Baker Hughes has launched ThermaStim, a low corrosive, in-situ acidising system to harness geothermal energy
A key feature of ThermaStim is its zero reactivity and corrosivity at surface. Where traditional acids in geothermal wells often react immediately near wellbore, ThermaStim activates deeper in the formation under the high temperature conditions found in geothermal formations. This unique quality ensures deeper penetration into the reservoir with low fluid volumes, allowing for improved stimulation.
Moreover, while many conventional solutions demand 40% or greater of the total fluid cost due to inhibition, ThermaStim saves cost on corrosion inhibitors. The in-situ acid generation triggered by temperature allows for protection of wellbore tubulars and downhole equipment without the need for an expensive corrosion package.
The technology eliminates the need for acid tanks, making it safe to handle on location and reducing the carbon emissions and environmental and logistical challenges associated with transporting large acid volumes. The in-situ design reduces HSE concerns as there is no handling or pumping live acids.
“ThermaStim represents Baker Hughes’ unwavering commitment to pioneering in the energy sector, particularly reflecting our strength over the past 40 years in geothermal energy. By introducing this unique approach to geothermal extraction, we're enabling our clients to position for new frontiers, meeting the evolving demands of the energy transition,” said Rodrigo Farias, vice president of Pressure Pumping at Baker Hughes. “Our aim is to tap into the Earth's power in a safer and more efficient manner.”