Geophysical Methods Applied to the Assessment of the Bouillante Geothermal Field (Guadeloupe, French West Indies)

The geothermal field of Bouillante is located on the west coast of the Island of Guadeloupe in the Lesser Antilles. It has been explored in the beginning of the 70’s and was producing 4 MWe until 2003 from a single well, BO2. Production increased up to 15 MWe in 2004, with two new wells, BO5 and BO6, drilled 500 m south-east of BO2. The producing zone is located along the EW Cocagne Fault, intersected by these three wells at different depths between 300 and 1000 m. Production and tracer tests and geochemical results show that the reservoir is of large extension and connected to the sea. Geological reconnaissance and the existence of hydrothermal springs along the seashore and off shore in the Bay of Bouillante suggest that other geothermal resources possibly exist in the northern part of the bay.