| Abstract |
The Sabalan geothermal field is a high-temperature area under development. Geothermal exploration was started in 1975 by the Ministry of Energy of Iran. After revolution in 1979 in Iran, it was stopped, and it was started again in 1998 by SUNA – the Renewable Energy Organization of Iran. Three deep exploration wells and two shallow reinjection wells were drilled in 2002-2004 in three sites A, B and C, by SUNA beside the preparation of two sites D and E for new drilling. This area is about 16 km southeast of the town of Meshkin shahr. There is an overall potential for the generation of about 200 MWe over the greater prospect area. S.K.M was the consultant from 1998 to 2006 as main consultants .SUNA is planning to drill thirteen new wells, and build a 50 MWe power plant, when these wells will be drilled. As the first part of project, SUNA will build a pilot power plant in order to confirm, that a geothermal power plant can be operated in Iran. Moshanir was the consultant for civil work 1998-2006 and since 2006 the consortium of Moshanir, EDC and Lahmeyer was selected as main consultant for geothermal field that the new drilling was started since of 2008 till 2011. In this stage 5 deep wells were drilled and one of the pervious well was be deeper. Well NWS-5D is the fifth drilled well in Sabalan geothermal project and part of drilling operation was done at the first stage of exploration at 2004 and the final part was complete at the second stage of exploration at 2008. Well NWS-9D is the ninth drilled well in Sabalan geothermal project and part of drilling operation was done at the second stage of exploration at 2010. These wells were discharge tested at 2012. During the NWS-5D discharge test for any well head pressure changing all the physical and chemical parameters of NWS-5D was recorded and also these parameters was determined for NWS-11RD , NWS-1D & NWS-4D. Also during the NWS-9D discharge test for any well head pressure changing all the physical and chemical parameters of NWS-9D was recorded and also these parameters was determined for NWS-8D, NWS-4D, NWS-5D & NWS-11RD. In this paper we discuss the interpretation of output data that was received by the running memory into NWS-11RD, NWS-1D & NWS-4D while in discharge and shut down of NWS-5D and also discuss the interpretation of output data that was received by the running memory into NWS-8D, NWS-4D, NWS-5D & NWS-11RD while in discharge and shut down of NWS-9D. |