The Palimpinon Geothermal Resource, Negros, Republic of the Philippines - an Exploration Case History

Abstract

Wells drilled into the Pal impinon geothermal field have intersected an extensive high temperature iquid reservoir in fractured rocks of Miocene age and younger. Production is typically from two or more feed zones and averages approximately 7 per 1. The assessed amount of recoverable or potentially recoverable stored heat energy from the drilled area is equivalent to approximately 9000 MW years of electrical energy but a large part of resides in plutonic rocks, the exploitability of which has yet to be tested. Construction of a 112.5 power station at Puhagan represents the first infield development. The extent of development beyond this figure will depend on several factors including the performance of Palimpinon I,further testing of the pluton and also the full extent of the resource.