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An operator in Eastern Romania was drilling in a formation predominantly composed of medium compacted claystone, sandstone intercalations, and poorly consolidated quartz sand.

The operator wanted to increase drilling performance and minimize the number of runs in a 12-¼in. section of its well while producing an excellent borehole.

Baker Hughes, a GE company (BHGE), proposed its latest hybrid bit technology to achieve the operator’s goals and finish the section in one run. The Kymera FSR™ directional hybrid drill bit design provides better tool face control, improves efficiency, and improves borehole quality.

Download the PDF to read the full case study.

Challenges & Results


  • Medium compacted claystone with sandstone intercalations and poorly consolidated quartz sand
  • Minimize drilling time and produce excellent borehole quality


  • Saved 58 drilling hours in one run
  • Drilled four times further than a standard polycrystalline diamond compact (PDC) bit
  • Drilled 84% faster than a standard PDC bit