A5066780060- Rock Mechanics and Modeling
- Geotechnical and Geomechanical Engineering
- Landslides and related hazards
- Hydraulic Fracturing and Reservoir Analysis
- Methane Hydrates and Related Phenomena
- Drilling and Well Engineering
- Coal Properties and Utilization
Chongqing University of Science and Technology
2024-2025
Beijing University of Civil Engineering and Architecture
2015-2016
This study investigated the mechanisms influencing hydraulic fracture propagation under influence of cleat complex geometries. The established a 3D-DEM (three-dimensional discrete element method) model for propagation, utilizing method and incorporating simulates patterns fractures within coal seams. findings indicate following: (1) width seam cleats undergoes significant variations. A quantification these variations novel concept cleat-induced deflection angle are proposed. As increases...
In this paper, a two dimensional-discrete element method complex fracture extension model was developed to simulate the behavior in reservoirs during multi-cluster perforation fracturing of horizontal wells by particulate flow and considering temporary plugging conditions. The effect particle inhomogeneity on fractures, change extending characteristics before after plugging, geological construction parameters fractures under consideration conditions are investigated model. results show that:...
Abstract Various failure criteria for rocks are discussed with emphasis on intrinsic temporal and structural features. It is shown that such internal-time/structure-based fracture different expressions of the governing changes under external action. Rock mass has a complex internal hierarchy, intimately related to development cracks, their growth coalescence. In order describe properly deformation in it necessary consider hierarchy rock finiteness crack propagation. Critical issues including...