CHEMICAL CLEANING AND REJUVINATION OF GEOTHERMAL WELLS AND SURFACE EQUIPMENT

Abstract

The paper presents the method and the results for increasing recovery of geothermal production well, injection well, binary systems, and surface equipment. The deposit in any part of the geothermal system such as production well, surface equipment, or injection well can reduce the production of steam and thus impact power production. The technology reported here is able to clean the wells and other equipment both online and offline. The method is based on a systematic laboratory study using either a complete deposit analysis or predicting the composition of the deposit based on system parameters and using Geomizer as the predicting tool. The results from the rejuvenation of the injection well at a geothermal plant are also discussed in this paper. The injectability of the injection well was improved by 73% and the plant gained 1MW/hr power.