Thermal and Economic Analysis of Heat Exchangers as Part of a Geothermal District Heating Scheme in the Cheshire Basin, UK (2022)
Journal Article
Brown, C. S., Cassidy, N. J., Egan, S. S., & Griffiths, D. (2022). Thermal and Economic Analysis of Heat Exchangers as Part of a Geothermal District Heating Scheme in the Cheshire Basin, UK. Energies, 15(6), https://doi.org/10.3390/en15061983

Heat exchangers are vital to any geothermal system looking to use direct heat supplied via a district heat network. Attention on geothermal schemes in the UK has been growing, with minimal attention on the performance of heat exchangers. In this stud... Read More about Thermal and Economic Analysis of Heat Exchangers as Part of a Geothermal District Heating Scheme in the Cheshire Basin, UK.

A sensitivity analysis of a single extraction well from deep geothermal aquifers in the Cheshire Basin, UK (2022)
Journal Article
Cassidy, N. J., Egan, S. S., Griffiths, D., & Brown, C. S. (2022). A sensitivity analysis of a single extraction well from deep geothermal aquifers in the Cheshire Basin, UK. Quarterly Journal of Engineering Geology and Hydrogeology, 55(3), Article qjegh2021-131. https://doi.org/10.1144/qjegh2021-131

Deep hot sedimentary aquifers (HSAs) are targeted for geothermal exploitation in the Cheshire Basin, UK. In this study, a single extraction well targeting the Collyhurst Sandstone Formation was modelled on MATLAB coupling heat and fluid flux. The Col... Read More about A sensitivity analysis of a single extraction well from deep geothermal aquifers in the Cheshire Basin, UK.

‘Block and basin’ style rift basins: sedimentological insights from the Mississippian Fell Sandstone Formation (2021)
Journal Article
Howell, L. P., Priddy, C., Mitten, A. J., Jeffery, A. J., Egan, S. S., Leslie, G., …Kearsey, T. I. (2021). ‘Block and basin’ style rift basins: sedimentological insights from the Mississippian Fell Sandstone Formation. Journal of the Geological Society, 179(4), jgs2021 - 083. https://doi.org/10.1144/jgs2021-083

The block and basin tectonostratigraphic framework for the northern Pennine (rift) Basin, within which buoyant granite intrusions core intra-basin fault-bounded blocks, has long held traction. However, many of the elements of this framework are roote... Read More about ‘Block and basin’ style rift basins: sedimentological insights from the Mississippian Fell Sandstone Formation.

Numerical modelling of deep coaxial borehole heat exchangers in the Cheshire Basin, UK (2021)
Journal Article
Brown, C., Cassidy, N., Egan, S., & Griffiths, D. (2021). Numerical modelling of deep coaxial borehole heat exchangers in the Cheshire Basin, UK. Computers and Geosciences, 104752 - 104752. https://doi.org/10.1016/j.cageo.2021.104752

Few deep geothermal wells have been drilled in the Cheshire Basin resulting in high geological and financial risks of such developments. In recent years the focus of exploiting deep geothermal resources in the UK has moved towards lower risk strategi... Read More about Numerical modelling of deep coaxial borehole heat exchangers in the Cheshire Basin, UK.

Deep geothermal energy in northern England: Insights from 3D finite difference temperature modelling (2021)
Journal Article
Howell, L., Brown, C., & Egan, S. (2021). Deep geothermal energy in northern England: Insights from 3D finite difference temperature modelling. Computers and Geosciences, 104661 - 104661. https://doi.org/10.1016/j.cageo.2020.104661

Many of the most widely used deep geothermal resource maps for the UK are produced by contouring around sparsely distributed and often unreliable data points. We thus present a MATLAB-based 3D finite difference temperature modelling methodology, whic... Read More about Deep geothermal energy in northern England: Insights from 3D finite difference temperature modelling.

The influence of low-density granite bodies on extensional basins (2020)
Journal Article
Howell, L., Leslie, G., Clarke, S., Mitten, A., Pringle, J., & Egan, S. (2020). The influence of low-density granite bodies on extensional basins. Geology Today, https://doi.org/10.1111/gto.12297

The Carboniferous North Pennine Basin remains the type locality for the ‘block and basin’ tectonic framework model. It has been widely believed that during periods of tectonic extension, large low-density bodies within the basement permit buoyant blo... Read More about The influence of low-density granite bodies on extensional basins.

Evaluating the Response of Geothermal Reservoirs in the Cheshire Basin: A Parameter Sensitivity Analysis (2019)
Presentation / Conference
Griffiths, D., Cassidy, N., Egan, S., & Brown, C. (2019, May). Evaluating the Response of Geothermal Reservoirs in the Cheshire Basin: A Parameter Sensitivity Analysis. Presented at 2019 AAPG Annual Convention and Exhibition, San Antonio, Texas

Deep geothermal reservoirs (>2 km) from both low- to medium-enthalpy resources are considered as an alternative energy source to fossil fuels in the UK. Geothermal energy can be explored using existing technology from the oil industry and, unlike oth... Read More about Evaluating the Response of Geothermal Reservoirs in the Cheshire Basin: A Parameter Sensitivity Analysis.

Geophysical surveys to help map buried igneous intrusions, Snowdonia, North Wales, UK (2015)
Journal Article
Moseley, D., Pringle, J., Haslam, R., Egan, S., Rogers, S., Gertisser, R., …Stimpson, I. (2015). Geophysical surveys to help map buried igneous intrusions, Snowdonia, North Wales, UK. Geology Today, 109 -115 (6). https://doi.org/10.1111/gto.12096

The geology of the Snowdonia National Park in North Wales comprises a mixture of Lower Palaeozoic shallow marine sediments, acidic igneous rocks and basic intrusions of the Welsh Basin that were subsequently deformed during the Caledonian Orogeny. Th... Read More about Geophysical surveys to help map buried igneous intrusions, Snowdonia, North Wales, UK.

epurposing Britain’s Coal Measures: insights from seismic and borehole-based mapping, and geothermal modelling
Presentation / Conference
Egan. epurposing Britain’s Coal Measures: insights from seismic and borehole-based mapping, and geothermal modelling. Presented at EGU General Assembly 2020

<jats:p> &amp;lt;p&amp;gt;As a consequence of 19&amp;lt;sup&amp;gt;th&amp;lt;/sup&amp;gt; and 20&amp;lt;sup&amp;gt;th&amp;lt;/sup&amp;gt; century coal mining, a vast quantity of subsurface data has been accumulated on Britain&amp;amp;#8217;s late Car... Read More about epurposing Britain’s Coal Measures: insights from seismic and borehole-based mapping, and geothermal modelling.