Increment-Dimensional Precise Integration Method of Oil-Water Coupling Flows in a Low Permeability Reservoir with Capillary Pressure

Abstract:

The simulation of two-phase oil-water coupling flows in a low permeability reservoir with capillary pressure and start-up pressure gradient was carried out. First of all, the state equations with all the oil pressures at grid nodes were established based on lump-centre finite difference method. Secondly, the recurrence formulae of all the oil pressures and water saturations at grid nodes were built up according to IDPIM and an explicit difference method, respectively. Finally, the simulation of two-phase oil-water coupling flows for a typical five point area water injection as an example was carried out. Simulating results show that capillary pressure has a little effect on moisture rate and oil production, but startup pressure gradients have an outstanding effect on them. Therefore the existence of startup pressure gradients will enhance the difficulty of oil development.

• Periodical: Applied Mechanics and Materials (Volumes 580-583)
• Pages: 2883-2889
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.580-583.2883
• Online since: July 2014
• Authors: Fu Liang Mei, Gui Ling Li
• Keywords: Capillary Force, Increment-Dimensional Precise Integration Method (IDPIM), Low-Permeability Reservoir, Startup Pressure Gradient, State Equation, Two-Phase Flow

References

[1] F.H. Li , Liu Ci-qun: Well Testing (in Chinese) (1997).

[2] Y.C. Guo D.T. Lu,L.X. Ma: Journal of Hydrodynamics, Ser. A (in Chinese) (2004).

[3] Y.C. Guo Q.H. Zeng Z.X. Wang: Engineering Mechanics(in Chinese) (2006).

[4] S.Q. Cheng, M.Z. Chen: Shiyou Kantan Yu Kaifa(in Chinese)(1998).

[5] F.Q. Song C.Q. Liu: Journal of the University of Petroluim(in Chinese)(1999).

[6] H.M. Shu, Z.Q. Zhang C.W. Cui: ACTA PETROLEI SINICA(in Chinese(2007).

[7] S.Y. Zhang, Z.C. Deng: Chinese Journal of Computational Mechanics(in Chinese)(2003).

[8] F.L. Mei Industrial Construction (in Chinese) (2006).

[9] W.X. Zhong: Chinese Journal of Computational Mechanics(in Chinese)(1994).

[10] S.W. Rao C.C. He,F. Zhao: Computer Application of Petroleum(in Chinese) (2008).