Evolution of rock pore structure and physical properties due to acidification: Recent advances and future perspectives

Authors

  • Fangzhou Zhao State Key Laboratory of Petroleum Resources and Engineering, China University of Petroleum, Beijing, 102249, P. R. China
  • Xinghe Jiao State Key Laboratory of Petroleum Resources and Engineering, China University of Petroleum, Beijing, 102249, P. R. China
  • Xuanzhe Xia State Key Laboratory of Petroleum Resources and Engineering, China University of Petroleum, Beijing, 102249, P. R. China
  • Sai Xu Oil & Gas Technology Research Institute, Changqing Oilfield Company, CNPC, Xi’an 710018, P. R. China
  • Lei Sun 1.School of Civil Engineering, Wuhan University, Wuhan 430072, P. R. China 2.Department of Civil & Mineral Engineering, University of Toronto, Toronto M5S 1A4, Canada
  • Yuxuan Xia* State Key Laboratory of Petroleum Resources and Engineering, China University of Petroleum, Beijing, 102249, P. R. China (Email: xiayx@cup.edu.cn)

Keywords:

Acidification, pore structure, physical properties, carbonate rock, shale

Abstract

Acidification is crucial to oil and gas development, which effectively improves reservoir development by reacting acid with some minerals in the rock. There are a large number of minerals that react with acid in carbonate and shale reservoirs. Acidification has a good effect in these two reservoirs, so it is necessary to conduct multi-scale research on the acidification process. This work briefly introduces the evolution characteristics and factors affecting acidification on reservoir pore structure and physical properties, and also analyzes their similarities and differences. Meanwhile, the application status of the acidification method is also discussed. Finally, the challenges and opportunities faced by shale acidification are discussed, aiming to provide new insights into the development of acidizing technology.

Document Type: Perspective

Cited as: Zhao, F., Jiao, X., Xia, X., Xu, S., Sun, L., Xia, Y. Evolution of rock pore structure and physical properties due to acidification: Recent advances and future perspectives. Advances in Geo-Energy Research, 2024, 14(3): 238-240. https://doi.org/10.46690/ager.2024.12.08

References

Ghommem, M., Zhao, W., Dyer, S., et al. Carbonate acidizing: Modeling, analysis, and characterization of wormhole formation and propagation. Journal of Petroleum Science and Engineering, 2015, 131: 18-33.

Gou, B., Xu, K., Wang, C., et al. Experimental and modeling investigation on artificial fracture conductivity for hybrid fracturing in a deep carbonate reservoir using an acid and a proppant. Energy & Fuels, 2024, 38(9): 7801-7816.

Huang, B., Hou, M., Zhao, X., et al. Experimental investigation on the reformation and strength weakening of hard limestone by acidizing. International Journal of Mining Science and Technology, 2022, 32(5): 965-979.

Khalil, R., Emadi, H., Altawati, F. Investigating the effect of matrix acidizing injection pressure on carbonate-rich marcellus shale core samples: An experimental study. Journal of Petroleum Exploration and Production Technology, 2020, 11(2): 725-734.

Kiani, S., Jafari, S., Apourvari, S. N., et al. Simulation study of wormhole formation and propagation during matrix acidizing of carbonate reservoirs using a novel in-situ generated hydrochloric acid. Advances in Geo-Energy Research, 2021, 5(1): 64-74.

Li, N., Dai, J., Li, J., et al. Application status and research progress of shale reservoirs acid treatment technology. Natural Gas Industry B, 2016, 3(2): 165-172.

Liu, P., Yao, J., Couples, G. D., et al. Modeling and simulation of wormhole formation during acidization of fractured carbonate rocks. Journal of Petroleum Science and Engineering, 2017, 154: 284-301.

Qi, N., Li, B., Chen, G., et al. Optimum fluid injection rate in carbonate acidizing based on acid dissolution morphology analysis. Energy & Fuels, 2017, 31(12): 13448-13453.

Sheng, M., Khan, W. A., Cheng, S., et al. Characteristics of micro-fracturing in shales induced by dilute acid. Journal of Natural Gas Science and Engineering, 2021, 88: 103855.

Singh, R., Tong, S., Panthi, K., et al. Stimulation of calcite-rich shales using nanoparticle-microencapsulated acids. SPE Journal, 2019, 24(6): 2671-2680.

Teklu, T. W., Abass, H. H., Hanashmooni, R., et al. Experimental investigation of acid imbibition on matrix and fractured carbonate rich shales. Journal of Natural Gas Science and Engineering, 2017, 45: 706-725.

Wu, W., Sharma, M. M. Acid fracturing in shales: Effect of dilute acid on properties and pore structure of shale. SPE Production & Operations, 2016, 32(1): 51-63.

Xu, P., Sheng, M., Lin, T., et al. Influences of rock microstructure on acid dissolution at a dolomite surface. Geothermics, 2022, 100: 102324.

Xu, S., Xia, Y., Lu, M., et al. Fractal perspective on the effects of the acid-rock interaction on the shale pore structure. Energy & Fuels, 2023, 37(9): 6610-6618.

Xu, S., Zhou, S., Zhou, J., et al. Multiscale pore structure evolution of Longmaxi shale induced by acid treatment. SPE Journal, 2024, 28(2): 831-844.

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Published

2024-12-03

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