DRILLBITS
Monthly eNewsletter from the IADC




IADC Geothermal Well Classification Now Available

The IADC Geothermal Well Classification has recently been published. This comprehensive framework represents a significant milestone in standardizing geothermal well classifications across the industry. Developed through extensive collaboration with industry experts, this classification system aims to enhance efficiency, safety, and cross-sector collaboration in geothermal development.

Thank you to everyone involved in developing this vital resource, including the IADC Geothermal Committee workgroup:

  • Scott Farmer, H&P, Author
  • Alexander Heger, OMV
  • Bruce Gatherer, Iceland Drilling Company
  • Daria Ivakhnenko, Black Reiver Consulting
  • Elliot Howard, Fervo Energy
  • Kevin Gray, Black Reiver Consulting
  • Lars Nydahl Jorgensen, IADC
  • Rafael Wagner, OMV
  • Régis Studer, Consultant for Helmerich & Payne
  • Shaun Toralde, Weatherford
  • Steve Nas, WellSpec AP

This classification will serve as a standalone document and will also be the first chapter in a Geothermal Well Drilling Guideline, which is planned to be published in 2026. This guideline, in turn, will be designed to become part of the IADC Drilling Manual.