A5101887284- Petroleum Processing and Analysis
- Enhanced Oil Recovery Techniques
- Hydrocarbon exploration and reservoir analysis
- NMR spectroscopy and applications
- Hydraulic Fracturing and Reservoir Analysis
- Rheology and Fluid Dynamics Studies
- Environmental Chemistry and Analysis
- Epoxy Resin Curing Processes
- Oil Spill Detection and Mitigation
- Environmental and Analytical Chemistry Studies
- Atmospheric and Environmental Gas Dynamics
- Building Energy and Comfort Optimization
- Heavy Metals in Plants
- Odor and Emission Control Technologies
- Mineral Processing and Grinding
- Fluid Dynamics Simulations and Interactions
- Sustainable Building Design and Assessment
- Combustion and flame dynamics
- Combustion and Detonation Processes
- Advanced Combustion Engine Technologies
- Water Quality Monitoring and Analysis
- Analytical chemistry methods development
- Reservoir Engineering and Simulation Methods
- Facilities and Workplace Management
China University of Petroleum, Beijing
2017-2023
China University of Petroleum, East China
2022
China National Petroleum and Chemical Planning Institute
2021
Xi'an Jiaotong University
2009
The paraffin molecules in crude oil crystalize and precipitate out as the cools, resulting a sharp increase viscosity further gelation of oil. waxy gel exhibits complex rheological behaviors, such viscoelasticity, yield stress, thixotropy, posing challenges to flow assurance pipelines. Previous studies have verified that applying high-voltage electric field flowing liquid can significantly reduce its viscosity. In this work, electrorheological behaviors are explored by stress-controlled...
Treatment with pour point depressant (PPD) can significantly improve the cold flowability of waxy crude oil, enabling safe and efficient transportation oils through pipelines. It has been observed that electrical properties such as dielectric constant, ζ-potential, etc., change upon PPD treatment. In a previous study, we reported wax precipitation results in significant impedance spectroscopy (IS) i.e., second semicircle appears Nyquist diagram becomes increasingly bigger increasing amount...
Impedance spectroscopy (IS) is a widely used nondestructive and high-throughput experimental technique for the characterization of electrical properties materials. In petroleum industry, IS frequently employed to determine asphaltenes resins. The waxy crude oils, which correlate significantly with flowability, however, have received little no attention in existing investigations. this work, we inspected influence wax precipitation on oil first time. investigation was carried out frequency...
Exposing waxy oils to an electric field may significantly improve their cold flowability. Our previous study has shown that interfacial polarization, i.e., charged particle accumulation on the wax surface, is primary mechanism of electrorheological behavior oils. However, way particles interact with under remains unknown. In this study, we found no viscosity and impedance change for two crude after exposure a high-voltage field. yield stresses were reduced obviously. We thus proposed...
Adhesive and cohesive fractures are the two possible modes of fracture during yield stress measurement materials such as waxy oil gel. In this study, measurements were performed with a number crude model oils using three geometries, including smooth cylinder, grooved six-bladed vane. Experimental conditions varied to obtain wide range gel strength. It is shown that stresses observed or cylinder close each other while both significantly lower than obtained vane geometry. The difference...
Expanding solvent steam-assisted gravity drainage (ES-SAGD) has been proved by field pilots that it is capable of increasing the production rate as well lowering steam–oil ratio. However, evaluation ES-SAGD based on a single-component diffusion model always presents large deviation between prediction and practical data, due to fact multicomponent actually employed field. In this paper, heat mass transfer coupling for transition interface expanding established. model, equation state fugacity...
Yielding behaviors of waxy crude oil is one the key issues flow assurance challenges. The yielding under constant stress actually a creep process strain accumulation to structural failure, describe completely and accurately basis numerical simulation restart pipeline. yield two gelled crudes were investigated experimentally different applied stresses. results clearly show that related time. greater stress, longer loaded time, more obvious nonlinear features. Based on fractional calculus...
Combustion characteristics of diluted hydrogen−air premixed combustion were studied in a constant volume bomb over wide ranges diluent ratios and equivalence using two kinds gases. A two-zone model was applied to calculate the heat release rate duration based on pressure data. The study showed that, by adding gas into mixture, both development are lengthened. Increasing ratio reduces value peak pressure, reduction is larger rich mixture than lean one. CO2 has greater effects normalized mass...
A novel method for the determination of organophosphorous pesticides (OPPs) in fresh juice samples was developed. Fe3O4 @ P (St-co-MAA) magnetic microparticles were synthesized and modified with styrene (St) methacrylic acid (MAA) by coating St MAA on particles characterized a series techniques. The results indicated that Fe3 O4 nanoparticles (MNPs) have been successfully MAA. Based prepared FeO4 microparticles, solid phase extraction (MSPE)-gas chromatography (GC)-flame photometric...
Abstract Co-injection of solvent and steam in Expanding Solvent-Steam Assisted Gravity Drainage (ES-SAGD) increases the mobility highly viscous oil relative to conventional SAGD wherein only is injected. This consequently results higher production rates lower energy consumption due combined benefits heating dilution. Current efforts have been made study mass transfer from a single-component-solvent/steam mixture into heavy at front, while low-cost multicomponent actually co-injected with on...
Multi-stage hydrocarbon generation and accumulation are very common in petroliferous basins. Also, determination of stages each related diagenetic feature is important for understanding the distribution current oil gas resources one individual basin. However, case conventional sandstone reservoirs, few studies have focused on these resulting reservoir features (e.g., physical property wettability) that caused by first hydrocarbons their geological implications. In this study, taking from...