«Oilfield engineering»

Efficiency of production of oil reserves in a reservoir homogeneous in permeability when changing the operating mode of the producing well

UDC: 622.276.58
DOI: 10.33285/0207-2351-2023-3(651)-25-30

Authors:

¹ Institute of Oil and Gas, Ufa State Petroleum Technological University (branch in the city of Oktyabrsky), Oktyabrsky, Republic Bashkortostan, Russia

Keywords: operating mode, oil production, homogeneous reservoir, productive formations, forced fluid extraction

Annotation:

Currently, forced fluid recovery (FOF) as a method of increasing oil recovery is widely used in the development of viscous and high-viscosity oil deposits. As practice shows, not all wells respond positively to forcing fluid withdrawals, i. e. the effect of the event is ambiguous. In the article, on the basis of model calculations, it is investigated under what conditions the use of the FOG will be effective. It has been found that an increase in the flow rate of a production well can be considered as a method of intensification only in the development of double-permeability reservoirs in the Newtonian regime of oil flow; in the development of oil deposits with structural and mechanical properties, FOL allows to increase the initial recoverable reserves; the use of FOL in the development of a homogeneous high-permeability pore reservoir, despite the formal effect (increase in oil production), in the long term leads to a deterioration in the quality of oil displacement (an increase in the proportion of water for the same produced volume of fluid) and, accordingly, to a decrease in the amount of drained recoverable oil reserves.

Bibliography:

1. Al’mukhametova E.M. Rezul’taty primeneniya tekhnologii nestatsionarnogo zavodneniya s izmeneniem napravleniya fil’tratsionnykh potokov na uchastke zalezhi vysokovyazkoy nefti pervogo ekspluatatsionnogo ob"ekta mestorozhdeniya Severnye Buzachi // Problemy sbora, podgotovki i transporta nefti i nefteproduktov. – 2015. – № 3(101). – S. 20–27.

2. Ispol’zovanie obobshchennoy matematicheskoy modeli kapillyarnykh krivykh dlya polucheniya analiticheskikh svyazey mezhdu porometricheskimi kharakteristikami plastov-kollektorov Zapadnoy Sibiri / R.T. Akhmetov, V.V. Mukhametshin, L.S. Kuleshova [i dr.] // Geologiya, geofizika i razrabotka neftyanykh i gazovykh mestorozhdeniy. – 2020. – № 7(343). – S. 49–54. – DOI: 10.30713/2413-5011-2020-7(343)-49-54

3. Akhmetov R.T., Andreev A.V., Mukhametshin V.V. Metodika prognoza ostatochnoy neftenasyshchennosti i koeffitsienta vytesneniya po dannym geofizicheskikh issledovaniy dlya otsenki effektivnosti primeneniya nanotekhnologiy // Nanotekhnologii v stroitel’stve: nauchnyy internet-zhurnal. – 2017. – T. 9, № 5. – S. 116–133.

4. Vladimirov I.V., Veliev E.M., Al’mukhametova E.M. Primenenie nestatsionarnogo zavodneniya v odnorodnom po pronitsaemosti kollektore, nasyshchennom vysokovyazkoy neft’yu // Energoeffektivnost’. Problemy i resheniya: materialy XIV Mezhdunar.-prakticheskoy konf. Institut problem transporta energoresursov. – 2014. – S. 50–52.

5. Zeygman Yu.V., Mukhametshin V.V. Obosnovanie sootvetstviya sistem zavodneniya osobennostyam geologicheskogo stroeniya zalezhey // Neftepromyslovoe delo. – 2009. – № 5. – S. 10–12.

6. Vliyanie kompleksnoy tekhnologii na effektivnost’ nefteotdachi plasta / T.Yu. Yusifov, I.G. Fattakhov, E.Yu. Yusifov [i dr.] // Sovremennye problemy nauki i obrazovaniya. – 2015. – № 1-1. – S. 302.

7. Korobeynikov A.F. Teoreticheskie osnovy modelirovaniya mestorozhdeniy poleznykh iskopaemykh: ucheb. dlya vuzov. – Tomsk: Izd-vo TPU, 2009. – S. 5–9.

8. Vladimirov I.V., Pichugin O.N., Gorshkov A.V. Opyt primeneniya tekhnologiy nestatsionarnogo zavodneniya na zalezhakh vysokovyazkoy nefti mestorozhdeniya Severnye Buzachi // Neftepromyslovoe delo. – 2013. – № 11. – S. 46–52.

9. Gidrodinamicheskoe modelirovanie – osnova analiza, proektirovaniya i monitoringa razrabotki mestorozhdeniy / V.P. Mangazeev, T.F. Manapov, S.A. Kondarattsev [i dr.] // Vestnik inzhiniringovogo tsentra YuKOS. – 2001. – № 2. – S. 30–37.

10. Abasov M.T. Vliyanie plotnosti setki skvazhin na nefteotdachu // Neft. khoz-vo. – 2005. – № 9. – S. 90–92.

11. Zakirov S.N. Analiz problemy "plotnost’ setki skvazhin – nefteotdacha". – M.: Graal’, 2002. – 314 s.

12. Novikov Yu.N. K obosnovaniyu optimal’nogo znacheniya shaga ekspluatatsionnoy setki dlya pereotsenki zapasov mestorozhdeniy neraspredelennogo fonda nedr // Neftegazovaya geologiya. Teoriya i praktika. – 2009. – № 4. – S. 86–92.