Vol. 337 No. 6 (2026)
DOI https://doi.org/10.18799/24131830/2026/6/5586
Water injection performance and incremental oil recovery in the Lower Kura Depression: a case study of the Mishovdag field
Relevance. This study investigates the potential for incremental oil recovery through water injection in selected wells in the Lower Kura Depression (in the case of Mishovdag field). The evaluation was carried out using a simplified material balance-based approach, which considers injected water volumes, displacement efficiency (Ed≈26%), and oil density (ρoil≈886 kg/m³). Aim. To maintain or increase reservoir pressure and to improve oil recovery. Methods and results. For each well, the additional oil production resulting from water injection was calculated in metric tons, providing a quantitative assessment of the method effectiveness. The injected water volumes varied from 1.87 to 2.77 million cubic meters per well, leading to estimated incremental production ranging from approximately 432 to 639 thousand tons. These results demonstrate that water injection can significantly enhance oil recovery in the studied wells, even under simplified assumptions. Although the calculations do not account for reservoir heterogeneity, fracture networks, or non-uniform water distribution, they provide an important preliminary estimate of recovery potential. Conclusions. The study highlights the relevance of integrating operational data with displacement efficiency parameters to assess secondary recovery performance. Overall, the findings confirm that water injection is a viable and effective method to increase production and optimize recovery strategies in complex reservoirs of the Mishovdag field.
For citation: Ganbarova Sh.A. Water injection performance and incremental oil recovery in the Lower Kura Depression: a case study of the Mishovdag field. Bulletin of the Tomsk Polytechnic University. Geo Assets Engineering, 2026, vol. 337, no. 6, pp. 56-64. https://doi.org/10.18799/24131830/2026/6/5586
Keywords:
displacement efficiency, reservoir heterogeneity, water injection, recovery, injected water volumes, well
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