Sub-Surface Technologies (SST) Investigating and Optimizing Geological Storage and Resource Extraction

Whether for maximizing resource extraction or commodity storage, understanding geologic systems is a critical skill set. Maximizing geologic storage capacity is critical to enable the integration of renewables, contribute to grid stability, and make creation of a hydrogen economy possible. More research is needed before safe and responsible large-scale storage of hydrogen can be accomplished below ground. In addition, CO2 can also be permanently stored underground to minimize climate change impacts.


  • Design and management of large-scale field R&D and demonstrations programs
  • Joint Industry Project formation and management
  • Technology commercialization and facilitation of new technology field demonstrations
  • Laboratory studies
  • Subsurface characterization, geological modeling, and reservoir simulation
  • Techno-economic feasibility studies
  • Commercial project design and field implementation
Projeo Corporation logo

Advancing safe, affordable subsurface solutions for the energy transition

GTI International subsidiary Projeo Corporation provides geoscience and reservoir engineering technical expertise, experienced operational and field supervision services, and integrated project management for CO2 storage, geothermal, hydrogen storage, and other low-carbon energy projects.

Key Initiatives

map of the Sacramento Basin in Sutter County California

Developing DOE CarbonSAFE CO2 Geologic Storage Sites

H2 Underground Storage Illustration with a cow in a field next to a red barn with H2 underground storage below under the soil

Framework for Enabling Large-Scale Hydrogen Storage in Underground Reservoirs

Close-up illustration of CO2 underground storage with confining rock above the CO2 storage in permeable rock

Permanent Geologic Storage of CO2

Sub Surface Scan Truck next to metal scaffolding

Sub-surface Technologies for the Generation and Production of Low-carbon Hydrogen from Hydrocarbon Resources

Permian Basin

Environmentally Prudent Development of Unconventional Resources

Namakdan Salt Cave On Qeshm Island 480x320

Large-scale Seasonal Geologic Storage of H2

illustration of the earth's layer with a glowing core

Enhanced Geothermal Systems

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