R.Kh. Nizaev, R.R. Khasanov
DOI: https://doi.org/10.25689/NP.2024.1.98-106
Abstract
Determination of the change in the mobile oil reserves of the object during the development process, hence, the residual oil saturation parameter (SOWCR), is an important task for correct determination of technological indicators of development during field operation. Correctness of determination of this parameter depending on the development time influences the final value of oil recovery factor.
To determine the influence of the development process on the changes in the mobile oil reserves of the object on the residual oil saturation parameters, 584 core studies for 21 wells were analyzed. As a rule, determination of the residual oil saturation parameter by means of core studies requires specification of the time of development of the object of study: core material may be taken in different periods of the object development. Based on the analysis of core material from waterflooded areas of one of the fields of the Republic of Tatarstan, it can be noted that the residual oil saturation value is higher in the zones less covered by waterflooding. In zones covered by waterflooding (with large injection volumes at injection wells) the residual oil saturation values are lower. From the analysis of changes in residual oil saturation values in waterflooded zones, it is necessary to take into account the increase in recoverable oil reserves during development in waterflooded areas of the field.
References
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Authors
R.K. Nizaev, Dr.Sc., Professor of Chair of Oil and Gas Fields Development and Operation, Higher School of Petroleum (HSP), TatNIPIneft Institute PJSC Tatneft
2, Lenin st., Almetyevsk, 423462, Russian Federation
E-mail: nizaev@tatnipi.ru
R.R. Khasanov, PhD Candidate, Chair of Oil and Gas Fields Development and Operation, Higher School of Petroleum (HSP), Center of Technological Development PJSC Tatneft
2, Lenin st., Almetyevsk, 423462, Russian Federation
E-mail: Khasanov@tatneft.ru
For citation:
R.Kh. Nizaev, R.R. Khasanov Issledovaniy po opredeleniyu ostatochnoy neftenasyshchennosti v zavodnennykh zonakh [Study on determination of residual oil saturation in waterflooded zones]. Neftyanaya Provintsiya, No. 1(37), 2024. pp. 98-106. DOI https://doi.org/10.25689/NP.2024.1.98-106.
EDN IGJZDK (in Russian)