Abstract
Although there are many hot-spring areas in Taiwan, only one geothermal area has been explored. Ten of the hot-spring areas were chosen for exploration to see if there were related geothermal prospects. The Tatun region, 15 km north of Taipei, was first investigated in 1965 because of its intense surface manifestations and easy access. Nineteen exploratory wells were drilled and most tapped steam and hot water. The water was highly acidic and caused serious corrosion, forcing suspension of the field in 1973. However, the dry steam has been tested for multi-uses, and has been successful in a lumber-drying kiln. The hot water from other hot-spring areas is the sodium bicarbonate type. Three areas that have been studied are the Tuchang, Chingshui, and Lushan areas. Tuchang and Chingshui are within 10 km of each other and are considered to be one system. Deep holes have been drilled and hot water recovered through fractures and fissures. The steam has been transmitted to a turbo-generator for demonstration purposes. Although geothermal resources have not been found in connection with Taiwan's hot springs, there are many areas yet to be explored that have potential. Also it is recommended that deep reservoirs of the Tatun area be studied further for possible neutral geothermal fluids.
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