A5054274993- Petroleum Processing and Analysis
- Enhanced Oil Recovery Techniques
- NMR spectroscopy and applications
- Hydrocarbon exploration and reservoir analysis
- Rheology and Fluid Dynamics Studies
- Ionic liquids properties and applications
- Anomaly Detection Techniques and Applications
- Lubricants and Their Additives
- Venomous Animal Envenomation and Studies
- Climate change impacts on agriculture
- Extraction and Separation Processes
- Epoxy Resin Curing Processes
- Chemical Synthesis and Reactions
- Toxin Mechanisms and Immunotoxins
- Cardiovascular Function and Risk Factors
- Heat transfer and supercritical fluids
- Plant-based Medicinal Research
- Polymer crystallization and properties
- Agriculture Sustainability and Environmental Impact
- Complex Network Analysis Techniques
- E-commerce and Technology Innovations
- Vibration Control and Rheological Fluids
- Regional Development and Environment
- Biodiesel Production and Applications
- Drilling and Well Engineering
China University of Petroleum, Beijing
2019-2024
Jinggangshan University
2024
Zhejiang Provincial People's Hospital
2022
China National Petroleum and Chemical Planning Institute
2021
Fuzhou University
2018-2020
Exposing a waxy crude oil to an electric field represents emerging environmentally sound strategy for improving the cold flowability of oil. However, substantial knowledge gap still exists regarding quantitative relationship between viscosity reduction and treatment parameters (field strength, time, volume treated oil, etc.). This study endeavors investigate physical essence effect these on its duration. It was found when subjected fields varying strengths (0.5–5 kV/mm) sufficient same...
Both resins and asphaltenes are major polar components in crude oils, with the less but much more content. Previously, influences of asphaltene concentration polarity on wax deposition have been studied. However, waxy oils received little attention. In this paper, we discuss based experiments model containing 0.5–3.0 wt. % resins, performed a cold finger device. It was found that addition lowers mass increases content deposits. N-alkane distributions deposits shift toward higher carbon...
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...
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...
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...
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...
Phospholipase A2 (PLA2) is the key enzyme to venom from Deinagkistrodon acutus which one of highly venomous snakes in China. In addition being a catalyst for hydrolysis phospholipases snake venom, it's well known that it possesses broad spectrum pharmacological activities, such as myotoxicity, neurotoxicity, cardiotoxicity, and hemolytic, anticoagulant antiplatelet activities. However, snakebites are not efficiently treated by conventional serum therapy. Acute wounds can still cause...