Numerical analysis of the deformational behavior of hydrocarbon reservoirs based on an improved elastoplastic constitutive model

نوع مقاله : مقاله پژوهشی

نویسندگان

Dept. of Mining, Faculty of Engineering, Tarbiat Modares University, Tehran, Iran

چکیده

The goal of the current research is to make more comprehensive the elastoplastic stresses effects and oil reservoirs behave in solid phase. These stresses are largely caused by the behavior of subsurface fluid in reservoirs. In reservoir formations, there are frequently significant spatial changes at various length scales. Additionally, a number of physical events influence the flow model in various hierarchies. To fully describe the flow and deformation concerning all of these sizes, more computing power is required. One of the principal problems in the oil field business has always been how to describe, optimize, and simulate the behavior of the solid portion of oil reservoirs. To model fluid flow in reservoirs, deformable media, and porous media, more effectively, several scales must be taken into account. This approach is difficult in different scales, and the results of the simulation's speed, accuracy, and precision indicates this. A hybrid multi-physical multi-scale model has recently been developed as a solution to this problem. The goal of the current work is to update this model to represent solid-phase deformations better. For this improvement, the model is changed into a geomechanical model with the capacity to simulate a plastic region using an integrated yield function as well as using an implicit technique to solve convergence equations concurrently. The simulation outcomes demonstrate that the improved multi-scale mixed physical model is an effective model for modelling oil reservoirs with elastoplastic deformation. This model's calculation speed and accuracy have been tested, and the results are satisfactory. In addition, this paper modeled land subsidence, which Sokolova et al. claim is impacted by a lack of reservoirs, and it fits quite well with other studies. Results have demonstrated that plastic stresses affect both the rate of oil production and the behavior of subsidence. It can be included as a safety feature for infrastructure and oil surface plants.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Numerical analysis of the deformational behavior of hydrocarbon reservoirs based on an improved elastoplastic constitutive model

نویسندگان [English]

  • Omid Roshan
  • Ehsan Taheri
Dept. of Mining, Faculty of Engineering, Tarbiat Modares University, Tehran, Iran
چکیده [English]

The goal of the current research is to make more comprehensive the elastoplastic stresses effects and oil reservoirs behave in solid phase. These stresses are largely caused by the behavior of subsurface fluid in reservoirs. In reservoir formations, there are frequently significant spatial changes at various length scales. Additionally, a number of physical events influence the flow model in various hierarchies. To fully describe the flow and deformation concerning all of these sizes, more computing power is required. One of the principal problems in the oil field business has always been how to describe, optimize, and simulate the behavior of the solid portion of oil reservoirs. To model fluid flow in reservoirs, deformable media, and porous media, more effectively, several scales must be taken into account. This approach is difficult in different scales, and the results of the simulation's speed, accuracy, and precision indicates this. A hybrid multi-physical multi-scale model has recently been developed as a solution to this problem. The goal of the current work is to update this model to represent solid-phase deformations better. For this improvement, the model is changed into a geomechanical model with the capacity to simulate a plastic region using an integrated yield function as well as using an implicit technique to solve convergence equations concurrently. The simulation outcomes demonstrate that the improved multi-scale mixed physical model is an effective model for modelling oil reservoirs with elastoplastic deformation. This model's calculation speed and accuracy have been tested, and the results are satisfactory. In addition, this paper modeled land subsidence, which Sokolova et al. claim is impacted by a lack of reservoirs, and it fits quite well with other studies. Results have demonstrated that plastic stresses affect both the rate of oil production and the behavior of subsidence. It can be included as a safety feature for infrastructure and oil surface plants.

کلیدواژه‌ها [English]

  • Multiscale
  • Plastic deformation
  • Oil reservoir
  • Porous media
  • Geomechanical model
[1]          A Abdollahipour, MF Marji, 2020, A thermo-hydromechanical displacement discontinuity method to model fractures in high-pressure, high-temperature environments, Renewable Energy 153, 1488-1503.
[2]          A Abdollahipour, MF Marji, AY Bafghi, J Gholamnejad, 2016, Time-dependent crack propagation in a poroelastic medium using a fully coupled hydromechanical displacement discontinuity method, International Journal of Fracture 199 (1), 71-87.
[3]          Abdollahipour A, Fatehi Marji M, Yarahmadi Bafghi AR,Gholamnejad J, 2016, Numerical investigation of effect of crack geometrical parameters on hydraulic fracturing process of hydrocarbon reservoirs, Journal of Mining and Environment 7 (2), 205-214.
[4]          Mohaghegh, S., Arefi, R., Ameri, S., Aminiand, K., & Nutter, R. (1996). Petroleum reservoir characterization with the aid of artificial neural networks. Journal of Petroleum Science and Engineering, 16(4), 263-274.
[5]          Durlofsky, L. J. (2003, June). Upscaling of geocellular models for reservoir flow simulation: a review of recent progress. In 7th International Forum on Reservoir Simulation Bühl/Baden-Baden, Germany (pp. 23-27).
[6]          Warren, J. E., & Price, H. S. (1961). Flow in heterogeneous porous media. Society of Petroleum Engineers Journal, 1(03), 153-169.
[7]          Taheri, E. (2013). Multi-scale modeling of oil movement in a deformable porous medium. Ph.D. thesis. Khaje Nasir Toosi University.
[8]          Jenny, P., Lee, S. H., & Tchelepi, H. A. (2005). Adaptive multiscale finite-volume method for multiphase flow and transport in porous media. Multiscale Modeling & Simulation, 3(1), 50-64.
[9]          Sokolova, I., Bastisya, M. G., & Hajibeygi, H. (2019). Multiscale finite volume method for finite-volume-based simulation of poroelasticity. Journal of Computational Physics, 379, 309-324.
[10]        Castelletto, N., Hajibeygi, H., & Tchelepi, H. A. (2017). Multiscale finite-element method for linear elastic geomechanics. Journal of Computational Physics, 331, 337-356.
[11]        Ţene, M., Wang, Y., & Hajibeygi, H. (2015). Adaptive algebraic multiscale solver for compressible flow in heterogeneous porous media. Journal of Computational Physics, 300, 679-694.
[12]        Cusini, M., Lukyanov, A. A., Natvig, J., & Hajibeygi, H. (2015). Constrained pressure residual multiscale (CPR-MS) method for fully implicit simulation of multiphase flow in porous media. Journal of Computational Physics, 299, 472-486.
[13]        Hajibeygi, H., & Tchelepi, H. A. (2014). Compositional multiscale finite-volume formulation. SPE Journal, 19(02), 316-326.
[14]        Wang, Y., Hajibeygi, H., & Tchelepi, H. A. (2016). Monotone multiscale finite volume method. Computational Geosciences, 20(3), 509-524.
[15]        Sadrnejad, S. A., Ghasemzadeh, H., & Taheri, E. (2014). Multiscale multiphysic mixed geomechanical model in deformable porous media. International Journal for Multiscale Computational Engineering, 12(6).
[16]        Taheri, E., Sadrnejad, S. A., & Ghasemzadeh, H. (2015). Multiscale geomechanical model for a deformable oil reservoir with surrounding rock effects. International journal for multiscale computational engineering, 13(6).
[17]        Moghadam, S. I., Taheri, E., Ahmadi, M., & Ghoreishian Amiri, S. A. (2022). Unified bounding surface model for monotonic and cyclic behaviour of clay and sand. Acta Geotechnica, 1-17.
[18]        Nikadat, N., Fatehi, M., & Abdollahipour, A. (2015). Numerical modelling of stress analysis around rectangular tunnels with large discontinuities (fault) by a hybridized indirect BEM. Journal of Central South University, 22(11), 4291-4299.
[19]        Sanaye Pasad, M. (2019). Modeling of oil movement in elastoplastic porous medium by multi-scale method and adaptive networking. Master’s thesis. Khaje Nasir Toosi University.
[20]        Ghoreishian, S. (2012). Hydraulic-thermal modeling of deformable black oil reservoir s. Ph.D. thesis. Khaje Nasir Toosi University.
[21]        Moghadam, S., Taheri, E., & Ahmadi, S. (2018). Modeling soil behavior using an integrated clay-sand model by Euler implicit method. 7th Iran Mining Engineering Conference and 5th Iran International Mining and Mining Industries Congress, Tehran.
[22]        Hashiguchi, K., & Chen, Z. P. (1998). Elastoplastic constitutive equation of soils with the subloading surface and the rotational hardening. International Journal for Numerical and Analytical Methods in Geomechanics, 22(3), 197-227.