A good informative article by Stellae Energy’s Head of Subsurface David Pickering is reposted here. https://lnkd.in/gKYwVQmt O&G folks aren’t necessarily very familiar with SUPERCRITICAL FLUIDS, but they are an important concept for those working in geothermal / CCS and something with which they need to become comfortable. I have drawn a couple […]
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Another type of potential CCS location is depleted oil & gas reservoirs. In these kinds of locations, there would typically be much more data available initially for the technical assessment of the storage capability and any potential integrity issues. Existing well records, production data, and geophysical surveys would be useful […]
The first in a series of posts about successful CCS projects. Deep Saline Aquifers are considered good potential for CCS projects, but substantial subsurface geophysical and geological work is necessary to demonstrate this suitability and long term integrity. One attraction is the fact that these types of aquifers are widespread […]
The East African Rift System is a well known source of Geothermal Energy in Africa, but there is potential for low to medium enthalpy heat resources in more than 25# African countries associated with intrusive plutonic rock formations. Often these locations have been the site of shallow mineral exploration and […]
Another Geothermal Play example is Intrusive Rock as seen in NW Geysers in California. Significant deep heat resources that took some time to fully identify and evaluate in this underdeveloped area. Deepening two exploration wells and running a pilot development helped prove up these resources and open up the location […]
As Europe is facing high electricity costs and energy security issues, there is an economic, environmentally sustainable energy source beneath their feet – persistent Geothermal Energy. In addition to other good prospective locations in Western and Eastern Europe, there are two good basins in Germany – the Upper Rhine Graben […]
La Palma’s recent volcano reminded everyone of the geothermal energies below some volcanic islands. Nearby Tenerife has been explored and identified with geothermal potential. This flyer is about their neighbouring island Gran Canaria and how initial exploration has identified geothermal potential. Repsol recently announced its plans to investigate this potential […]
There are good technologies to capture Carbon and tens of thousands of suitable subsurface locations for Storage. With the continued use of carbon based energy sources and processes during our Energy Transition, we should be rapidly scaling up CCS.
Geothermal Plays have been described, the types and methods of data collection listed, and the way assessments are performed explained. Here are some examples of the various types of Geothermal Plays, their geologic settings, heat sources and transport mechanisms, and their locations.
After identifying the type of Geothermal Play, and performing exploration to obtain data, we would be able to make an Assessment of the potential resource to see if it could be economically developed. With modern technologies and tools, there are tens of thousands of suitable locations available to help access […]
When evaluating a potential Geothermal Play reservoir, there are several aspects to be investigated: (1) Trap Integrity, (2) Geothermal Reservoir (properties), (3) Heat Flow, and (4) Structure. Data is measured at the Surface, in the Overburden, and in the Reservoir or Aquifer. The integration of this data and how it […]
With conduction-dominated plays representing an increasingly attractive source of Geothermal Energy, the potential Geothermal reservoir properties need to be evaluated for suitability. One approach is to evaluate the ratio of porosity to permeability and compare it to other locations and applications. This illustration shows some good examples of rock lithologies […]