Details
| Original language | English |
|---|---|
| Pages (from-to) | 1017-1027 |
| Number of pages | 11 |
| Journal | KSCE Journal of Civil Engineering |
| Volume | 23 |
| Issue number | 3 |
| Publication status | Published - 30 Jan 2019 |
| Externally published | Yes |
Abstract
A hydromechanical model for investigating fluid flow in the fractured porous media is presented in this study. The hydromechanical coupling equations are derived from the mass and momentum balance equation for the saturated porous media. The extended finite element method is employed to model the discontinuity for fluid flow and cracks inside the porous media. The Newton-Raphson method is utilized for solving the nonlinear coupling equation with an implicit time integration scheme. Finally, examples are presented to demonstrate the effectiveness of the presented model. Fracture propagation in the porous media under the influence of the preexisted pressurized zone is also studied. It is found that the cracks and preexisted pressurized region have a significant impact on the fluid flow and deformation patterns.
Keywords
- discrete crack, hydraulic fracturing, hydromechanical model, porous media, XFEM
ASJC Scopus subject areas
- Engineering(all)
- Civil and Structural Engineering
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In: KSCE Journal of Civil Engineering, Vol. 23, No. 3, 30.01.2019, p. 1017-1027.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Coupled Discrete Crack and Porous Media Model for Hydraulic Fractures using the XFEM
AU - He, Bo
AU - Zhuang, Xiaoying
N1 - Funding information: The authors gratefully acknowledge the support from the NSFC Program (51474157), State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining & Technology (SKLGDUEK1526), Science and Technology Commission of Shanghai Municipality (16QA1404000) and Fundamental Research Funds for the Central Universities.
PY - 2019/1/30
Y1 - 2019/1/30
N2 - A hydromechanical model for investigating fluid flow in the fractured porous media is presented in this study. The hydromechanical coupling equations are derived from the mass and momentum balance equation for the saturated porous media. The extended finite element method is employed to model the discontinuity for fluid flow and cracks inside the porous media. The Newton-Raphson method is utilized for solving the nonlinear coupling equation with an implicit time integration scheme. Finally, examples are presented to demonstrate the effectiveness of the presented model. Fracture propagation in the porous media under the influence of the preexisted pressurized zone is also studied. It is found that the cracks and preexisted pressurized region have a significant impact on the fluid flow and deformation patterns.
AB - A hydromechanical model for investigating fluid flow in the fractured porous media is presented in this study. The hydromechanical coupling equations are derived from the mass and momentum balance equation for the saturated porous media. The extended finite element method is employed to model the discontinuity for fluid flow and cracks inside the porous media. The Newton-Raphson method is utilized for solving the nonlinear coupling equation with an implicit time integration scheme. Finally, examples are presented to demonstrate the effectiveness of the presented model. Fracture propagation in the porous media under the influence of the preexisted pressurized zone is also studied. It is found that the cracks and preexisted pressurized region have a significant impact on the fluid flow and deformation patterns.
KW - discrete crack
KW - hydraulic fracturing
KW - hydromechanical model
KW - porous media
KW - XFEM
UR - http://www.scopus.com/inward/record.url?scp=85062210466&partnerID=8YFLogxK
U2 - 10.1007/s12205-019-0449-8
DO - 10.1007/s12205-019-0449-8
M3 - Article
AN - SCOPUS:85062210466
VL - 23
SP - 1017
EP - 1027
JO - KSCE Journal of Civil Engineering
JF - KSCE Journal of Civil Engineering
SN - 1226-7988
IS - 3
ER -