Geological, hydrogeological and geochemical analysis of the geothermal systems in The Büyük Menderes Graben

Download

index.pdf

Date

2012

Author

Güdücü, Hatice

Metadata

Show full item record

Item Usage Stats

229
views

91
downloads

Geothermal reservoirs have become very popular in the last decades due to their renewable energy contents. Turkey has a high geothermal energy potential; especially Western Anatolia is a promising region in terms of its highest energy. Büyük Menderes Graben system is a tectonically active extensional region and is undergoing a N–S extension leading to form geothermal fields in the graben. In the last decade, geothermal exploration, investigations and investments have been increased rapidly through the law related to geothermal energy assigned. The aim of this study is to analyze the geothermal fields located in the graben system in order to investigate their geological, hydrogeological and geochemical features and reservoir characteristics. A data set is compiled from the accessible archives, published papers and documents and several variables have been searched at every field in the graben. The variables include the fluid temperature, the distance to sea, the depth to the reservoir, the reservoir lithology, the chemical constituents, etc. In view of these variables the fields are compared and constrasted and their common characterisrics have been noted. Interpretation of the data set reveals that the fields have some common features and characters however some fields have got notable differences.

Subject Keywords

Hydrogeology., Grabens (Geology)., Geochemistry., Geothermal resources.

URI

http://etd.lib.metu.edu.tr/upload/12615115/index.pdf
https://hdl.handle.net/11511/21934

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

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...
Geochemical modeling of NCG injection in a geothermal well using doublet well model İlgin, Buğrahan; Akın, Serhat; Erol, Selçuk; Department of Petroleum and Natural Gas Engineering (2021-7-29) Geothermal energy is regarded as an environmentally friendly source of energy. However, the amount of non-condensable gases (NCG), which are co-produced with brine, are significantly high in the geothermal fields of Turkey. To overcome the NCG emission produced by power plants, which is mainly CO2, one of the efficient methods is re-injecting the captured NCG into the reservoir. The ultimate aim of the reinjection is to mineralize CO2 in the reservoir as carbonate minerals. In this thesis, a reactive transp...
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...
Fluid-CO2 injection impact in a geothermal reservoir: Evaluation with 3-D reactive transport modeling AKIN, TAYLAN; Baser, Ali; Saracoglu, Onder; Akın, Serhat (2022-01-01) Geothermal energy is commonly recognized as an environmentally friendly source of energy. However, geothermal fluids have unusually high CO2 content, particularly, in carbonated geothermal reservoirs. An efficient method to mitigate the CO2 emissions of geothermal power plants is to re-inject the captured CO2 with the effluent fluid to mineralize mainly into calcite under reservoir conditions (e.g., reservoir temperatures ranging from 200 to 220 degrees C). One of the major concerns about the re-injection o...
Evaluation of geothermal potential of Turkey using GIS based multi criteria analysis Öztürk, Şafak; Kaymakcı, Nuretdin; Department of Geological Engineering (2019) Geothermal energy could meet more than the world’s energy need. However, a very small amount of this energy is utilized by humanity, due to drilling and exploration costs for deep resources. Therefore, prospective studies have great importance in order to reduce the cost for exploration and utilization of geothermal energy. In this study Geographic Information System (GIS) based geothermal assessment techniques are used to determine the promising areas in Turkey. GIS is a combination of three features; oper...

Citation Formats

H. Güdücü, “Geological, hydrogeological and geochemical analysis of the geothermal systems in The Büyük Menderes Graben,” M.S. - Master of Science, Middle East Technical University, 2012.