- High unconfined compressive strength
- Interbedded formation
- High dog leg severity
- Inconsistent build rates
- Increased ROP by 41%
- Maintained steerability
A customer drilling the Montney formation required large dog legs of 14° and was experiencing poor toolface control resulting in inconsistent build rates when drilling with competitor polycrystalline diamond compact (PDC) bits. The Baker Hughes Drill Bit team in Canada recommended a KymeraTM hybrid drill bit to reduce the drilling dysfunctions and achieve a consistent build rate through a section consisting of siltstone, shale and fine-grained sandstone. Although this early generation Kymera drill bit demonstrated improved toolface control, the Baker Hughes team was confident that additional performance gains were achievable with an optimized design.
Download the PDF to read the full case study.