Title: CO₂ sequestration potential in the near-future depleted CO₂ reservoir: Dodan CO₂ field, Turkey

Authors: Sukru Merey

Addresses: Department of Petroleum and Natural Gas Engineering, Batman University, Batman, Turkey

Abstract: Dodan field is a natural CO₂ reservoir located in Siirt, Turkey. Since 1986, CO₂ produced from Dodan field has been injected into Bati Raman heavy oil field of Turkey in Batman to make heavy oil mobile in porous media. CO₂ sequestration into aquifers and depleted reservoirs is widely investigated to decrease CO₂ emission and to slow down global warming. In this study, it is aimed to investigate whether it is possible to inject CO₂ into Dodan field after depletion. The source of CO₂ to be injected might be supplied from cement factories near this field. CO₂ injection into Dodan field was simulated by using TOUGH+RealGasBrine. According to the output results of these simulations, CO₂ injection is much more difficult and slow processes compared to CO₂ production. Due to water influx into the reservoirs in Dodan field during CO₂ production, approximately 61.2% of initial CO₂ in-place (6.74 MMMSCM) might be injected into Dodan field in a long-term period. [Received: March 28, 2020; Accepted: November 4, 2020]

Keywords: CO₂ sequestration; CO₂ flow; porous media; greenhouse emission; Dodan field; Turkey.

DOI: 10.1504/IJOGCT.2022.119332

International Journal of Oil, Gas and Coal Technology, 2022 Vol.29 No.1, pp.1 - 11

Received: 28 Mar 2020
Accepted: 04 Nov 2020
Published online: 01 Dec 2021 *

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