A5100622986- Reservoir Engineering and Simulation Methods
- Drilling and Well Engineering
- Hydraulic Fracturing and Reservoir Analysis
- Oil and Gas Production Techniques
- Enhanced Oil Recovery Techniques
- Flow Measurement and Analysis
- Fluid Dynamics and Mixing
- Statistical Methods and Inference
- Financial Risk and Volatility Modeling
- Advanced Statistical Methods and Models
- Petroleum Processing and Analysis
- Hydrology and Sediment Transport Processes
- Advanced Chemical Sensor Technologies
- Aeolian processes and effects
- Tunneling and Rock Mechanics
- Soil erosion and sediment transport
- Geoscience and Mining Technology
- Geomechanics and Mining Engineering
- Statistical Distribution Estimation and Applications
- Hydrocarbon exploration and reservoir analysis
- Gas Sensing Nanomaterials and Sensors
- Advanced Sensor Technologies Research
- Analytical Chemistry and Sensors
- Structural Integrity and Reliability Analysis
- Nanoplatforms for cancer theranostics
Shanghai University of International Business and Economics
2014-2024
Tiangong University
2023-2024
Ocean University of China
2020-2024
Southwest Petroleum University
2010-2023
State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation
2010-2023
Daqing Oilfield General Hospital
2023
Guangzhou University
2008-2022
Shandong Jiaotong University
2012-2022
Wuhan Institute of Technology
2020-2022
Australian Regenerative Medicine Institute
2022
In this paper, a fractal model is proposed for gas diffusion in dry and wet fibrous media with tortuous converging–diverging capillary bundle on the basis of theory. The theoretical normalized diffusivity (NGD) can be expressed as an explicit functional relation porosity, [Formula: see text], fluid saturation, dimensions, text] minimum average radius, maximum straight length unit cell well fluctuation amplitude text]. predictions have been compared existing experimental data available...
The rock cores of low permeability reservoirs have special pore structures, which are the essential factors to determine seepage capacity and oil displacement efficiency directly affect gas reserves well productivity. This paper studies 16 digital core samples. Based on fractal theory for porous media, we carried out characterization structure samples by an approach combined with binarized CT images theory. computing software based Box-counting method was used measure calculate dimension...
Abstract Nonsuspended sediment transport (NST) refers to the regime in which flow turbulence is unable support weight of transported grains. It occurs fluvial environments (i.e., driven by a stream liquid) and aeolian wind‐blown) plays key role shaping sedimentary landscapes planetary bodies. NST highly fluctuating physical process because turbulence, surface inhomogeneities, variations grain size shape packing geometry. Furthermore, energy grains varies strongly due their exposure duration...
A novel gas diffusivity model for dry porous media with a damaged tree-like branching network is proposed by using the fractal theory in this study. We systematically investigated effects of number channels and other structural parameters on dimensionless (DGD) concentration drop. As increases, DGD presents decreasing trend, while ratio drop shows rising tendency. Meanwhile, negatively correlated to length exponent, total levels, angle, respectively. On hand, positively diameter exponent....
In this work, a novel fractal model for the laminar flow in roughened cylindrical microchannels is proposed. The average height of rough elements derived using theory. effects relative roughness on friction factor and Poiseuille number are discussed. It found that Darcy increase with microchannel. Besides, it observed decreases Reynolds number. Each parameter proposed has clear physical meaning. present can properly reveal some mechanisms affect microchannels. improves understanding fluid...
Abstract Wellbore pressure gradient in gas wells is significant designing deliquification technologies and optimizing production. At present, no model has yet to be established specifically for at a wide flowrate range. When calculating specific field, engineers must evaluate these widely used models get the best performance certain To establish more comprehensive horizontal wells, an experimental study was conducted investigate flow behavior of liquid-gas two-phase different liquid...
Autoregressive models have played an important role in time series. In this paper, autoregressive model based on the skew-normal distribution is considered. The estimation of its parameters carried out by using expectation–maximization algorithm, whereas diagnostic analytics are conducted means local influence method. Normal curvatures for under four perturbation schemes established. Simulation studies to evaluate performance proposed procedure. addition, empirical example involving weekly...
The tree-like branching network shows prominent advantages in heat and mass transfer, which has been studied for a long time. In this paper, novel model the effective thermal conductivity is proposed with fractal roughened surfaces. function of structure parameters surfaces, including relative roughness ([Formula: see text], length ratio diameter total number levels text] text]. influence on discussed individually based systematic data analysis. It found that clear effect conductivity....
In the present study, we provide a motivating example with financial application under COVID-19 pandemic to investigate autoregressive (AR) modeling and its diagnostics based on asymmetric distributions. The objectives of this work are: (i) formulate AR models their estimation diagnostics; (ii) assess performance parameters estimators local influence technique for these models; (iii) tool show how data following an distribution structure should be analyzed. We take advantages stochastic...
Lithium/carbon fluoride (Li/CFx) batteries are highly favored for ultra-high specific energy systems due to their attractive features. However, the significant heat generation poses serious risks including thermal runaway, illustrating critical need of real-time monitoring during battery operation. Currently, fewer studies have focused on development sensors Li/CFx batteries, especially compatibility with embedded sensors. Here, two types employed achieve detection and safety warning. The...