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An operator in Southeastern Turkey was drilling in a well-known, challenging field of interbedded anhydrite, limestone, chert, sandstone, dolomite, shale, and claystone. The operator’s main objective was to drill efficiently to increase performance through the chert and the softer layers.

This type of interbedded formation is perfect for the Kymera™ hybrid drill bit, from Baker Hughes, a GE company (BHGE), which combines PDC and roller cone bit technology or smoother drilling, remarkable torque management, and precise steerability.

Download the PDF to read the full case study.

Challenges & Results
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Challenges

  • Highly interbedded formation of anhydrite, limestone with abundant chert
  • Reduce number of trips and maximize ROP

Results

  • Saved a total of $160,000 USD
  • Maintained an average overall ROP of 9.2 ft/hr; approximately 75% higher than offset wells
  • Reduced drilling time by 144 hours by reaching TD in one run
  • Maintained effectiveness of bearings even after 1.1 million revolutions
  • Accomplished a single run of 1,660 ft in 182 hours
  • Replaced three tungsten carbide insert and PDC bits
  • Saved more than $108 USD per foot drilled