An opportunity to repurpose petroleum and geothermal exploration wells
In the United Kingdom, there is a legacy of abandoned, plugged or declining oil and gas production wells. These wells provide scope for low-cost repurposing for geothermal extraction using the deep BHE design. Some of the key risks associated with these wells are reduced given that the pressure and subsurface temperatures are known. The deep BHE design will also minimise any risk associated with petroleum fluid interactions.
Many companies are looking to use this technology to unlock the geothermal sector, including Egdon Resources for the Dukes Wood-1 well in Nottinghamshire and the Kirklington well in the East Midlands, and CeraPhi Energy and IGas in Lincoln. It has been estimated that 560 out of the 2242 onshore hydrocarbon wells, which were drilled to depths >500 m, could be repurposed in the United Kingdom as conventional resources for geothermal production. However, it is likely that far more can be repurposed in the deep BHE design.
Egdon Resources plc (LON:EDR) is an independent onshore focused oil and gas exploration and production business. An established oil and gas exploration and production business with 41 licences in proven oil and gas producing basins in the UK.