PROCEEDINGS, Thirty-Ninth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, February 24-26, 2014 SGP-TR-200 Prospects for Large-Scale use of Geothermal Energy In the Republic of Dagestan Rasul M. ALIYEV1, Victor A. VASILYEV2, Gasan B. BADAVOV3, Adolf A. CHERNIAVSKYI4 1 JSC "Geotermneftegas", Russia, 367030, Makhachkala, Shamil av., 55A,
[email protected] 2 JSC "ENIN", Russia, 119991, Moscow, Leninsky Prospekt, 19,
[email protected] 3 The Institute for geothermal research RAS, Russia, 367030, Makhachkala, Shamil av., 39A,
[email protected] 4 JSC "Rostovteploelektroproekt", Russia, 344002, Rostov-on-Don, Budennovsky av., 2,
[email protected] Keywords: Republic of Dagestan, geological and geothermal research, depleted oil fields, fractured reservoirs, underground circulation system, the binary power plants, cogeneration. ABSTRACT The problems of the state and prospects of geothermal energy use in the Republic of Dagestan, including the resource base, technology and investment projects are considered. It is shown that in the North Caucasus Federal District, Dagestan has the greatest explored reserves of geothermal water and the most favorable set of geological and geothermal conditions for their large- scale use in the energy sector and in the urban economy. The geological and geothermal conditions in the Northern Dagestan and adjacent areas of the Stavropol Territory and the Chechen Republic were studied according to the data of drilling and development of oil and gas fields. Dozens of fields of interest to create geothermal binary cycle power plants (GPP) based on groundwater circulation systems (GCS) are identified. The features of the structure and fractured zones for deposits with carbonate water bearing rocks (limestone and dolomite) opening at depths of 4100-4800 m are found.