JICA Geothermal Exploration Study in Yangbajing, Tibet, China

Abstract

By the official assistance program of Japanese Government it has conducted a geothermal resources exploration study at Yangbajing, Tibet, China. In this study project it has carried out some ground surface exploration, drilling a deep well, production test of an existing deep well and reservoir evaluation etc. A new deep exploration well has been drilled and has caught the deep reservoir but because of some well troubles it could not blow. Production characteristics of an existing deep well has evaluated by the production test. Reservoir simulation has carried out and geothermal resources capacity has evaluated. As a result, it has evaluated that Yangbajing reservoir, which includes the deep and the shallow reservoirs, can stably produce 200t/h steam more than 30 years.