A5102105367- Drilling and Well Engineering
- Industrial Technology and Control Systems
- Computational Fluid Dynamics and Aerodynamics
- Multilevel Inverters and Converters
- Non-Destructive Testing Techniques
- Rocket and propulsion systems research
- Oil and Gas Production Techniques
- Concrete and Cement Materials Research
- Aerosol Filtration and Electrostatic Precipitation
- Advanced Sensor and Control Systems
- Transcranial Magnetic Stimulation Studies
- Neuroscience and Neural Engineering
- Petroleum Processing and Analysis
- HVDC Systems and Fault Protection
- Silicon Carbide Semiconductor Technologies
- Reservoir Engineering and Simulation Methods
- Combustion and flame dynamics
- Advanced Algorithms and Applications
- Granular flow and fluidized beds
- Cyclone Separators and Fluid Dynamics
- Enhanced Oil Recovery Techniques
- Neurological disorders and treatments
- Hydraulic Fracturing and Reservoir Analysis
Southwest Petroleum University
2024-2025
State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation
2024
Harbin Engineering University
2023
Jiangsu University
2013
China University of Petroleum, Beijing
2009
The purpose of this study is to analyze the relationship between key factors and output results, determine feasible prediction method elastic modulus calcium hydroxide in oil well cement. Combining first-principles calculation with machine learning, Material Studio (MS) was used simulate at different temperatures pressures, obtain microstructure parameters mechanical properties hydroxide, construct initial data set. At same time, random forest feature importance analysis screen input...
Methods by which to achieve non-invasive deep brain stimulation via temporally interfering with electric fields have been proposed, but the precision of positioning and reliability stability outputs require improvement. In this study, a electrical stimulator was developed based on neuromodulation technique using interference modulation waveform produced several high-frequency stimuli treat neurodegenerative diseases. The device auxiliary software constitute system. technical problems related...
This paper compares the cooling effect on launch pad with two different levels of water system used in Long March 7. The rocket plume model is set up based three-dimensional Navier–Stokes equations solved by realizable turbulence model. Eulerian dispersed phase (EDP) employed to describe injected water. Comparing test data, validity above models verified, respectively. On this basis, temperature distributions spray are investigated. results show that overall drops significantly first-level...
In the field of cement, if formation cannot be given sufficient pressure to maintain stability during construction, control failure may occur, leading leakage liquids and gasses from wellbore. addition, irregular wellbore diameter casing eccentricity are important factors that easily overlooked affect prediction ECD (Equivalent Circulation Density) calculation. This results in major accidents ecological disasters, further impacting global environment. study focuses on a well eastern...
f the ratio of NPC/H and H bridge hybrid multilevel converters DC supply voltage changed, output PWM waveform will be discontinuous. Thus an improved topology control strategy is proposed. In new method, master converter operates at fundamental frequency based on command voltage, slave adopts carrier phase shifted technology (CPS-SPWM) a higher to enhance quality waveform. The amplitude than any time, ensure that variation both keeps in same direction without current flow backwards. Matlab...