Development potential of the Dauin geothermal prospect, Negros Oriental, Philippines
- PNOC-Energy Development Corp., Makati City (Philippines); and others
The Dauin geothermal prospect, situated 5 km southeast of the Palinpinon I and II sectors, was drilled between 1982 and 1983 to test its viability for development. Drilling results indicated that DN-1 was drilled closer to the source region than DN-2 where permeability, temperature, and alteration mineralogy were generally unpromising. DN-1 encountered temperatures of at least 240{degrees}C and a neutral-pH fluid with reservoir chloride of 3000 mg/kg. In particular, the presence of sulphur in the DN-1 discharge provoked debates and many speculation on the nature of the fluid in the area. The area was re-evaluated in 1996 for the following reasons: (1) Renewed interests on other geothermal prospects within Negros Island from an economic point of view and the success of modular plant developments are Pal II and other areas in the Philippines; (2) Reinterpretation of the genesis of sulphur contained in the DN-1 discharge fluid; (3) Encouraging temperature, permeability and neutral-pH alterations at depth and the neutral character of DN-1 discharge fluid; and (4) Reinterpretation of the hydrological model from a geochemical and geological point of view. The study indicates good potential for modular power development.
- OSTI ID:
- 602777
- Report Number(s):
- CONF-971048-; TRN: 98:001318-0085
- Resource Relation:
- Conference: Geothermal Resources Council (GRC) annual meeting, San Francisco, CA (United States), 12 Oct 1997; Other Information: PBD: 1997; Related Information: Is Part Of Meeting the challenge of increased competition; PB: 665 p.
- Country of Publication:
- United States
- Language:
- English
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