viable geothermal energy supply from exhausted fracked gas wells?

Question

The UK legislator with primary responsibility for energy has claimed that exhausted fracked natural-gas wells will be suitable for re-use as a geothermal energy supply (not necessarily geothermal for electricity production, but rather for heat distribution, so let's say 80° - 250°C). Is there much of a co-location of the geo-thermal resource in the UK, with the more easily obtained frackable natural gas; and would an exhausted fracked well be structurally suitable for this?

Answer 1

Using geothermal energy as a resource for heat distribution depends on several criteria: heat exchange, fluid volume, and well depth. An exhausted fracked well might be structurally suitable for this purpose if the underlying bedrock is stable. Thorough research and investigation would need to be carried out by engineers and geologists.