Hydrothermal resources of high temperatures are hot water or steam occurrences with temperatures of more than 150 °C. They are located mainly in geologically recent tensile zones of the upper earth crust, such as oceanic rift systems, graben systems and at the edges of lithospheric slabs, frequently in connection with volcanoes. In vapor-dominated deposits, the reservoir pressure is lower than the steam pressure, according to the reservoir temperature. For this reason, there is mainly water vapor in the deposit, whose discharge is prevented or hampered by an impermeable cap rock. Vapor dominated deposits are the highest quality and most easily useable geothermal deposits. The temperatures of the known and frequently already used vapor reservoirs mainly range between 200 and 300 °C. The liquid dominated deposits reach similarly high temperatures. A higher hydrostatic pressure prevents boiling, thus in these deposits the liquid state predominates (source : Energy Resources 2009: Reserves, Resources, Availability. Part 2: Coal, Nuclear Fuels, Geothermal Energy 

Innovative new uses of geothermal energy are being researched and implemented throughout the world. Karlsruher Institute for Technology and its partners in Germany are creating GeoLaB, an underground research facility to understand fundamental questions of reservoir technology of geothermal systems. The plan is to accelerate research and prepare technology for widespread use. 

Revive abandoned wells

We make use of IHS International Well data base  AND National Oil and Gas public domain databases to identify potential locations of geothermal and lithium recovery sites. With about 200 years of oil and gas exploration and production, the amount of available well data is enormous. The focus had previously always been on finding oil and gas and hence water producing wells have been plugged and abandoned. We propose to study the available data in detail to understand if its feasible to revisit the abandoned or suspended wells of depleted fields, and turn the abandoned wells into geothermal or Lithium producing sources.