Impact evaluation of various approaches for justification of initial distribution of fluids and their mobility on the results of reservoir simulation modeling

Authors: S.V. Stepanov, D.N. Glumov (TNNC LLC, RF, Tyumen)

Key words: relative phase permeability, capillary pressure curve, Leverett function, connate water saturation, critical water saturation, residual oil saturation, transition zone, reservoir simulation.

The article reviews the application of various methods to assign initial distribution of water and oil and their end points. A new method to justify capillary pressure curves is proposed for reservoir simulation modeling. It is demonstrated that the application of different methods to justify initial distribution of fluids and their mobility has a significant impact on calculation of development parameters.
References
1. Stepanov S.V., Shabarov A.B., Matematicheskoe modelirovanie – Mathematical Models and Computer Simulations, 2003, V. 15, no. 9, pp. 88–98.
2. Stepanov S.V., Efimov P.A., Neftyanoe khozyaystvo – Oil Industry, 2006, no.
7, pp. 84-86.
3. Stepanov S.V., Neftyanoe khozyaystvo – Oil Industry, 2008, no. 8, pp. 72-74.
4. Collins R.E., Flow of fluids through porous material, Reinhold, New York, 1961.
5. Pentland C.H., Itsekiri E., Mansoori S.Al, Iglauer S., Meauserment of nonwettingphase trapping in sandpacks, SPE 115697, 2010.
6. Byrnes A, Bhattacharya S., Influence of initial and residual oil saturation and
relative permeability on recovery from transition zone reservoirs in shallow
shelf carbonates, SPE 99736, 2006.
7. OST 39-235-89, Neft'. Metod opredeleniya fazovykh pronitsaemostey v laboratornykh usloviyakh pri sovmestnoy statsionarnoy fil'tratsii (Oil. Method for
determination of phase permeability in the laboratory at the joint stationary
filtration), Moscow, Minnefteprom, 1989. – 35 s.
8. Doroginitskaya L.M., Nenakhov Yu.Ya., Anashkin A.R. et al., Proceedings of
School-Seminar “Fizika neftyanogo plasta” (Physics of the oil reservoir), 20-24
May 2002, pp. 75-80.
9. Metodicheskie rekomendatsii po podschetu geologicheskikh zapasov
nefti i gaza ob"emnym metodom (Guidelines on the calculation of geological
reserves of oil and gas by volumetric method): edited by Petersil'e V.I.,
Poroskun V.I., Yatsenko G.G., Moscow - Tver': Publ. of VNIGNI, NPTs “Tver'geofizika”, 2003, 270 p.

Key words: relative phase permeability, capillary pressure curve, Leverett function, connate water saturation, critical water saturation, residual oil saturation, transition zone, reservoir simulation.

The article reviews the application of various methods to assign initial distribution of water and oil and their end points. A new method to justify capillary pressure curves is proposed for reservoir simulation modeling. It is demonstrated that the application of different methods to justify initial distribution of fluids and their mobility has a significant impact on calculation of development parameters.
References
1. Stepanov S.V., Shabarov A.B., Matematicheskoe modelirovanie – Mathematical Models and Computer Simulations, 2003, V. 15, no. 9, pp. 88–98.
2. Stepanov S.V., Efimov P.A., Neftyanoe khozyaystvo – Oil Industry, 2006, no.
7, pp. 84-86.
3. Stepanov S.V., Neftyanoe khozyaystvo – Oil Industry, 2008, no. 8, pp. 72-74.
4. Collins R.E., Flow of fluids through porous material, Reinhold, New York, 1961.
5. Pentland C.H., Itsekiri E., Mansoori S.Al, Iglauer S., Meauserment of nonwettingphase trapping in sandpacks, SPE 115697, 2010.
6. Byrnes A, Bhattacharya S., Influence of initial and residual oil saturation and
relative permeability on recovery from transition zone reservoirs in shallow
shelf carbonates, SPE 99736, 2006.
7. OST 39-235-89, Neft'. Metod opredeleniya fazovykh pronitsaemostey v laboratornykh usloviyakh pri sovmestnoy statsionarnoy fil'tratsii (Oil. Method for
determination of phase permeability in the laboratory at the joint stationary
filtration), Moscow, Minnefteprom, 1989. – 35 s.
8. Doroginitskaya L.M., Nenakhov Yu.Ya., Anashkin A.R. et al., Proceedings of
School-Seminar “Fizika neftyanogo plasta” (Physics of the oil reservoir), 20-24
May 2002, pp. 75-80.
9. Metodicheskie rekomendatsii po podschetu geologicheskikh zapasov
nefti i gaza ob"emnym metodom (Guidelines on the calculation of geological
reserves of oil and gas by volumetric method): edited by Petersil'e V.I.,
Poroskun V.I., Yatsenko G.G., Moscow - Tver': Publ. of VNIGNI, NPTs “Tver'geofizika”, 2003, 270 p.


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