Modeling Systems of Magmatic Fracking Beneath Active Volcanoes
A.V. Kiryukhin, S.A. Fedotov and P.A. Kiryukhin
Event name: Saint Petersburg 2018
Session: Unconventional Resources, Prospects of Development and Features of Exploration & Production of HTR Reserves
Publication date: 09 April 2018
Info: Extended abstract, PDF ( 754.58Kb )
Price: € 20
The analysis of local seismicity within active volcanoes (Avacha–Koryaksky cluster, Mutnovsky-Gorelovsky cluster, Kluchevskoy group) during the 2000–2017 period revealed a sequence of plane-oriented earthquake clusters that we interpret as a process of dike and sill injections (magmatic fracking). Magmatic fracking within volcanic systems causes the formation of permeable reservoirs with a vertical extent of 35 km (Kluchevskoy vol.) and a lateral extent of 15 km (Shiveluch vol.) depending on geomechanical conditions of host rocks. These reservoirs are subject to the following hydrothermal circulation with possibilities of creation of geothermal reservoirs and/or hydrocarbon concentration. TOUGH2-EOS1-sc modeling is used to estimate the conditions of hydrothermal reservoirs formation in a range of temperatures up to 1200 oC and pressures up to 1000 bars.