Low carbon solutions

Specific Challenge

Provide equipment to withstand high temperatures and pressure post-fracture

Region Region

United States



  • Provide equipment to withstand high temperatures and pressure post-stimulation operations
  • Provide cement solutions to meet high-temperature tool operations and contingency planning


  • VersaFlex® XSL-ZE ELH system 
  • Lead slurry with Thermavis additives


  • Deployed liner system to depth 
  • Designed and pumped cement slurry with adequate safety factors
  • ELH system provided hydraulically energized seal on set to fully isolate liner top


Halliburton worked closely with an operator to understand the challenges associated with enhanced geothermal wellbore conditions. Through iterative design and evaluation, Halliburton delivered a completion solution for the first greenfield development in the US. The completed wellbores enabled the operator to harness geothermal energy from a consistent heat source. 

The successful completion of the wellbore construction phase post-drilling involved several key steps:

  • Liner deployment: After drilling the injector wellbore, the first completion phase focused on liner deployment
  • Cementing for zonal isolation: The second completion phase included cementing the wellbore to achieve zonal isolation across the liner
  • Liner hanger installation: The final phase consisted of setting the liner hanger. This hydraulically energized mechanical barrier and seal were positioned at the top of the liner hanger

These steps were executed in both the injector and producer wellbores. The series of horizontal wells are installed alternating between injectors and producers.

After the wellbore construction phase, perforating and stimulation were performed at treatment pressures of more than 10,000 psi, which allowed the enhanced geothermal application to provide sustainable energy to a power plant. Additional wellbores are now planned to fully harness the formation’s potential and keep the power plant running using geothermal energy.


VersaFlex® XSL-ZE expandable liner hanger (ELH) with a lower polished bore receptacle (PBR) was selected for the wellbore configuration. Equipment was set to run with a VersaFlex HWE ELH casing wiper plug, VersaFlex ELH landing collar, and Halliburton float collar and shoe with a tapered offset down jet. This equipment was deployed on a VersaFlex ELH running tool capable of withstanding washing and reaming operations. Halliburton provided a redesigned lead slurry with Thermavis additive to provide viscosity and create a stable slurry that did not set up while pumping, but rather developed strength under static conditions.

geothermal well
First-of-its-kind, large-scale geothermal application in the US; lower well drilled and completed first followed by second well

Rating for VersaFlex XSL-ZE ELH


Completed wellbores


Enhanced geothermal development in US


Halliburton delivered a completion solution for the first enhanced geothermal commercial project to deliver 24/7 non-intermittent geothermal energy from a consistent heat source. Pre-job engineering and collaboration allowed the successful execution of a well design that enables a plug-and-perf stimulation strategy to create the engineered reservoir between the injector and producer wellbores.

Building on the success of the initial wells, additional wells have been drilled and completed by Halliburton to support the operator’s goal of delivering  sustainable power for the future.

Related products

Liner Hangers

Liner Hangers

Halliburton liner hanger portfolio includes expandable and conventional options for mature, unconventional, deepwater, and geothermal applications.

Geothermal energy liner hanger solutions

Geothermal energy liner hanger solutions

Tiered solutions for geothermal well construction



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