Observation Studies of Geothermal Wells in Sorgun Geothermal F?eld (Yozgat-Turkey)

Abstract

A total 10 geothermal wells have been drilled ranging from 104 m to 444 m depth between the years 1988- 2008 in Sorgun (Yozgat-Turkey). Geothermal area today, 1300 equivalent houses heating are performed with geothermal district heating system which founded in 2007. A part of this water which returning to use the heating center, are transmitted for thermal spas and greenhouses as an integrated using. The remain part of the water is injected to the underground by a reinjection well. At the production wells in the field, physical and chemical measurements of thermal waters and water level observations have been made for the period of 5 years, covering 2007-2012. Waters of geothermal wells have been measured as between 75 ¢XC and 81 ¢XC temperature, between 2510-3000 ƒÝS/cm electrical conductivity and between 7.1-8.5 pH. Before production, static water level was determined as 63 m. After production, water level has been measured between 83 m and 110 m. According to preliminary data, when the relationship between flow rate and the dynamic level examined, it was observed that reinjection contribute to the system. The production and reinjection data have to be followed more sensitive and for development and sustainable using of the geothermal system.