Solid waste slurry grouting transformation mechanism of loose sand layer based on slurry-water replacement effect DOI
Xianxiang Zhu, Qi Zhang,

Wenquan Zhang

et al.

Physics of Fluids, Journal Year: 2024, Volume and Issue: 36(7)

Published: July 1, 2024

During coal mining, when loose water-bearing sand layers are exposed and connected, it is extremely easy to cause water inrush accidents, threatening the lives properties in mines. Because of intricate tortuous internal structure layer, diffusion pattern grouting slurry within layer has not been accurately characterized. Improving efficiency reducing cost common difficulties faced by industrial mining enterprises renovation layers. This paper innovatively proposes mechanism slurry-water displacement effect based on characteristics layer. It studies power-law fluid seepage porous media tortuosity derives spherical equation considering coupling effect. At same time, an indoor experimental device designed verify rationality superimposed effects two. Furthermore, relying COMSOL Multiphysics platform, a three-dimensional numerical calculation model constructed. analyzes layers, influence different porosity spacing between holes, pressure, viscosity volume The key factors affecting pressure > holes viscosity. Compared with previous technologies processes, technology can solve problems small range poor high-pressure underwater certain extent.

Language: Английский

Multi‐porous extension of anisotropic poroelasticity: Linkage with micromechanics DOI Creative Commons
Filip P. Adamus, David Healy, P. G. Meredith

et al.

International Journal for Numerical and Analytical Methods in Geomechanics, Journal Year: 2024, Volume and Issue: 48(8), P. 2152 - 2178

Published: March 18, 2024

Abstract We attempt to formalise the relationship between poroelasticity theory and effective medium of micromechanics. The assumptions these two approaches vary, but both can be linked by considering undrained response a material; that is main focus paper. To analyse linkage micromechanics, we do not limit ourselves original Biot. Instead, consider multi‐porous extension anisotropic poroelasticity, where pore fluid pressure may vary within bulk interest. As consequence, any inhomogeneities in material are necessarily interconnected; instead, they form isolated sets described different poroelastic parameters pressures. incorporate methods inside Biot‐like investigate various microstructures. show cases such implementation valid others appear questionable. During micromechanical analysis, derive particular case cylindrical transverse isotropy—commonly assumed conventional laboratory triaxial tests—where symmetry induced aligned cracks.

Language: Английский

Citations

4
Numerical study of multiple hydraulic fractures propagation in poroelastic media based on energy decomposition phase field methods DOI
Zaiyong Wang, Weiguo Liang, Haojie Lian

et al.

Computers and Geotechnics, Journal Year: 2024, Volume and Issue: 170, P. 106259 - 106259

Published: March 30, 2024

Language: Английский

Citations

4
A poromechanical framework for hydraulic fracturing processes in transversely isotropic rocks DOI

Weihong Yuan,

Yang Zhao, Bingyin Zhang

et al.

Acta Geotechnica, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 27, 2025

Language: Английский

Citations

0
Anisotropic continuum framework of coupled gas flow – adsorption – deformation in sedimentary rocks DOI
Qi Zhang, Zhen‐Yu Yin, Xia Yan

et al.

International Journal for Numerical and Analytical Methods in Geomechanics, Journal Year: 2023, Volume and Issue: 48(4), P. 1018 - 1045

Published: Dec. 27, 2023

Abstract Solid deformation is always a crucial factor of gas transport in sedimentary rocks. While previous studies adopt the assumption isotropic poroelastic deformation, anisotropic poroelastoplastic rarely considered, despite anisotropy being ubiquitous property natural In this work, an poromechanical model established to analyze matrix porosity and apparent permeability evolutions during process migration. Using thermodynamic formulation that treats fluid–solid interface as independent phase, we derive rate form for obtain new dissipation function contains three parts: dissipations from solid adsorption, fluid flow. For justify rationality adopted model; flow, updated can be substituted into sophisticated models full‐scale analysis; recently developed constitutive appropriate rocks exhibiting transverse isotropy both elastic plastic responses work. Through novel stress‐point simulation incorporating two effective stress measures adsorption strain, patterns are obtained, which fit experimental data quite well cannot reproduced poroelasticity. The advantages our include consistency ability employ finite‐element‐based formulation. Finally, initial‐boundary value problem production considering plasticity conducted, effects bedding plane different highlighted.

Language: Английский

Citations

6
Numerical Analysis of the Stress Shadow Effects in Multistage Hydrofracturing Considering Natural Fracture and Leak-Off Effect DOI Open Access

Jinxin Song,

Qing Qiao, Chao Chen

et al.

Water, Journal Year: 2024, Volume and Issue: 16(9), P. 1308 - 1308

Published: May 4, 2024

As a critical technological approach, multistage fracturing is frequently used to boost gas recovery in compact hydrocarbon reservoirs. Determining an ideal cluster distance that effectively integrates pre-existing natural fractures the deposit creates fracture network conducive movement. Fracturing fluid leak-off also impacts water resources. In our study, we use versatile finite element–discrete element method improves auto-refinement of grid and detection multiple movements model staged naturally fractured This computational illustrates interaction between hydraulic employs nonlinear Carter criterion portray leakage hydromechanical coupling during fracturing. Numerical results show sequential exhibits maximum length unfractured models, volume parallel smallest. Our study proposes innovative technique for identifying optimizing spacing clusters unconventional

Language: Английский

Citations

2
An assumed enhanced strain finite element framework for tensile fracturing processes with dual-mechanism failure in transversely isotropic rocks DOI Creative Commons
Yang Zhao, Rui Wang, Jianmin Zhang

et al.

Journal of Rock Mechanics and Geotechnical Engineering, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 1, 2024

Language: Английский

Citations

2
Solid waste slurry grouting transformation mechanism of loose sand layer based on slurry-water replacement effect DOI
Xianxiang Zhu, Qi Zhang,

Wenquan Zhang

et al.

Physics of Fluids, Journal Year: 2024, Volume and Issue: 36(7)

Published: July 1, 2024

During coal mining, when loose water-bearing sand layers are exposed and connected, it is extremely easy to cause water inrush accidents, threatening the lives properties in mines. Because of intricate tortuous internal structure layer, diffusion pattern grouting slurry within layer has not been accurately characterized. Improving efficiency reducing cost common difficulties faced by industrial mining enterprises renovation layers. This paper innovatively proposes mechanism slurry-water displacement effect based on characteristics layer. It studies power-law fluid seepage porous media tortuosity derives spherical equation considering coupling effect. At same time, an indoor experimental device designed verify rationality superimposed effects two. Furthermore, relying COMSOL Multiphysics platform, a three-dimensional numerical calculation model constructed. analyzes layers, influence different porosity spacing between holes, pressure, viscosity volume The key factors affecting pressure > holes viscosity. Compared with previous technologies processes, technology can solve problems small range poor high-pressure underwater certain extent.

Language: Английский

Citations

0