A5069042007- Hydraulic Fracturing and Reservoir Analysis
- Drilling and Well Engineering
- Hydrocarbon exploration and reservoir analysis
- Enhanced Oil Recovery Techniques
- Petroleum Processing and Analysis
- CO2 Sequestration and Geologic Interactions
- Dust and Plasma Wave Phenomena
- Oil and Gas Production Techniques
- Reservoir Engineering and Simulation Methods
- Vibration and Dynamic Analysis
- Thermal Analysis in Power Transmission
- Advanced Sensor and Energy Harvesting Materials
- Electrohydrodynamics and Fluid Dynamics
- Electrospun Nanofibers in Biomedical Applications
- Cold Atom Physics and Bose-Einstein Condensates
- Rock Mechanics and Modeling
- Particle Detector Development and Performance
- Ionosphere and magnetosphere dynamics
- Plasma Diagnostics and Applications
- Mechanical stress and fatigue analysis
- Icing and De-icing Technologies
- Integrated Energy Systems Optimization
- High voltage insulation and dielectric phenomena
- Particle Accelerators and Free-Electron Lasers
- Groundwater flow and contamination studies
China University of Petroleum, Beijing
2009-2024
State Grid Corporation of China (China)
2010-2024
Shanghai Jiao Tong University
2022-2024
Minzu University of China
2024
Sinopec (China)
2016-2024
University of Warwick
2019-2022
Karamay Central Hospital of Xinjiang
2017
Chengdu University of Technology
2017
China University of Petroleum, East China
2011-2016
Max Planck Institute for Extraterrestrial Physics
2010-2013
The multi-needle electrospinning system is a convenient way to produce fibers with special structures such as core-shell morphologies at high production rate. In this paper, specially designed presented. spinnerets were built-up an equilateral hexagon array. Each set of 3 needles the distributed triangle. A coaxial shield ring was used create approximate uniform electric field near tips and restrict collection area. simulation results also show that outside can help more inside path jets,...
Recent experiments demonstrated that the essential electrospinning mechanism is a rapidly whipping dielectric liquid jet in an electric field. The effects of three kinds field distributions including very nonuniform field, slightly and uniform were studied to analyze influence distribution on process fiber morphology. average strength Eav nonuniformity coefficient f used describe results show length range straight path for stable was function distribution. part increased with decreasing f....
Injecting proppant to prop open fluid-driven fractures in subsurface reservoirs is one of the key missions hydraulic fracturing. However, quantitative evaluation distribution successfully propped limited due infeasibility direct measurement. This work defines an indexing parameter for field practice estimate proportion proppant-filled reservoir – filling index (PFI). A new data-driven workflow, combining numerical models and ensemble learning algorithm, proposed trained on records both...
Summary Sand screenout is one of the most serious and frequent challenges that threaten efficiency safety hydraulic fracturing. Current low prices oil/gas drive operators to control costs by using lower viscosity lesser volumes fluid for proppant injection—thus reducing sand-carrying capacity in treatment increasing risk screenout. analyses predict as isolated incidents based on interpretation pressure or accumulation. We propose a method continuous evaluation prediction combining...
Summary Sand screenout, the most frequent incident during hydraulic fracturing, is one of major threats to operational safety and efficiency. Screenout occurs when advancing fractures are blocked by injected proppant-slurry, stall, develop fluid overpressure. Because massive wells still being hydraulically fractured every year, has become a critical urgent issue that always been overshadowed whether-or-not controversy. However, suddenness unheralded surprise screenout make it extremely...
Abstract The change of fracture propagation direction caused by stress interference between fractures is one the main reasons that affect shale gas productivity. Natural will be damaged induced stress, and field produced natural damage in turn hydraulic fractures. Previous studies usually ignored impact variation damage, leading to inaccurate simulation results. A new model for simulating fracturing-induced established with consideration influence damage. Then, fracture-induced analyzed open...
Numerical algorithms are proposed for simulating the Brownian dynamics of charged particles in an external magnetic field, taking into account motion particles, damping effect and field self-consistently. Performance these is tested terms their accuracy long-time stability by using a three-dimensional oscillator model with constant field. Step-by-step recipes implementing given detail. It expected that can be directly used to study particle various dispersed systems presence including...
A cloud of microparticles was trapped deep in the sheath a radio-frequency (rf) discharge, very close to lower (grounded) electrode plasma chamber. This achieved by employing specifically designed rf-driven segment integrated electrode, which provided an additional confinement compressing high density. After switching off, “exploded” due mutual interparticle repulsion. By combining simple theoretical model with different numerical simulation methods, some basic properties complex plasmas...
Proppant transport in underground fractures plays a key role mitigating sand screen-out and enhancing the stimulated production for hydraulic fracturing.The effects of field pumping schedules, however, are not fully studied.We investigate effect slickwater-alternate-slurry injection on proppant at field-practical scales.A new hybrid approach is proposed to directly connect experimental studies with operations, which consists observation experiments, calculations, deep learning (DL)...