Geothermal Project at St. Lucia (W.I.) - A. Preliminary Assessment of the Resource

Abstract

Two deep wells uere drilled in St. Lucia (W.I.); one of them was productive. A brief description of the geological characteristic s from both wells is included. Extensive pressure and temperature surveys were carried out during the stages of drilling and completion of both wells and during the discharge tests on the producttve weil. A high-temperature, permeable zone was indicated in the Sulphur Springs area below 4382 ft. Two production tests were carried out in order to have a preliminary assessment of the productivity of the well . Analyses of fluid samples taken from the production line under controlled pressure and temperature conditions, alloued the definition of several basic geothermal characteristics . From these measurements it was possible to see that produced fluids exhibited chemical and physical characteristics belonging to a ratio (up to about 25% several centers scattered in various localities.