Identification geothermal system based on 1D, 2D, 3D inversion and TDEM static shift correction study case Mt. Arjuno-Welirang, East Java

2020 ◽  
Author(s):  
Waindini Nur Fitri ◽  
Wien Lestari ◽  
Mariyanto Mariyanto ◽  
Amien Widodo ◽  
Dwa Desa Warnana ◽  
...  
Keyword(s):  
Geothermal System ◽  
Static Shift ◽  
3D Inversion ◽  
Study Case

scholarly journals Geothermal System Study Case near Bucharest

2019 ◽  
Vol 111 ◽  
pp. 06058
Author(s):  
Galina Prică ◽  
Lohengrin Onuțu ◽  
Grațiela Țârlea
Keyword(s):  
Thermal Response ◽  
Hot Water ◽  
Geothermal System ◽  
System Study ◽  
Accurate Calculation ◽  
Good Efficiency ◽  
Efficient System ◽  
One Step ◽  
Study Case ◽  
Geological Formations

The article shows a study case of a geothermal system near Bucharest. In the paper it is shown that for a good efficiency of a geothermal system for heating and air conditioning, it is important to follow a few steps. One step is a very accurate calculation of the heat and cold load. In the next step it is important to use a specific equipment to obtain the Thermal Response Test (TRT) of geological formations crossed by the borehole. TRT is helpful in providing information related to the evolution of the soil temperature while introducing a thermal load. All information that can be obtained or calculated from the TRT will provide how the climate system will function in time and its efficiency. Furthermore, the effective thermal conductivity and thermal resistance of the well will be determined, extremely important parameters in designing the correct length of the geoheat exchanger. The article used specific software to simulate the evolution of parameters in time, for soil and heat pump. Earth Energy Design offer information for the number of needed boreholes, the depth and the yearly evolution of the soil’s temperature in time for the system etc. Following all these main steps, finally a very efficient system can be designed, that can ensure the heating and produce hot water for the consumption of a house, office building or of other destination buildings.

3D inversion of a subsurface magnetic anomaly: study case of Lucialva anomaly (SW of Mato Grosso, Brazil)

2013 ◽  
Author(s):  
Divanir Conego Junior ◽  
Vanessa B. Ribeiro ◽  
Marta S. M. Mantovani ◽  
Vinicius Hector Abud Louro
Keyword(s):  
Magnetic Anomaly ◽  
3D Inversion ◽  
Mato Grosso ◽  
Study Case

3D magnetotelluric exploration of Sete Cidades Volcano, São Miguel Island, Azores

2017 ◽  
Vol 5 (2) ◽  
pp. T219-T230 ◽  
Author(s):  
Paulo T. L. Menezes ◽  
Jandyr M. Travassos ◽  
Adriano J. A. Marçal ◽  
Fernando A. Monteiro Santos
Keyword(s):  
Geothermal Energy ◽  
Energy Demand ◽  
Geothermal Field ◽  
Geothermal Reservoir ◽  
Impedance Tensor ◽  
Geothermal System ◽  
3D Inversion ◽  
High Enthalpy ◽  
Reconnaissance Survey ◽  
Clay Cap

Geothermal energy accounts for 43% of the electricity expenditure of São Miguel Island, Azores Archipelago. All production comes from the Ribeira Grande (RG) high-enthalpy geothermal field. To meet the growing energy demand in the island, it is necessary to extend the exploration efforts to new areas. We evaluated the results of a broadband magnetotelluric reconnaissance survey conducted at Sete Cidades Volcano, placed only 30 km westward of the RG field. The resistivity structure of the Sete Cidades geothermal system was obtained through a simultaneous 3D inversion of the full impedance tensor and tipper. The bathymetry and the topography of the island were treated as fixed features in the model. The geothermal reservoir at Sete Cidades is outlined as a northwest–southeast elongated resistive anomaly, geologically controlled by the Terceira Rift fracture zone. We have also identified high-conductivity zones between 1000 and 4000 m below mean sea level, probably associated with clay cap rocks overlying the geothermal reservoir.

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