Utah FORGE: Reports on Northwestern Nevada Well Doublet Drilling and Testing by Fervo Energy

Description

These reports review Fervo Energy's construction of a commercial enhanced geothermal system (EGS). Fervo has qualified full functionality of the system through production testing at commercially relevant operating conditions. The project site is located in a nearfield setting adjacent to an operating geothermal power station in north-central Nevada and is designed to deliver an uplift in high-temperature geothermal flow rates to increase the power capacity at the facility. The project involved drilling a first-of-a-kind EGS horizontal doublet well system consisting of an injection and production well pair within a high-temperature hard-rock geothermal formation. The lithology of the target reservoir is characterized as a mixed metasedimentary and igneous formation, comprised of phyllite, quartzite, diorite, and granodiorite, representative of the geology across the most prospective geothermal areas throughout the western US. This work included a 16-stage plug-and-perforate stimulation treatment which was the first of its kind in a high-temperature mixed metasedimentary and granitic formation in a fully horizontal doublet geothermal well.

Resources

Name Format Description Link
21 This GDR submission characterizes the initial project objectives, plans, and approaches that were outlined prior to reservoir stimulation. https://gdr.openei.org/submissions/1485
57 Included are a research article and case study covering the completed construction of Fervo's EGS project. The adoption of unconventional technologies, such as horizontal drilling, plug-and-perf stimulation, and reservoir diagnostics with distributed fiber optic sensing (DFOS) are highlighted. https://gdr.openei.org/files/1530/Fervo_reports.zip

Tags

  • fracking
  • report
  • assessment
  • blue-mountain
  • horizontal-doublet
  • feasibility
  • egs
  • cross-well-strain
  • utah-forge
  • plug-and-perf
  • horizontal-drilling
  • fracing
  • enhanced-geothermal-systems
  • nevada-egs
  • distributed-fiber-optic-sensing
  • doublet-well-system
  • fervo-energy
  • dfos
  • plug-and-perforation
  • well-stimulation
  • nevada
  • geothermal
  • energy
  • fiber-optic-sensing

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