Numerical modelling of fluid transportation based on digital core model

Rock pore is the storage space and migration channel of geo-fluid resource like petroleum, coalbed methane and shale gas etc. In this paper, the rock core microscopic pore structure based on CT image is studied through image processing. Then the parameters are analyzed statistically by numerical mod...

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Bibliographic Details
Published in:Journal of physics. Conference series 2019-10, Vol.1324 (1), p.12078
Main Authors: Liu, Jianjun, Wang, Rui, Zhang, Bohu, Zu, Lin, He, Xiang
Format: Article
Language:English
Subjects:
Coalbed methane
Computed tomography
Computer simulation
Finite element method
Image processing
Mathematical models
Parameters
Percolation
Permeability
Physics
Porosity
Seepage
Shale gas
Software
Structural models
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Summary:Rock pore is the storage space and migration channel of geo-fluid resource like petroleum, coalbed methane and shale gas etc. In this paper, the rock core microscopic pore structure based on CT image is studied through image processing. Then the parameters are analyzed statistically by numerical modelling. The reconstructed software Mimics is used to reconstruct the core structural model. Finally, the relationship between the pore structure parameters and penetrability is studied by numerical simulation. The equivalent permeability of the reconstructed core is calculated by using FEM software Abaqus. The results shown that fluid percolation is directly related with porosity, pore shape, pore conectivity. The permeability of core can be obtained by substituting flow numerical simulation for seepage laboratory experiment.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1324/1/012078