A5029369925- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Hydraulic Fracturing and Reservoir Analysis
- Hydrocarbon exploration and reservoir analysis
- Enhanced Oil Recovery Techniques
- Dark Matter and Cosmic Phenomena
- Nuclear physics research studies
- Drilling and Well Engineering
- NMR spectroscopy and applications
- Coal Properties and Utilization
- Reservoir Engineering and Simulation Methods
- Combustion and Detonation Processes
- Particle Detector Development and Performance
- Fire dynamics and safety research
- Petroleum Processing and Analysis
- Oil and Gas Production Techniques
- Wind and Air Flow Studies
- Neutrino Physics Research
- Seismic Imaging and Inversion Techniques
- Lattice Boltzmann Simulation Studies
- Cosmology and Gravitation Theories
- Superconducting Materials and Applications
- Particle Accelerators and Free-Electron Lasers
- Astronomical and nuclear sciences
Changzhou University
2022-2025
Jilin University
2024
Institute of Modern Physics
2019-2024
Fudan University
2019-2024
University of Shanghai for Science and Technology
2023-2024
University of Chinese Academy of Sciences
2018-2023
Research Institute of Petroleum Exploration and Development
2018-2023
East Carolina University
2020-2023
Institute of Porous Flow and Fluid Mechanics
2018-2022
Chinese Academy of Sciences
2005-2022
New high-precision measurements of $p(\stackrel{\ensuremath{\rightarrow}}{\ensuremath{\gamma}},\ensuremath{\pi})$ and $p(\stackrel{\ensuremath{\rightarrow}}{\ensuremath{\gamma}},\ensuremath{\gamma})$ cross sections beam asymmetries have been combined with other polarization ratios in a simultaneous analysis both reactions. Compton scattering has provided two important new constraints on the photopion amplitude. The $E2/M1$ mixing ratio for $N\ensuremath{\rightarrow}\ensuremath{\Delta}$...
Pore–throat size is a key parameter for the assessment of reservoirs. Tight sandstone has strong heterogeneity in distribution pores and throats; consequently, it very difficult to characterize their distributions. In this study, existing pore–throat characterization techniques were used jointly with scanning electron microscopy (SEM), low-temperature nitrogen adsorption (LTNA), high-pressure mercury intrusion (HPMI), rate-controlled (RCMI) technologies highlight features throat sizes tight...
The complex fracture network may be formed by coupling natural fractures (NFs) and hydraulic (HFs) in the shale gas reservoir. In this work, introducing topology theory, two types of topological nodes, three connections, four topologies on are proposed and, accordingly, numerical model multiply fractured horizontal well (MFHW) is further established based embedded discrete analysis. production analysis shows that large Langmuir volume pressure contribute to higher under assumption content...
Abstract Rocks are heterogeneous multiscale porous media: two rock samples with identical bulk properties can vary widely in microstructure. The advent of digital technology and modern 3‐D printing provides new opportunities to replicate rocks. However, the inherent trade‐off between imaging resolution sample size limits scales over which microstructure macrostructure be identified related each other. Here, we develop a construction strategy by combining X‐ray computed microtomography...
We investigate the chiral magnetic effect (CME) in relativistic heavy-ion collisions through an improved two-plane method analysis of $\Delta\gamma$ observable, probing $\mathcal{CP}$-symmetry breaking strong interactions and topological properties QCD vacuum. Using a multiphase transport model with tunable CME strengths, we systematically compare Au+Au isobar at $\sqrt{s_{_{\rm NN}}} = 200$ GeV. observe reduced difference signal-to-background ratio between spectator participant planes for...
We present final measurements of 13 charmless hadronic B decay modes from the CLEO experiment. The include ten ππ, Kπ, and KK states new limits on dibaryonic states, p¯p, p¯Λ, Λ¯Λ, as well a determination ratio B(→BDK)/B(→BDπ). results are based full II III data samples totalling 15.3fb−1 at Υ(4S), supercede previously published results.Received February 2003Corrected 6 June 2007DOI:https://doi.org/10.1103/PhysRevD.68.052002©2003 American Physical Society
We report new high-precision measurements of $p(\stackrel{\ensuremath{\rightarrow}}{\ensuremath{\gamma}},\ensuremath{\gamma}),$ $p(\stackrel{\ensuremath{\rightarrow}}{\ensuremath{\gamma}},{\ensuremath{\pi}}^{0})$ and $p(\stackrel{\ensuremath{\rightarrow}}{\ensuremath{\gamma}},{\ensuremath{\pi}}^{+})$ cross section beam asymmetry angular distributions for photon energies in the range from 213 MeV to 333 MeV. The sections all three channels are locked together with a small common systematic...
Given the difficulty in developing waterflooding tight oil reservoirs, using huff-n-puff is an effective method to improve recovery. Online nuclear magnetic resonance (NMR) can detect change internal and water during core displacement process, imaging (MRI) real time. To reservoir development effectiveness, cores with different permeability were selected for a experiment. Combined online NMR equipment, fluid saturation, recovery rate, residual distribution studied. The experiments showed...
This paper investigates the characteristics of oil–water two-phase flow after volumetric fracturing horizontal wells in tight reservoirs. Based on a large-scale high-pressure, high-temperature experimental system for modeling well injection and production, pressure distribution, cumulative liquid recovery factor, production rate matrix model fractured during waterflooding process are compared analyzed. The results show that, both types reservoirs, fluid forms high-pressure zone low-pressure...
The air curtain system can collect the dust particles from hard-to-seal sources, which proves to be a feasible method for satisfying increasing prevention requirements in China. In this study, aiming at addressing escape problem tobacco stem loading point factory, rotational flow dust-collecting with size of 2m x was used collection. characteristics using original suction hood and developed were analyzed compared. Results show that external concentration when operated as high 83.65 mg/m3,...
We report on determinations of |Vub| resulting from studies the branching fraction and q^2 distributions in exclusive semileptonic B decays that proceed via b->u transition. Our data set consists 9.7x10^6 BBbar meson pairs collected at Y(4S) resonance with CLEO II detector. measure B(B0 -> pi- l+ nu) = (1.33 +- 0.18 0.11 0.01 0.07)x10^{-4} rho- (2.17 0.34 +0.47/-0.54 0.41 0.01)x10^{-4}, where errors are statistical, experimental systematic, systematic due to residual form-factor...
Colliding relativistic heavy ions can create a strong magnetic field. The authors perform theoretical calculations of the initial electromagnetic field in collisions isobaric nuclei at RHIC. They determine which observable correlations are most sensitive to so-called chiral effect, results from characteristics axial charge density address long-standing problem
Abstract Rocks contain multi-scale pore structures, with dimensions ranging from nano- to sample-scale, the inherent tradeoff between imaging resolution and sample size limits simultaneous characterization of macro-pores micro-pores using single-resolution imaging. Here, we developed a new hybrid digital rock modeling approach cope this open challenge. We first used micron-CT construct 3D macro-pore tight sandstone, then performed high-resolution SEM on three orthogonal surfaces sandstone...
Pore structure characterization and fractal analysis have great significance for understanding evaluating tight limestone reservoirs. In this work, the pore of is characterized combined with low-temperature nitrogen adsorption (LTNA) low-field nuclear magnetic resonance (NMR), dimension discussed based on LTNA NMR data. The results indicate that pores H3 H4 types, size distribution (PSD) type a wave ranging from 2 to 10 nm, PSD unimodal nm. transverse relaxation time (T2) spectrum shows...
We present the spatial distributions of electromagnetic fields ($\bf E$ and $\bf B$) anomaly $ \bf E \cdot B$ in Au+Au collisions at RHIC energy $\sqrt{s}$=200 GeV based on a multi-phase transport model. A dipolar distribution is observed non-central collisions. find that coupling dipole magnetic field can induce an electric quadrupole moment which further lead to difference elliptic flows between positive charged particles negative through final interactions. The centrality dependence...
To evaluate the fracturing effect and dynamic change process after volume with vertical wells in low permeability oil reservoirs, an oil-water two-phase flow model a well are built. On this basis, evaluation method of based on production data fluid backflow is established, used to analyze some field cases. The vicinity area main fracture divided into different stimulated regions. regions characterize stimulation strength scale network. conductivity region defined as product region. Through...
Isobar collisions which were thought to have the same background and different magnetic fields provide an opportunity verify chiral effect (CME) in relativistic heavy-ion collisions. However, first result from RHIC-STAR isobar experiment did not observe CME signal, but discovered that backgrounds are between $_{44}^{96}\textrm{Ru}+_{44}^{96}\textrm{Ru}$ $_{40}^{96}\textrm{Zr}+_{40}^{96}\textrm{Zr}$ We test eighteen cases of Woods-Saxon parameter settings resulting nuclear deformation or...
Abstract Based on the results of rate-controlled mercury-injection experiments, microscopic pore-throat structure characteristics tight sandstone in Sha-1 Section and limestone Da’anzhai Sichuan Basin were quantitatively characterized. The show that pore radius distribution oil reservoirs are similar. main is between 100~190 μm, average 160 μm. While throat quite different, samples relatively concentrated, sparse. There a good positive correlation permeability, but fractal dimension...
The search for the chiral magnetic effect (CME) in relativistic heavy-ion collisions helps us understand $\mathcal{CP}$ symmetry breaking strong interactions and topological nature of QCD vacuum. Since background signal CME have different correlations with spectator participant planes, a two-plane method has been proposed to extract fraction inside observable $\mathrm{\ensuremath{\Delta}}\ensuremath{\gamma}$ from experimental measurements relative two planes. Using multiphase transport model...