Estimation of upcoming problems in Alaşehir geothermal field using a numerical reservoir model

Date

2021-04-01

Author

Aydin, Hakki
Akın, Serhat

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

336
views

0
downloads

Alaehir geothermal area located in Alaehir Graben, West Anatolia, is the latest target for geothermal field development in Turkey. Seven different operators are developing the power capacity in this geothermal field on a strictly competitive and largely confidential basis without the significant exchange of resource information among them. Currently, eleven binary and combined flash-binary geothermal power plants with widely changing power generation efficiency between plants produce from the same reservoir. In order to identify upcoming problems for the complex and aggressive geothermal exploitation in Alaehir Geothermal Field, a highly populated numerical reservoir model was developed in TOUGH2 using different data sources such as geology, geophysics, pressure transient tests, tracer test, and geochemistry. The real-time power data are retrieved from the transparency platform of the Turkish energy exchange. The geothermal fluid is withdrawn from the field at a total production rate of 12,600 tons per hour. There are more than 100 wells in the field. The flow rate and wellhead flowing pressure of wells in the field central are used for calibration. The flow rate of wells changes between 100 and 450 tons per hour. The numerical model results are compared with a Monte Carlo simulation results in the field. Numerical reservoir simulation showed that more than 270 MWe production is not supported by artesian flow which is in agreement with Monte Carlo simulation results. The pressure decline of the field was found 3 bar per year. Using this model, power supply capability of the field is discussed considering economic and physical reliability. The best solution for maximizing energy exploitation from the field was found to produce with unitized reservoir management.

URI

https://hdl.handle.net/11511/89473

Journal

ARABIAN JOURNAL OF GEOSCIENCES

DOI

https://doi.org/10.1007/s12517-021-06830-z

Collections

Department of Petroleum and Natural Gas Engineering, Article

Suggestions

OpenMETU
Core

Geothermal Resource Assessment of Alasehir Geothermal Field Akın, Serhat (2017-02-15) Alaşehir geothermal area located in Alaşehir Graben, West Anatolia – Turkey is the current target for geothermal field development. Currently, more than 6 operators are developing the power capacity in this field on a strictly competitive, and largely confidential, basis without significant exchange of resource information among them. Although there are three binary and a combined flash-binary power plants with widely changing power generation efficiency between plants, additional new plant capacity will be...
Coiled Tubing Acid Stimulation of Alasehir Geothermal Field Turkey Akın, Serhat; Yazman, Metin; Karadağ, Mahmut; Seçkin, Cemil; Tonguç, Erinç; Gürel, Emrah; Yarım, Harun (null; 2015-04-26) Alaşehir geothermal area located in Alaşehir Graben, West Anatolia – Turkey is the current target for geothermal field development. Currently, more than 6 operators are developing the power capacity in this field on a strictly competitive, and largely confidential, basis without significant exchange of resource information among them. Although there are three binary and a combined flash-binary power plants with widely changing power generation efficiency between plants, additional new plant capacity will be...
Practical Experiences About Reservoir Monitoring in Alasehir Geothermal Field Aydın, Hakkı; Akın, Serhat; Tezel, Seray (2018-02-14) Alaşehir geothermal area that is located in southern part of the Alaşehir Graben is one the important geothermal areas in Turkey. Currently, more than 6 operators are exploiting this field on a strictly competitive, and largely confidential, basis without significant exchange of resource information among them. This paper discusses monitoring of the response of part of Alaşehir geothermal system to large scale exploitation. In this regard, temperature and pressure of the reservoir, steam flowrate, brine flo...
Fractal Modeling of Outcrop Fracture Patterns in Alasehir Geothermal Reservoir Turkey Gürel, Emrah; Coşkuner, Yakup Berk; Akın, Serhat (2016-02-24) Alasehir geothermal area located in Gediz graben is the current high enthalpy geothermal target in Turkey. The geothermal system mainly produces from fractured Paleozoic Menderes metamorphics. In order to characterize the fractured reservoir formations, marble and schist outcrop fracture networks were identified and traced using image analysis software. Primary and secondary fracture histograms were developed and box counting method was used to calculate fractal dimension. It was observed that for both form...
Comprehensive tracer testing in the Germencik field Akın, Serhat (null; 2018-02-14) Germencik Geothermal Field, which is one of the oldest high enthalpy geothermal fields in Turkey, is operational since 2009. As of 2017, two 47.4 MWe dual flash and four 22.5 MWe binary power plants have been constructed to exploit liquid dominated reservoir with feed zone temperatures as high as 234C. In order to optimize re-injection a tracer test where three different naphthalene sulfonates tracers were simultaneously injected into three different re-injection wells, was conducted. Quantitative and qual...

Citation Formats

H. Aydin and S. Akın, “Estimation of upcoming problems in Alaşehir geothermal field using a numerical reservoir model,” ARABIAN JOURNAL OF GEOSCIENCES, pp. 0–0, 2021, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/89473.