Southampton no.1 (Western Esplanade) geothermal well: geological well completion report

Southampton No 1 (Western Esplanade) was drilled as a geothermal development well, on behalf of the Department of Energy in association with Southampton City Council, following the successful testing of Marchwood No 1 Borehole and studies of the geothermal potential of the Wessex Basin area by the Institute of Geological Sciences. The site was selected near Southampton city centre, with the aim of providing space heating for the proposed Western Esplanade development area. The nearby Marchwood No 1 Borehole is situated 1.8 km to the south-west, and the south-east part of NERC 81-1 seismic line is adjacent to the site (Figure 1.2). Southampton No 1 is situated in an -area of negative gravity anomaly as indicated on the regional Bouguer anomaly map (Figure 1.4).