Hole Openers:
When different hole diameters are requested and no restriction above are existings
Thereby the openers are available with roller cones or a fixed cutting structure.
Fixed Type Underreamer
The Stiletto from BesteBit is an under reamer, which is capable to be used while drilling. Beste’s Stiletto, is a single body robust design, which has an opening ratio of 25%.
Major Advantages:
- Suitable for all formation and RSS systems
- Simple and reliable operation
- Activation either via ball drop or via controlled pressure drop
- Bidirectional mass balanced cuttring structure