«Oilfield engineering»

Water-flooding optimal strategy at low carboniferous deposits

UDC: 622.276.43
DOI: 10.33285/0207-2351-2022-7(643)-5-12

Authors:

¹ Ufa State Petroleum Technical University (branch in the City of Oktyabrsky), Oktyabrsky, Republic of Bashkortostan, Russia
² Tatneft, Almetyevsk, Republic of Tatarstan, Russia

Keywords: reservoir pressure maintenance system, forecast, modeling, water-flooding, optimization calculations, reservoir pressure

Annotation:

One of the key tasks for improving the technical-economic indicators of deposits development is the organization of an optimal water-flooding strategy. This task varies at different stages of development. If at the initial stages more attention is paid to maintaining reservoir pressure and maximizing oil recovery, then at the later stages of deposits development, the main aims of optimizing the reservoir pressure maintenance system are reduction of water-flooding and injection volumes without oil production decrease. The article considers the oil multi-layer, complicatedly-composed deposit with oil stocks in terrigenous and carbon deposits. When considering the reservoir pressure maintenance system, compensation dynamics according to the history of development, dynamics of reservoir and bottomhole pressures were analyzed, isobar maps were built, injection wells analysis of the impact of injection wells was additionally carried out using correlation dependencies. Further, taking into account the recommended measures, multivariate calculations were carried out on a hydrodynamic model to find the optimal injection volumes. Changing the operating modes of injection wells makes it possible to achieve both a significant reduction of water production and an increase of oil production. The use of the hydrodynamic model allowed selecting such injection volumes at which it is possible to decrease the water-flooding of the produced product with close reservoir pressure dynamics as compared with the basic case.

Bibliography:

1. Timofeev O.V., Gladkikh K.D. K voprosu otsenki effektivnosti sistemy zavodneniya zalezhi nefti (na primere Dorokhovskoy gruppy mestorozhdeniy) // Problemy razrabotki mestorozhdeniy uglevodorodnykh i rudnykh poleznykh iskopaemykh. – 2020. – T. 2. – S. 431–437.

2. Iktisanov V.A. Metod otsenki effektivnosti raboty nagnetatel’nykh skvazhin // Neftepromyslovoe delo. – 2020. – № 1(613). – S. 32–35. – DOI: 10.30713/0207-2351-2020-1(613)-32-35

3. Polyakova N.I., Maksimova Yu.A., Zyatikov P.N. Kompleksnyy podkhod k primeneniyu metodov analiza effektivnosti sistemy zavodneniya neftyanykh plastov // Izv. Tomskogo politekhnicheskogo un-ta. Inzhiniring georesursov. – 2020. – T. 331, № 10.

4. Bakirov I.I., Bakirov A.I., Bakirov I.M. Izuchenie effektivnosti razrabotki zavodneniem karbonatnykh otlozheniy // Neftyanaya provintsiya. – 2019. – № 4(20). – S. 172–183.

5. Agleshov R.M. Regulirovanie zavodneniya dlya povysheniya effektivnosti sistemy podderzhaniya plastovogo davleniya // Neftepromyslovoe delo. – 2018. – № 5. – S. 32–39. – DOI: 10.30713/0207-2351-2018-5-32-39

6. Pyatibratov P.V., Zammam M., Turovskaya E.A. Optimizatsiya zavodneniya na osnove modelirovaniya liniy toka // Oborudovanie i tekhnologii dlya neftegazovogo kompleksa. – 2021. – № 4(124). – S. 37–44. – DOI: 10.33285/1999-6934-2021-4(124)-37-44

7. Tekhnologiya optimizatsii fonda skvazhin sistemy podderzhaniya plastovogo davleniya na osnove gibridnogo modelirovaniya / R.R. Yaubatyrov, V.S. Kotezhekov, V.M. Babin, E.E. Nuzhin // PROneft’. Professional’no o nefti. – 2019. – № 2(12). – S. 30–36.

8. Raschet optimal’noy priemistosti nagnetatel’nykh skvazhin v usloviyakh ploshchadnoy sistemy zavodneniya / L.A. Vaganov, A.Yu. Sentsov, A.A. Ankudinov, N.S. Polyakova // Izv. vuzov. Neft’ i gaz. – 2017. – № 6. – S. 63–67.

9. Methodological approaches to increasing the flooding system efficiency at the later stage of reservoir development / V. Grishchenko, I.M. Tsiklis, V.S. Mukhametshin, R.F. Yakupov // SOCAR Proceedings. – 2021.

10. Analiz raboty nagnetatel’nykh skvazhin Srednebotuobinskogo mestorozhdeniya / A.V. Kobyashev, A.V. Mandrugin, R.R. Valeev [i dr.] // Neft. khoz-vo. – 2019. – № 6. – S. 59–61. – DOI: 10.24887/0028-2448-2019-6-59-61

11. Optimization of Smart Water Flooding in Carbonate Reservoir / Fani Mahmood, Al-Hadrami Hamoud, Pourafshary Peyman, Vakili-Nezhaad Gholamreza, and Nader Mosavat // Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, Abu Dhabi, UAE, November 2018.

12. Lushpeev V.A., Margarit A. Optimization of oil field development process based on existing forecast model / J. of Applied Engineering science. – 2018. – T. 16, № 3. – P. 391–397.

13. Research on Intelligent Analysis Approach of Waterflooding for Mature Fields / J. Deli, Z. Jiqun, W. Quanbin // 33rd Chinese Control and Decision Conference (CCDC). – 2021. – Р. 2378–2383.

14. Fattakhov I.G. Rassmotrenie izmenchivosti tsiklicheskoy zakachki na primere Stakhanovskogo neftyanogo mestorozhdeniya // Sovremennye fundamental’nye i prikladnye issledovaniya. – 2012. – № 4(7). – S. 70–73.

15. Fattakhov I.G., Kadyrov R.R. Ispol’zovanie statisticheskikh metodov dlya analiza effektivnosti i problem nestatsionarnogo zavodneniya // Inzhener-neftyanik. – 2013. – № 4. – S. 5–9.

16. Shapkov E.N., Savenok O.V. Prognozirovanie pokazateley razrabotki polevogo neftyanogo mestorozhdeniya na osnove analiza metodov obobshchennykh kharakteristik vytesneniya // Nauka i tekhnika v gazovoy promyshlennosti. – 2021. – № 1(85). – S. 22–48.

17. Bakhtizin R.N., Fattakhov I.G., Gimaev R.G. Issledovanie sostoyaniya proizvoditel’nosti nestatsionarnogo zavodneniya // Neftegazovoe delo. – 2013. – T. 11, № 4. – S. 68–72.