A5103210334- Hydraulic Fracturing and Reservoir Analysis
- Rock Mechanics and Modeling
- Drilling and Well Engineering
- Hydrocarbon exploration and reservoir analysis
- Coal Properties and Utilization
- Seismic Imaging and Inversion Techniques
- Methane Hydrates and Related Phenomena
- Landslides and related hazards
- CO2 Sequestration and Geologic Interactions
- Geotechnical and Geomechanical Engineering
- Geothermal Energy Systems and Applications
- Tunneling and Rock Mechanics
- Geophysical Methods and Applications
- Granular flow and fluidized beds
- Numerical methods in engineering
- Grouting, Rheology, and Soil Mechanics
- Groundwater flow and contamination studies
Chengdu University of Technology
2021-2024
State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation
2024
China University of Petroleum, East China
2018-2023
China University of Petroleum, Beijing
2018
The benefits of using cryogenic liquid nitrogen shock to enhance coal permeability have been confirmed from experimental perspectives. In this paper, we develop a fully coupled thermo-elastic model in combination with the strain-based isotropic damage theory uncover cooling-dominated cracking behaviors through three typical cases, i.e. reservoirs containing wellbore, primary fracture, and natural fracture network, respectively. progressive processes, thermal initiation, propagation or...
Abstract A fully coupled thermal‐hydraulic‐mechanical (THM) model was developed to investigate the underlying response mechanisms during heat extraction in fractured geothermal reservoirs. The random fracture network stimulated zone reproduced based on fractal theory. accounts for dominant physical phenomena including (a) fluid flow, transport, and solid deformation porous media fractures; (b) local thermal nonequilibrium (LTNE) between rock matrix flowing fluid; (c) temperature‐dependent...
With the production of oil and gas from reservoir for a long period time, pore pressure will decline initial value to lower level, which narrows safety mud weight window, consequently, makes it easier generate drilling induced fracture (DIF). In this paper, new analytical model is proposed predicting initiation corresponding mode DIF in depleted reservoir. The effect on stress field considered. Formation around borehole divided into plastic zone elastic according geomechanical parameters,...
In order to commercially develop shale gas reservoirs, it is necessary understand the transport mechanisms in matrix and how permeability evolves during reservoir depletion. this work, improved apparent models describe through microstructures (i.e. micropores microfractures) organic matter (OM) inorganic (iOM) of are proposed. The able consider combined effects poromechanics, non-Darcy flow, sorption fractal dimension on flow behavior. obtained results indicate that microfracture aperture...
Abstract To reduce near wellbore fracture complexity in continental laminated shales, in-plane perforations completion technology is introduced. The global embedded cohesive elements are capable to simulating arbitrary propagation growth while the laminae effects on path can be considered established finite element model. Numerical simulations reflect that existence of weak micro fractures only locally alter but change greatly. Furthermore, in-situ stress anisotropy, pump rate, perforation...
ABSTRACT Thermally-induced cracking has attracted extensive attention in improving reservoir permeability. In this paper, a thermo-elastic coupling model incorporating the strain-based elastic-brittle damage theory is used to analyze behaviors of coal subjected cryogenic liquid nitrogen shock. The evolution temperature and thermally-induced stress with analyzed. effect different factors including in-situ difference, elastic modulus, thermal expansion coefficient, conductivity quenching on...