Tohoku University Innovates GLDA Fracturing Technique for Geothermal Applications
Tohoku University has introduced a hydraulic fracturing method utilizing plant and microbe components, enhancing geothermal and natural gas extraction. This innovation addresses challenges in fracturing volcanic rock formations, which are critical for creating fluid pathways.
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Tohoku University has developed a hydraulic fracturing method aimed at improving geothermal power and natural gas extraction efficiency. This method employs a reactive viscous fluid made from GLDA, a plant-derived chelating agent, and scleroglucan, a microbe-derived thickening agent, to create fractures in volcanic rock.
The combination of these materials improves viscosity retention at high temperatures and promotes localized weakening of rock structures. A patent for this technology has been filed (application number 2025-77753). Japan's pursuit of expanding domestic energy resources highlights the significance of this research in enhancing geothermal utilization.
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