CO2 Decline in Alaşehir (Turkey) Geothermal Reservoir

Date

2021-10-01

Author

Akın, Serhat
Aydın, Hakkı
AKIN, TAYLAN

Metadata

Show full item record

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

Item Usage Stats

250
views

0
downloads

Reinjection of gas free of brine into the peripheries of a geothermal reservoir may gradually decline non-condensable gas (NCG) concentration in the reservoir fluid during the operation of geothermal power plants. As a result, gradually decreasing gas emissions can be observed. In this study, we use separator data to calculate produced CO2 amount in the reservoir fluid. The data used is from the Alaşehir geothermal area that is certainly not the one and only target for geothermal production in Turkey. Data obtained from 7 wells covering two years of production showed that reinjection of gas free brine into the peripheries of the geothermal reservoir declined CO2 concentration in the reservoir fluid. It has also been observed that the commissioning of neighbor power plants has a significant effect on the produced CO2 amount.

Subject Keywords

NCG, Ideal Gas Law, CO2, Alaşehir (Turkey)

URI

https://pangea.stanford.edu/ERE/db/WGC/mobile/mSchedule.php
https://hdl.handle.net/11511/95995
https://pangea.stanford.edu/ERE/db/WGC/papers/WGC/2020/05001.pdf

Conference Name

World Geothermal Congress 2020+1

Collections

Department of Petroleum and Natural Gas Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Numerical reservoir simulation of Alaşehir geothermal field Aydın, Hakkı; Akın, Serhat (null; 2020-02-10) Use of a comprehensive reservoir simulation is essential for an effective geothermal reservoir management. TOUGH2 has become a widely used simulator for this purpose. In this study, one of the most exploited geothermal fields in Turkey, Alaşehir geothermal field has been modeled by using TOUGH2 reservoir simulator. The study includes more than 100 wells, which are operated by 7 different developers. The total installed capacity of geothermal power plants in the field is 212 MWe, but additional capacity (98 ...
Modelling reinjection of two-phase non-condensable gases and water in geothermal wells Leontidis, Vlasios; Niknam, Pouriya H.; Durgut, Ismail; Talluri, Lorenzo; Manfrida, Giampaolo; Fiaschi, Daniele; Akın, Serhat; Gainville, Martin (2023-03-01) Steam production from high enthalpy geothermal systems is frequently accompanied by the emission of non-condensable gases (NCGs), initially dissolved in the liquid phase or mixed in the vapour phase at depth in the reservoir. Capturing and reinjecting geothermal gases (CO2, CH4, NH3, H2S, H2, …) together with condensed steam leads to a significant improvement of the environmental profile of geothermal power systems and helps with reservoir recharge and pressure support. Nowadays, there are several ongoing p...
Estimation of the formation temperature from the inlet and outlet mud temperatures while drilling geothermal formations Tekin, Sema; Akın, Serhat; Department of Petroleum and Natural Gas Engineering (2010) Formation temperature is an important parameter in geothermal drilling since it affects all the components of the system such as drilling fluid, drilling operations and equipment through mud temperatures. The main objective of this study is to estimate the formation temperatures of five geothermal wells in Germencik-Ömerbeyli geothermal field by using inlet and outlet mud temperatures obtained during drilling. For this purpose, GTEMP, a wellbore thermal simulation model is used to simulate the process of dr...
Kinetic Analysis of Methane Hydrate Formation with Butterfly Turbine Impellers Longinos, Sotirios Nik.; Longinou, Dionisia Dimitra; Myrzakhmetova, Nurbala; Akimbayeva, Nazgul; Zhursumbaeva, Mariamkul; Abdiyev, Kaldibek; Toktarbay, Zhexenbek; Parlaktuna, Mahmut (2022-07-01) Heat generation during gas hydrate formation is an important problem because it reduces the amount of water and gas that become gas hydrates. In this research work, we present a new design of an impeller to be used for hydrate formation and to overcome this concern by following the hydrodynamic literature. CH4 hydrate formation experiments were performed in a 5.7 L continuously stirred tank reactor using a butterfly turbine (BT) impeller with no baffle (NB), full baffle (FB), half baffle (HB), and surface b...
Carbon dioxide injection field pilot in umurlu geothermal field, Turkey Yücetaş, İsmet; Ergiçay, Nevzat; Akın, Serhat (null; 2018-01-01) The Umurlu geothermal reservoir located in Buyuk Menderes Graben, Turkey initially contained around 2% by weight CO_2 dissolved in geothermal reservoir fluid. The produced CO_2 rate declined over one year of production time due to dilution of reservoir gas by degassed injectate. Since CO_2 has a considerable role on Umurlu reservoir performance and energy production, produced non-condensable gas (NCG) has been injected simultaneously with colder degassed injectate from an injection well for the last two mon...

Citation Formats

S. Akın, H. Aydın, and T. AKIN, “CO2 Decline in Alaşehir (Turkey) Geothermal Reservoir,” presented at the World Geothermal Congress 2020+1, Reykjavik, İzlanda, 2021, Accessed: 00, 2022. [Online]. Available: https://pangea.stanford.edu/ERE/db/WGC/mobile/mSchedule.php.