Country Update of Geothermal Developments in Korea

Abstract

This study updates geothermal energy developments in Korea. The attached tables 1, 2 and 3 represent the geothermal localities in South Korea, development of thermal water in North Korea, and the drilled wells in South Korea respectively. Some of the basic information are additions to the previous papers.

Information is provided on the status of geothermal energy utilization in Korea, with emphasis on development from 1987 to 1994. A total of 276 sites which respectively include 38 and 679 thermal springs in North and South Korea, have been identified with a low temperature energy use.

Thermal waters exploited from the Cretaceous Boolgooksa Granite and the Jurassic Daebo Granite have a certain degree of higher temperature. Sufficient vertical permeability at the intersection of faults or fractures, leads to the formation of thermal springs. Geologic formations, structures and sediment thickness control the geothermal field. The thermal wells in South Korea are suitable for public baths, greenhouses and fish farming. The most remarkable and significant branch in North Korea is the balneological use and building heating related to the bathing complex and resorts.