Modeling hydraulic cracks and inclusion interaction using XFEM

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He, B.; Zhuang, X.: Modeling hydraulic cracks and inclusion interaction using XFEM. In: Underground Space 3 (2018), Nr. 3, S. 218- 228. DOI: https://doi.org/10.1016/j.undsp.2018.04.005

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Sum total of downloads: 128




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Abstract: 
In this study, we employ a coupled hydromechanical model to study the hydraulic fracture propagation path in porous media under the influence of existing pressurized voids. The hydraulic fracturing field study reveals that the existing natural voids and cracks alter the local properties of the porous media and influence the fracture propagation pattern. We incorporate these phenomena into the presented hydromechanical model, which is constructed from the mass and momentum balance equations for saturated porous media. The extended finite element method (XFEM) is applied for modeling the fluid flow through discrete cracks. The nonlinear hydromechanical equations are solved by the Newton-Raphson scheme with an implicit time integration procedure. Finally, numerical examples are presented and compared with experimental results. It is found that the fracture propagation path is significantly influenced by the existing pressurized voids and essential properties of the porous media; that is, the crack trends to propagate towards the pressurized voids.
License of this version: CC BY-NC-ND 4.0 Unported
Document Type: Article
Publishing status: publishedVersion
Issue Date: 2018
Appears in Collections:Fakultät für Maschinenbau

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pos. country downloads
total perc.
1 image of flag of Germany Germany 82 64.06%
2 image of flag of United States United States 18 14.06%
3 image of flag of China China 10 7.81%
4 image of flag of Iran, Islamic Republic of Iran, Islamic Republic of 3 2.34%
5 image of flag of No geo information available No geo information available 2 1.56%
6 image of flag of India India 2 1.56%
7 image of flag of Canada Canada 2 1.56%
8 image of flag of Indonesia Indonesia 1 0.78%
9 image of flag of Algeria Algeria 1 0.78%
10 image of flag of Australia Australia 1 0.78%
    other countries 6 4.69%

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