Numerical modeling of Edremit geothermal field

Günay, Emre
The purpose of this study is to examine the geothermal potential, sustainability, and reinjection possibility of Edremit geothermal field. In order to investigate this, a numerical model consisting of a hot and cold water aquifer system is established. A two dimensional cross sectional model is set to simulate this geothermal system. Different pressure and temperature values are applied to the nodes at the boundaries to perform a steady state calibration which minimizes the computed results and observed values obtained from the near well logs. After the calibration, three alternative scenarios are proposed and the response of the pressure and temperature to these conditions is evaluated. At first the water is pumped from the wells of Yağcı, Derman, Entur and ED-3 seperately at a mass rate of 5 kg/s and energy rate of 4.182 x 105 J/s. Then, in scenario 2 the water is pumped at the same rate from all the wells mentioned in the first scenario together. For the third scenario another well is opened to the geothermal system and 80% of the pumped water (temperature being 200C) is injected to the system from the wells while all the wells mentioned are working. The results of these scenarios are utilized to evaluate the reservoir in terms of its response to different production and reinjection conditions. Interpretation of the reservoir response in view of the pressure and temperature declines emphasize that such a simulation study can be applied to assess potential and sustainability of the geothermal systems.


Integrated 3-D finite element simulation of the Edremit geothermal system
Yoğurtçuoğlu, Alp; Karahanoğlu, Nurkan; Department of Geological Engineering (2016)
The Edremit Geothermal system consists of a shallow cold aquifer and a hot reservoir layer at depth. A 3-Dimensional Finite element model with 65596 nodes is used to simulate this system by an integrated algorithm in a 3 km by 3 km with 300 meters of depth study area consisting of currently operating geothermal field deep water wells. To determine the permeability values and hydraulic gradient values in the study area, a 2-Dimensional simulation was performed with 27664 nodes for the entire Edremit Basin, a...
Uncertainty quantification by using stochastic approach in pore volume calculation for geothermal reservoir
Gürel, Emrah; Akın, Serhat; Department of Petroleum and Natural Gas Engineering (2015)
This study will present the application of a stochastic approach and experimental design techniques to a geologic system in order to quantify the uncertainty of pore volume estimations for a liquid dominated high temperature geothermal reservoir. The pore volume is a key element when defining the total resource available in the field. Alasehir geothermal reservoir pore volume uncertainty has been assessed. The uncertainties being addressed include geometry (top of reservoir and base of reservoir), reservoir...
Application of non-market economic valuation method to value the environmental benefits of geothermal energy in monetary terms
Horasanlı, Erol; Alp, Emre; Department of Environmental Engineering (2010)
Determining environmental economic benefits of geothermal energy is difficult since there is no market for all environmental goods and services related to it. In order to determine and measure the market price of non-market goods and services, non-market valuation methods are used. Since intangible benefits do not have monetary values, non-market valuation techniques are applied to estimate them. Non-market valuation methods are important tools for policy makers in the cost and benefit analysis and environm...
Simulation of geothermal reservoirs with high amount of carbon dioxide
Küçük, Serhat; Akın, Serhat; Department of Petroleum and Natural Gas Engineering (2018)
Geothermal energy is always attributed as a sustainable and environmentally friendly source of energy. But in some cases, amount of the greenhouse gas emissions from geothermal fields become a big issue. Kızıldere Geothermal Field, one of the most important and large scale geothermal fields of the world, is a subject of these issues, experiencing excess amount of CO2 production rates and a rapid decline in the reservoir pressures. This study aims to construct a numerical model of the Kızıldere Geothermal Fi...
Soil CO2 Flux and Temperature Measurements in Kızıldere Geothermal Field
KÜÇÜK, SERHAT; başer, ali; saraçoğlu, önder; AKIN, TAYLAN; şentürk, erdinç; tüzen, mahmut kaan; Akın, Serhat (2021-10-01)
Geothermal fields in Turkey have substantially higher carbon dioxide content compared to a typical geothermal field in the world. Geothermal Emission Control (GECO) project aims to reduce carbon emissions by reinjecting produced carbon dioxide from a pilot reinjection well. A high-resolution CO2 flux meter is used to measure the surface carbon dioxide flux and temperature parameters in Kızıldere field, which is one of the demonstration fields in this project. The aim of these measurements is to map the natu...
Citation Formats
E. Günay, “Numerical modeling of Edremit geothermal field,” M.S. - Master of Science, Middle East Technical University, 2012.