drilling and completions

AlterG develops utility-scale geothermal projects to deliver clean, firm, and affordable 24/7 baseload power with no CO2 emissions. The company deploys Enhanced Geothermal Systems (EGS), leveraging legacy geothermal and oil and gas supply chains, with a team built on oil and gas, geothermal development, and capital formation experience.

Enhanced Geothermal Systems (EGS) deploymentexploration and geosciencegeothermal project developmentreservoir engineering

Pioneering Underground Energy Storage & Subsurface Injection We provide world-class services in underground storage, subsurface injection, and associated surface facilities that go further to solve your problems. Geostock Sandia: Leading Underground Injection Control, Energy & Carbon Storage Solutions North America's premier engineering firm for underground injection control (UIC) and carbon capture storage (CCS), delivering comprehensive Class I-VI injection well services, CO2 sequestration permits, and geological storage solutions across the United States and Mexico. Our Approach: Expert Underground Storage & Subsurface Injection Services for Energy Infrastructure With four decades of specialized experience, Geostock Sandia excels in underground injection control well design, construction, and operation. Our expertise spans carbon dioxide geological sequestration, Class VI permit.

carbon capture and storageconstruction managementEPA regulatory compliancefeasibility studiesgeological characterizationmechanical integrity testingproject managementreservoir analysissubsurface characterizationunderground injection controlwellbore design

Hephae Energy Technology develops high temperature electronics and an integrated drilling system to enable next-generation geothermal energy. Leveraging aerospace technology and subsurface expertise, its high temperature electronics have broken the 200ºC barrier, supporting the well life cycle from drilling and completions to operations and maintenance. The company is headquartered in Spring, Texas, with offices in Spain, the UK, and Canada.

high temperature electronicsintegrated drilling systemoperations and maintenance