A5090419953- Enhanced Oil Recovery Techniques
- Hydraulic Fracturing and Reservoir Analysis
- Hydrocarbon exploration and reservoir analysis
- Petroleum Processing and Analysis
- CO2 Sequestration and Geologic Interactions
- Reservoir Engineering and Simulation Methods
- Fluid Dynamics and Heat Transfer
- Pickering emulsions and particle stabilization
- Lattice Boltzmann Simulation Studies
- Surface Modification and Superhydrophobicity
- Fluid Dynamics and Mixing
- NMR spectroscopy and applications
- Zeolite Catalysis and Synthesis
- Microfluidic and Capillary Electrophoresis Applications
- Analytical Chemistry and Chromatography
- Heat and Mass Transfer in Porous Media
- Phase Equilibria and Thermodynamics
- Heat Transfer and Boiling Studies
- Drilling and Well Engineering
- Polymer Nanocomposites and Properties
- Electrostatics and Colloid Interactions
- Membrane Separation and Gas Transport
- Carbon Dioxide Capture Technologies
- Nanopore and Nanochannel Transport Studies
- Mesoporous Materials and Catalysis
China University of Petroleum, Beijing
2017-2024
Kunming University of Science and Technology
2021
Northeast Petroleum University
2013
To solve the contradiction between injectability of profile control agent and its ability in low-permeability reservoirs, a novel in-situ polymeric microsphere is proposed. In-situ-polymeric (ISPM) emulsion was injected into formation by polymerization to form microspheres for control. The composed divinylbenzene, acrylamide monomer, surfactant fatty acid polyoxyethylene ether sulfate, sorbitan oleate p-hydroxyanisole. An ISPM particle diameter 1.88 30.60 μm achieved adjusting amount Span80....
The evaluation of the ease to generate emulsions and stability oil–water system is essential for investigation application chemical flooding technology enhanced oil recovery (EOR). However, previous characterization methods have mainly focused on emulsion stability. To fill this gap, study designed a novel instrument visualizing presence separation an system. Thereafter it also proposed quantitative methods: emulsification index (EI) characterizing surfactants with crude demulsification (DI)...
The Klinkenberg slippage theory has widely been used to obtain gas permeability in low-permeability porous media. However, recent research shows that there is a deviation from the for tight reservoir cores under low-pressure conditions. In this research, new experimental device was designed carry out steady-state test with high pressure and low flowrate. results show that, unlike regular cores, of not constant value, but variate related fluid-dynamic parameter (flowrate). Under high-pressure...
Through new core wettability simulation technology and the single-sided unidirectional imbibition experimental method, influence of on oil characteristics was studied by using artificial cores with index in range −0.9~0.95. Results show that for permeability from ultra-low to medium–high, time shows a monotonically decreasing law increase index. In weak water-wet range, increases significantly weakening water-wet. Oil rate goes up strong will change wettability. zone, there is positive...
Understanding mechanical degradation is crucial for successful polymer flooding. In this study, the effects of stretching velocity, pore-throat ratio, concentration, and migration distance on HPAM were studied using a model. Additionally, contribution tensile at entry point model to overall was assessed through extrapolation. The experimental results indicate that primary cause degradation, its positively related flow rate. correlates with velocity (0.41 ∼ 6362s−1), ratio (6 60),...
Because of its simple principle and high adaptability to severe operational conditions, the capillary-tube viscometer has been widely used for viscosity measurement. However, difficulties in accurately correcting end effect induced measurement deviation will result great uncertainty results. In order solve this problem, work, we studied factors affecting by conducting pressure nitrogen at low flow velocity with an improved viscometer. The experimental results indicated that influence became...
Abstract In this study, a visualized physical model of artificial oil film was firstly designed to investigate the displacement mechanisms. Numerous comparative experiments were conducted explore detachment mechanisms and recovery performances in different fluid mediums with flow rate. addition, influencing factors comprehensively evaluated, which mainly includes: rate, surfactant behaviors, crude viscosity. The results show that, (1) regardless viscosity oil, rate presents limited...
In this paper, the gas–liquid static contact angles in silica microtubes (inner diameter range of 5–700 μm) are measured by optical microscope. The experimental results show that microtube have microscale wetting effect, which decrease monotonically with tube and regularly deviate from angle on plate. When decreases 700 μm to 5 μm, water hexadecane 42.87° 13.22° 15.94°–9.09°, respectively. Actual effect causes capillary force driving resistance residual droplets pore-throat be bigger than...
Oil – water emulsification covers two aspects, the ease to form emulsions and subsequent oil–water separation. However, previous studies on have mainly focused emulsion stability largely ignored emulsifying capability of an system. To fill this gap, study designed a novel instrument for visualizing presentence separation oil-water system, proposed quantitative methods, namely, index (EI) characterizing surfactants generate with crude oil half-life describing stability. These methods...
Anomalous solid-like liquids at the solid–liquid interface have been recently reported. The mechanistic factors contributing to these anomalous and whether they can stably exist high vacuum are interesting, yet unexplored, questions. In this paper, thin slices of silica tubes soaked in hexadecane were observed under a transmission electron microscope room temperature. H-spectrum microtubules was measured by nuclear magnetic resonance. On interior surface tubes, 0.2–30 μm inside diameter...