underreamer)
A single-body, robust design under-reamer capable of use while drilling, with an opening ratio of 25%.
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