Water invasion performance of complex fracture-vuggy gas reservoirs based on classification modeling

Xiaobing Han, Xiaohua Tan, Xiaoping Li, Yu Pang, Liehui Zhang

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The complexity of the pore structure, spatial development, fractures, and pore distribution of fractured-vuggy carbonate reservoirs influences the water invasion dynamics of gas reservoirs, which is crucial in the dynamic research of strongly heterogeneous reservoirs. In this study, the collocation relationship of pore-vuggy fractures is described by the quantitative characterization of their attribute parameters. The discrete fracture network model is used to match and construct the fractures in different modes. The distribution classification method is used to model three-dimensional geological reservoirs in terms of their geometric and attribute characteristics. Bottom-water and edge-water gas reservoirs are constructed separately using numerical simulation, and the dynamic characteristics of water invasion are described. The results show that the proposed method is suitable for the geological modeling of fractured-vuggy gas reservoirs with strong heterogeneity and complexity. The modeling accuracy is improved because the gas reservoir heterogeneity and water invasion’s dynamic characteristics can be described accurately. Six stages of water invasion are identified from the numerical simulation of water invasion. This method provides theoretical guidance for the study of heterogeneous gas reservoirs with water.

Cited as: Han, X., Tan, X., Li, X., Pang, Y., Zhang, L. Water invasion performance of complex fracture-vuggy gas reservoirs based on classification modeling. Advances in Geo-Energy Research, 2021, 5(2): 222-232, doi: 10.46690/ager.2021.02.11


Fractured-vuggy gas reservoir, discrete fracture network, distribution classification, water invasion

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Akbarifard, M. G., Azdarpour, A., Aboosadi, Z. A., et al. Numerical simulation of water production process and spontaneous imbibition in a fractured gas reservoir-A case study on homa gas field. Journal Natural Gas Science and Engineering, 2020, 83: 103603.

Espinola-Gonzalez, O., Guzman-Arevalo, J. D., Ramirez-Cuacenetl, J. R., et al. Evaluation of exploitation strategies for gas reservoirs with water influx in the Miocene formation of the Veracruz Basin through numerical simulation to optimise the recovery factor. Paper SPE 180777 Presented at SPE Trinidad and Tobago Section Energy Resources Conference, Port at Spain, Trinidad and Tobago, 13-15 June, 2016.

Fan, M., Dalton, L. E., McClure, J., et al. Comprehensive study of the interactions between the critical dimensionless numbers associated with multiphase flow in 3D porous media. Fuel, 2019, 252: 522-533.

Golparvar, A., Zhou, Y., Wu, K., et al. A comprehensive review of pore scale modeling methodologies for multiphase flow in porous media. Advances in Geo-Energy Research, 2018, 2(4): 418-440.

Gomes, J. S., Ribeiro, M. T., Deeb, M. E., et al. Lessons learned from static reservoir modelling on complex carbonate fields, onshore UAE. Paper SPE 88780 Presented at Abu Dhabi International Conference and Exhibition, Abu Dhabi, United Arab Emirates, 10-13 October, 2004.

Kossack, C. A. Simulation of gas/oil displacements in vuggy and fractured reservoirs. Paper SPE 101674 Presented at SPE Annual Technical Conference and Exhibition, San Antonio, Texas, 24-27 September, 2006.

Li, X., Fu, X., Tian, J., et al. Heterogeneities of seepage pore and fracture of high volatile bituminous coal core: Implications on water invasion degree. Journal Petroleum Science and Engineering, 2019, 183: 106409.

Lyu, X., Liu, Z., Hou, J., et al. Mechanism and influencing factors of EOR by N2 injection in fractured-vuggy carbonate reservoirs. Journal Natural Gas Science and Engineering, 2017, 40: 226-235.

Ni, G., Cheng, W., Lin, B., et al. Experimental study on removing water blocking effect (WBE) from two aspects of the pore negative pressure and surfactants. Journal Natural Gas Science and Engineering, 2016, 31: 596-602.

Wang, B., Liu, X., Sima, L. Grading evaluation and prediction of fracture-cavity reservoirs in Cambrian Longwangmiao Formation of Moxi area, Sichuan Basin, SW China. Petroleum Exploration and Development, 2019a, 46(2): 301-313.

Wang, J., Zhao, W., Liu, H., et al. Inter-well interferences and their influencing factors during water flooding in fractured-vuggy carbonate reservoirs. Petroleum Exploration Development, 2020, 47(5): 1062-1073.

Wang, Y., Hou, J., Tang, Y., et al. Effect of vug filling on oil-displacement efficiency in carbonate fractured-vuggy reservoir by natural bottom-water drive: A conceptual model experiment. Journal Petroleum Science and Engineering, 2019b, 174: 1113-1126.

Wu, Y.-S., Yuan, D., Kang, Z., et al. A multiple-continuum model for simulating single-phase and multiphase flow in naturally fractured vuggy reservoirs. Journal Petroleum Science and Engineering, 2011, 78(1): 13-22.

Xu, Z., Zhou, X., Zhang, X., et al. Pore-scale investigationon the thermochemical process in uniform and gradient porous media considering immiscible phase. International Communications in Heat Mass Transfer, 2020, 116: 104725.

Yuan, C., Pu, W., Jin, F., et al. Performance of oil-based cement slurry as a selective water-plugging agent in high-temperature and high-salinity cave-fractured carbonate reservoirs. Industrial & Engineering Chemistry Research, 2014, 53(14): 6137-6149.

Zhang, L.-H., Feng, G.-Q., Li, X.-P., et al. Water break through simulation in naturally fractured gas reservoirs with water drive. Journal of Hydrodynamics, 2005, 17(4): 466-472.

Zhou, X., Xu, Z., Xia, Y., et al. Pore-scale investigation on reactive flow in porous media with immiscible phase using lattice Boltzmann method. Journal Petroleum Science and Engineering, 2020, 191: 107224.

DOI: https://doi.org/10.46690/ager.2021.02.11


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