Centralizers, calibrators, subs
Centralizers are used as components of bottom hole drill string assembly when drilling oil and gas wells.
The centralizers are used for:
- holding vertical borehole section when drilling vertical wells;
- steering parameters of well deviation and its stabilization.
Meeting customer's requirements different centralizer versions are available:
- 98,4 - 311 mm diameter;
- straight blades;
- spiral blades;
- different lengths;
- different threads as per GOST P50864-96 or API Specs 7.
The centralizer housings are produced out of steel 40XH2MA. Operating surfaces of the blades and lead-in chamfers are reinforced with teeth made out of hard alloy VK6 or VK8.