A5040452331- Corrosion Behavior and Inhibition
- Concrete Corrosion and Durability
- Hydraulic Fracturing and Reservoir Analysis
- Hydrogen embrittlement and corrosion behaviors in metals
- Oil and Gas Production Techniques
- Reservoir Engineering and Simulation Methods
- Enhanced Oil Recovery Techniques
- Non-Destructive Testing Techniques
- Traffic and Road Safety
- Drilling and Well Engineering
- Anodic Oxide Films and Nanostructures
- Aluminum Alloy Microstructure Properties
- Injury Epidemiology and Prevention
- Iron and Steelmaking Processes
- Geoscience and Mining Technology
- Environmental Quality and Pollution
- Offshore Engineering and Technologies
- Membrane Separation and Gas Transport
- Microwave Dielectric Ceramics Synthesis
- Geochemistry and Elemental Analysis
- Structural Integrity and Reliability Analysis
- Chemical Looping and Thermochemical Processes
- Child Nutrition and Water Access
- Semiconductor materials and devices
- Mining and Gasification Technologies
Sun Yat-sen University
2017-2023
Institute of Chemical Industry of Forest Products
2021
Chinese Academy of Forestry
2021
Harbin Medical University
2021
Shenyang Aluminum & Magnesium Engineering & Research Institute (China)
2020
University of Virginia
2014-2020
Nanjing University of Science and Technology
2019
Zhejiang Ocean University
2019
Institute of Forensic Science
2019
China National Petroleum Corporation (China)
2018
Abstract The CoFe 2 O 4 nanoparticles have been synthesized by using a stable ferric salt of FeCl 3 with micellar microemulsion method. normal micelles are formed sodium dodecyl sulfate (NaDS) in aqueous solutions. mean size the can be controlled from less than nm to about 10 through controlling concentrations reagents. neutron diffraction combination Rietveld refinement shows that these high degree inversion 66% tetrahedral sublattice occupied Fe 3+ . Magnetic measurements and studies...
The value of diatom test for the diagnosis drowning remains controversial. conventional forensic with low sensitivity is not a useful tool to provide accurate information about in tissues and organs. To improve test, we developed novel method called Microwave Digestion-Vacuum Filtration-Automated Scanning Electron Microscopy (MD-VF-Auto SEM) which resulted high recovery diatoms. In this article, analyzed 128 water-related death cases. Our results showed that MD-VF-Auto SEM could achieve much...
In this work, a rotating disk electrode was used to measure the cathodic kinetics on stainless steel as function of diffusion layer thickness (6 60 μm) and chloride concentration (0.6 5.3 M NaCl). It found that, while followed Levich equation for large thicknesses, overpredicts mass-transfer limited current density thicknesses less than 20 μm. Also, an unusual transitory response between activation controlled regions observed small that more apparent in lower solutions. The presence...
How to effectively develop tight-gas carbonate reservoir and achieve high recovery is always a problem for the oil gas industry. To solve this problem, domestic petroleum engineers use combination of successful experiences North American shale pools development by stimulated volume (SRV) fracturing with research achievements Chinese tight acid propose technology fractured reservoir, which has achieved good stimulation effect in pilot tests. determine what conditions are suitable carry out...
A series of SK-activated carbons were prepared by carbonising soya beans in the presence KOH as activation agent. Different temperatures applied to study influence preparation conditions on surface properties and their CO2 adsorption capacity. It was found that capacity is directly related nature basic N-containing groups highest value 4.24 mmol/g under 25°C 1 atm.
Abstract Chemical injection has been used to combat reservoir sweeping and water-control problems in the last two decades with different degrees of success. Many methods face challenges chemical durability, penetration depth, rock-fluid compatibility, economical justification. Polymer microsphere is a new method developed recently address these controlling waterflood conformance enhance recovery efficiency. Made by emulsion synthetic technique polymer expands at contact water resulting...
Connections between dissimilar materials are frequently encountered in aviation and marine structures. When two types of exposed to a moist atmospheric condition, there is high poss...
The effect of Al3+ on the cathodic kinetics Al alloys as well Pt and SS316L has been investigated by a number electrochemical techniques. It observed that addition into NaCl solution can significantly increase diffusion limited alloys, this is proportional to [Al3+]. same phenomenon was also SS316L, which indicates enhancement in not related surface structure alloy, it HER diffusion-limited are increased rather than ORR result. Based studies Pt, proposed although lead precipitation an...
Abstract Lost circulation is a complicated situation in the drilling operation, wasting lot of time and mud during processing. A serious lost can cause many hazards, such as internal pressure drop, affecting normal drilling, causing well instability, inducing formation fluid into wellbore blowout. The current plugging technology solve some leakage, but there are still problems conventional technology, particle size material does not match crack width, slippage blocking zone, weak adhesion...
The effect of sodium chromate on the cathodic current availability pertinent to micro-galvanic-induced corrosion high-strength AA7XXX alloys under simulated thin electrolyte films representative atmospheric conditions was investigated utilizing a combination electrochemical and surface characterization techniques. rotating disk electrode technique provided means simulate effects water layer thickness differentiate film from full immersion conditions, enabled study mass-transport-limited...
The inhibitory effects of Mg2+ and Zn2+ on the cathodic kinetics AA7050-T7451 were investigated by both electrochemical techniques surface characterization tools. This study focused Zn2+/Mg2+ concentration immersion time. It has been found that in potential regime where oxygen reduction reaction (ORR) was dominant, Mg(OH)2 NaZn4(SO4)(OH)6Cl⋅6H2O precipitated Cu-bearing intermetallic compounds (IMCs) embedded Mg2+-and Zn2+-containing solutions, respectively. Both formed a barrier to...
The horizontal well technology has been widely applied to enhanced oil recovery for low permeability and heavy reservoir. It is the important basis designing optimizing determine productivity. productivity determination of wells in offshore fields mainly based on actual data producing directional similar reservoirs nearby. Considering pressure drop layer thickness calculate productivity, this method lacks certain theoretical requires rich working experience reservoir engineers. other Joshi...
Diatoms detected in human organs have been considered as supportive evidence for the diagnosis of drowning. During drowning, vast majority diatoms are retained lung tissues, and only few transported to distant via bloodstream. In this article, we quantitatively analysed diatom contents liver kidney tissues drowning mediums 165 death cases. The results showed that content was positively correlated with water samples. However, there no linear correlation between Our study also were correlated,...
Abstract Qin Huang Dao 32–6 (QHD32–6) oil field located at Bohai Bay of China is a large heavy (74–260mPa.s) with flat structure, multi-pay zone, complex and water contact system discovered by CNOOC (Fig. 1). The development plan drilling vertical wells to penetrate multi zones well space (350-400m) in 3 blocks (North, South, West). Due comingle production pattern quickly coning the bottom water, became mainly producer faced be shut-down after short period first oil. Measurement like zone...
Background: Mechanical asphyxia (MA) is multi-classified. Some epidemiological characteristics are shared and the others different among MA types. Aims Objectives: To reveal of types provide reference data for forensic identification MA. Materials Methods: We analyzed 913 cases to in Dongguan Guangzhou, China. Results: Seven were identified strangulation accounted up 89.2%. Those aged 20-29 most susceptible all types, except traumatic positional asphyxia. Suicide 96.6% hanging cases,...
Aluminum pigments were encapsulated by hydrolysis and condensation of tetraethoxysilane (TEOS) methyltriethoxysilane (MTES). The influences solvents ratio MTES/TEOS on corrosion inhibition performance studied. FTIR, XPS SEM analysis showed that both TEOS MTES hydrolyzed condensed at the same time to form a compact thin sol-gel layer surface aluminum pigments. TEOS, which can hardly generate H 2 in acid media pH=1 within 12h, show greatly excellent resistance than only or MTES, due formation...
A thin, chloride-containing electrolyte film can be established on surfaces in many marine environments, due to splash/spray, rain, or salt-enabled deliquescence [1]. Defects the corrosion protection system are common and inevitable intense operating/maintenance conditions of ships aircraft. Such defects likely intensified at complex component joining/fastener locations. Furthermore, geometry faying fastener holes inherently aid trapping/wicking into tight crevices typical these joining This...
To study life differences between pre-corrosion fatigue and corrosion-fatigue test, LY12CZ standard specimens are selected in test to get the C(t) curve at first. Then, combining with Miner linear cumulative damage theory, theoretical is calculated by simulated interactive process. Compared actual rather conservative. Afterwards, a modified model based on method different periods of specific flight strength established. The result shows that good agreement test.