Quantitative Characterization of Pore Structure of Carbonate Rocks Based on Micron-CT Technique and Its Seepage Simulation


  • Mengyuan Cheng




Carbonate rocks, Micron-CT, Pore structure, Seepage simulation.


Micron-CT technology can make up for many shortcomings of traditional rock physics experiments and provide a new platform for rock physics research. In this paper, a 3D digital core model with realistic pore structure characteristics was established using micron-CT scanning combined with advanced image processing techniques with carbonate rocks as the research object. Various morphological algorithms included in the digital core software (Avizo) are applied to quantify and characterize the pore structure of digital cores, and obtain the characteristics of total porosity, effective porosity, pore and throat equivalent radius distribution, and establish an equivalent pore network model. The absolute permeability experiment module was applied in the digital core software (Avizo) to realize the simulation of seepage on the micron scale and calculate the absolute permeability. This paper enriches the existing digital petrophysical research tools by applying digital core software (Avizo), which is of great significance to deepen the understanding of hydrocarbon storage and transport mechanisms inside the reservoir.


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Attwood D. 2006. Microscopy: Nanotomography comes of age [J]. Nature, 442(7103): 642-643.

Bai B, Zhu R K, Wu S T, Yang W J, Jeff G, Allen G, Zhang X X, Su L. 2013. Multi-scale method of Nano (Micro)-CT study on microscopic pore structure of tight sandstone of Yanchang Formation, Ordos Basin [J]. Petroleum Exploration and Development, 40(3): 329-333.

Bear J. 1972. Dynamics of fluids in porous media. Elsevier, New York.

Bera B, Mitra S K, Vick D. 2011. Understanding the micro structure of Berea Sandstone by the simultaneous use of micro-computed tomography (micro-CT) and focused ion beam-scanning electron microscopy (FIB-SEM) [J]. Micron, 42(5): 412-418.

Chalmers G R, Bustin R M, Power I M. 2012. Characterization of gas shale pore systems by porosimetry, pycnometry, surface area, and field emission scanning electron microscopy/transmission electron microscopy image analyses: Examples from the Barnett, Woodford, Haynesville, Marcellus, and Doig units [J]. AAPG Bull, 96(6): 1099-1119.

Clarkson C R, Freeman M, He L, Agamalian M, Melnichenko Y B, Mastalerz M, Bustin R M, Radliński A P, Blach T P. 2012a. Characterization of tight gas reservoir pore structure using USANS/SANS and gas adsorption analysis [J]. Fuel, 95, 371-385.

Curtis M E, Sondergeld C H, Ambrose R J, Rai C S. 2012. Microstructural investigation of gas shales in two and three dimensions using nanometer-scale resolution imaging [J]. AAPG Bull, 96(4): 665-677.

Golab A, Ward C R, Permana A, Lennox P, Botha P. 2013. High-resolution three-dimensional imaging of coal using microfocus X-ray computed tomography, with special reference to modes of mineral occurrence[J]. International Journal of Coal Geology, 113: 97-108.

Liang L X, Xiong J, Liu X J. 2015. Mineralogical,microstructural and physiochemical characteristics of organic-rich shales in the Sichuan Basin, China [J]. Journal of Natural Gas Science and Engineering, 26: 1200-1212.

Liu X J, Xiong J, Liang L X. 2015. Investigation of pore structure and fractal characteristics of organic-rich Yanchang formation shale in central China by nitrogen adsorption / desorption analysis [J]. Journal of Natural Gas Science and Engineering, 22: 62-72.

Liu X J, Zhu H L, Liang L X. 2014. Digital rock physics of sandstone based on micro CT technology[J]. Chinese Journal of Geophysics, 57(4): 1133-1140.

Sheng J, Yang X J, Li G, Xu L, Li Y N, Wang J R, Zhang C Y, Cui H D. 2019. Application of Multiscale X-CT Imaging Digital Core Technique on Observing Micro-pore Structure of Carbonate Reservoirs[J]. Geoscience, 33(3): 653-661.

Silin D, Patzek T. 2006. Pore space morphology analysis using maximal inscribed spheres[J]. Physica A: Statistical Mechanics and its Applications, 371(2): 336-360.

Tiwari P, Deo M, Lin C L, Miller J D. 2013. Characterization of oil shale pore structure before and after pyrolysis by using X-ray micro CT[J]. Fuel, 107: 547-554.

Wang J L, Gao J, Liu L. 2009. Porosity characteristics of sandstone by X-ray CT scanning system [J]. ACTA PETROLEI SINICA, 30(6): 887-893.

Wang Y, Pu J, Wang L H, Wang J Q, Jiang Z, Song Y F, Wang C C, Wang Y F, Jin C. 2015. Characterization of typical 3D pore networks of Jiulaodong formation shale using nano-transmission X-ray microscopy[J]. Fuel, 170: 84-91.




How to Cite

Cheng, M. (2023). Quantitative Characterization of Pore Structure of Carbonate Rocks Based on Micron-CT Technique and Its Seepage Simulation. Academic Journal of Science and Technology, 5(3), 180–185. https://doi.org/10.54097/ajst.v5i3.8010