Operating Experience of Milos Geothermal Power Plant with Reinjection Under High Concentration Silica and Saltfield

Abstract

The Milos geothermal prospect located on one of the cycladean islands of Greece represents a high temperature (320 °C), high silica content (1150 ppm) modified sea water resource, the programme of development undertaken by the Public Power Corporation (PPC) of Greece started with the drilling of a number of wells and has progressed to the installation of a pilot-style 2MW(e) condensing power plant which went on-line in December 1986. This plant has been provided by Mitsubishi Heavy Industriea (Mal) under a contract with PPC. Geothermal South Pacific (GEOSPAC) was sub-contracted to Mal to provide technical and acientific assistance in connection with reservoir related matters. We introduce that varioua studies and modification were done to establish an acceptable method of plant operation and waste disposal.