A5075572773- Rock Mechanics and Modeling
- Soil and Unsaturated Flow
- Groundwater flow and contamination studies
- Hydraulic Fracturing and Reservoir Analysis
- Drilling and Well Engineering
- Nuclear and radioactivity studies
- Landslides and related hazards
- Graphite, nuclear technology, radiation studies
- Numerical methods in engineering
- Geophysical Methods and Applications
- Landfill Environmental Impact Studies
- Geotechnical and Geomechanical Engineering
- Geomechanics and Mining Engineering
- CO2 Sequestration and Geologic Interactions
- Hydrocarbon exploration and reservoir analysis
- Coal Properties and Utilization
- Mineral Processing and Grinding
- Soil, Finite Element Methods
- Geotechnical Engineering and Soil Mechanics
- Geotechnical Engineering and Underground Structures
- Seismic Imaging and Inversion Techniques
- Fluid Dynamics Simulations and Interactions
- Fatigue and fracture mechanics
- Radio Wave Propagation Studies
- Catalysis and Hydrodesulfurization Studies
Shandong University of Science and Technology
2024
University of Technology Sydney
2024
Lishui University
2024
Sinopec (China)
2024
Lawrence Berkeley National Laboratory
2016-2022
University of Calgary
2021
Dalian Ocean University
2020
China Ocean Shipping (China)
2019
Baker Hughes (United States)
2019
Georgia Institute of Technology
2013-2017
The coupled Thermo-Hydro-Mechanical (THM) behavior of the Callovo-Oxfordian claystone (COx) is great importance for design and safety calculations high-level radioactive waste disposal project in this potential host rock France. heat emitted by causes a pore pressure increase within surrounding essentially due to differential thermal expansion water solid skeleton. low permeability COx its relative rigidity inhibits discharge induced build-up. Moreover, loading may provoke thermo-mechanical...
Abstract The potential economic benefits offered by CO 2 ‐enhanced oil recovery (CO ‐EOR) and storage, including increasing production mitigating storage cost, make it an attractive approach for reducing emissions. Sealing formation (caprock) integrity is considered a key risk factor, because of the leaked or brine migrating into shallow groundwater formations. primary purpose this research to evaluate general caprock sealing efficiency under typical ‐EOR conditions, assessing influence...
A new anisotropic damage model for rock is formulated and discussed. Flow rules are derived with the energy release rate conjugate to damage, which thermodynamically consistent. Drucker–Prager yield function adapted make threshold depend on distinguish between tension compression strength. Positivity of dissipation ensured by using a nonassociate flow rule while nonelastic deformation due computed an associate rule. Simulations show that meets thermodynamic requirements, follows rigorous...
We apply thermoporoelasticity and a sequentially coupling technique for modeling thermally-driven coupled Thermo-Hydro-Mechanical (THM) processes in tight claystone. A THM benchmark case with corresponding analytic solution under constant heat loading verifies the model. Thereafter, two situ heating experiments are simulated model validation: smaller-scale experiment (TED experiment) larger-scale (ALC Callovo-Oxfordian (COx) claystone at Meuse/Haute-Marne underground research laboratory...
We present coupled Thermo–Hydro–Mechanical (THM) modeling of geologic nuclear waste disposal in argillaceous claystone, focusing on thermally-induced pressure changes and the potential for such to induce hydro-fracturing. To investigate this possibility, we first conduct a three-dimensional repository scale model, with host rock properties, design, decay heat functions derived from French concept claystone. The model simulations show that highest hydro-fracturing occurs between emplacement...
This research is motivated by the increasing need for geostorage facilities such as nuclear waste disposals, high-pressure gas reservoirs and carbon dioxide sequestration systems. Salt rock has favourable creep properties, enabling crack healing in relatively low-pressure low-temperature conditions. Contrary to models proposed continuum damage mechanics, can predict increase decrease. However, formulation does not allow modelling of time-independent opening resulting anisotropy stiffness...
Summary We propose a numerical method that couples cohesive zone model (CZM) and finite element‐based continuum damage mechanics (CDM) model. The CZM represents mode II macro‐fracture, CDM elements (FE) represent the of CZM. coupled CZM/CDM can capture flow energy takes place between bulk material forms matrix macroscopic fracture surfaces. model, which does not account for micro‐crack interaction, is calibrated against triaxial compression tests performed on Bakken shale, so as to reproduce...
This paper investigates deformation and stiffness anisotropy induced by damage propagation in a rock brittle regime. Specifically, finite-element–based Continuum mechanics model is used to capture sample size effects the influence of intrinsic on stress–strain response shale. The differential stress-induced (DSID) previously proposed authors calibrated against triaxial compression tests performed North Dakota Bakken shale samples. Laboratory simulated with FEM reproduce localization...
As a complex two-phase flow in naturally fractured coal formations, the prediction and analysis of CBM production remain challenging. This study presents discrete fracture approach to modeling coalbed methane (CBM) water reservoirs, particularly influence orientation, density, gravity, skeleton on fluid transport. The model is first verified by two water-flooding cases with multi- single-fracture configurations. then used simulate from reservoir using four different patterns. results...
The stability of integration is essential to numerical simulations especially when solving nonlinear problems. In this work, a continuum damage mechanics model proposed by the first author implemented with an method named cutting plane algorithm (CPA) improve robustness simulation. This one type return mapping that bypasses need for computing gradients. We compare current previous direct method, and result shows exhibits excellent performance under large loading rate conditions. To enhance...