Geothermal energy is heat energy contained in or discharged from the earth’s crust. In the right location and with the right application of technology, this energy can be used for generating renewable electricity and direct heat, and widespread deployment could play an important role on the path to net-zero.
EPI provides the following services to support identification and development of both natural and enhanced geothermal systems (EGS):
- Basin screening / high-grading
- Hydrothermal reservoir characterisation
- Reservoir modelling and simulation
- Low impact well stimulation for EGS (MicroStim)
EPI’s MicroStim technology technology offers low impact and clean stimulation of geothermal wells near urban areas, enhancing the heat flow and deliverability of the reservoir to create Enhanced Geothermal Systems.
MicroStim is a process for gently opening natural fissures within rocks and filling the opening with small inert micro spheres to increase heat productivity and/or cold water reinjection. MicroStim uses only water, nontoxic microspheres and no harmful chemicals. The small grains used takes advantage of Stokes law (related to the rate at which different sized particles settle) to prop even the smallest formation fissures, and as the proppant easily stays in suspension, very little energy is required during the injection phase which results in a very small operational footprint suitable for urban areas.
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