ABSTRACT

This chapter discusses the quality control/quality assurance procedures applied to geothermal water testing. Geothermal waters can be used not only to extract energy but also in the context of improving the water balance and reducing or eliminating the need to inject waters into the formation as well as meet local needs. The effectiveness of the treatment process is monitored on the basis of the results of physical and chemical analyses of raw thermal waters, retentate and permeate. The quality of geothermal waters directly in the well or within installations is evaluated on the basis of the results of chemical analyses covering a certain number of samples collected from a certain point/network/installation within a specified time interval. The results of geothermal water testing depend on the entire process, starting with the proper design of the monitoring point/network, correct sampling, proper preservation, storage and transportation of samples to the laboratory, sample processing and analysis of sample chemical composition using specific analytical methods.