A5043677244- Seismic Imaging and Inversion Techniques
- Seismic Waves and Analysis
- Hydraulic Fracturing and Reservoir Analysis
- Drilling and Well Engineering
- Geophysical Methods and Applications
- Hydrocarbon exploration and reservoir analysis
- Image and Signal Denoising Methods
- Rock Mechanics and Modeling
- Reservoir Engineering and Simulation Methods
- Ultrasonics and Acoustic Wave Propagation
- Underwater Acoustics Research
- earthquake and tectonic studies
- Electromagnetic Simulation and Numerical Methods
- Geological and Geophysical Studies
- Coal Properties and Utilization
- Sparse and Compressive Sensing Techniques
- Advanced Numerical Methods in Computational Mathematics
- Blind Source Separation Techniques
- Seismology and Earthquake Studies
- Plant Stress Responses and Tolerance
- Geological and Geochemical Analysis
- Advanced Computational Techniques and Applications
- Solar Thermal and Photovoltaic Systems
- GABA and Rice Research
- High-pressure geophysics and materials
Zhejiang A & F University
2023-2025
Hunan University
2024-2025
China University of Petroleum, Beijing
2011-2024
Qingdao National Laboratory for Marine Science and Technology
2018-2024
China University of Petroleum, East China
2015-2024
Laoshan Laboratory
2024
Hangzhou Medical College
2024
Changchun Institute of Technology
2023-2024
Hebei Academy of Agriculture and Forestry Sciences
2021-2024
Tangshan College
2024
Polarity reversals in PS and SP images of elastic reverse time migration will cause destructive interference the final stacked results, which may lead to an erroneous interpretation. We derive a polarity reversal correction based on analysis distribution images. The key aspect for is S-wave component. methods can be performed according actual patterns gathers. For 2D isotropic case, sign factor introduced represent component; this computed using energy flux density vector. present procedure...
The scalar images (PP, PS, SP, and SS) of elastic reverse time migration (ERTM) can be generated by applying an imaging condition as crosscorrelation pure wave modes. In conventional ERTM, Helmholtz decomposition is commonly applied in wavefield separation, which leads to a polarity reversal problem converted-wave because the opposite distributions S-wavefields. Polarity image will cause destructive interference when stacking over multiple shots. Besides, 3D case, curl calculation generates...
Cadmium (Cd) pollution is a serious threat to plant growth and human health. Although the mechanisms controlling Cd response have been elucidated in other species, they remain unknown Sorghum (Sorghum bicolor (L.) Moench), an important C4 cereal crop. Here, one-week-old sorghum seedlings were exposed different concentrations (0, 10, 20, 50, 100, 150 μM) of CdCl2 effects these on morphological responses evaluated. stress significantly decreased activities enzymes peroxidase (POD), superoxide...
Sparse domain thresholding filters operating in a sparse are highly effective removing Gaussian random noise under distribution assumption. Erratic noise, which designates non-Gaussian that consists of large isolated events with known or unknown distribution, also needs to be explicitly taken into account. However, conventional based on the least-squares (LS) criterion severely sensitive data high-amplitude and i.e., erratic makes suppression this type extremely challenging. In paper, we...
This paper presents a novel approach that aims to predict better reservoir quality regions from seismic inversion and spatial distribution of key properties well logs. The reliable estimation lithology parameters at sparsely located wells in the Sawan gas field is still considerable challenge. due three main reasons: (a) extreme heterogeneity depositional environments, (b) sand-shale intercalations, (c) repetition textural changes fine coarse sandstone very units. In this particular study,...
One of the important features elastic reverse-time migration is that it a depth domain prestack method based on vectorial wavefield. PP- and PS-wave images can be easily generated by implementing an imaging condition to pure wave modes separated with divergence curl operators in isotropic media. In 3D case, however, calculation will generate 3C vector S-wave, which makes impossible scalar PS image crosscorrelation condition. Therefore, we first analyzed polarity distribution S-wave concluded...
Abstract Large-scale atomic/molecular massively parallel simulator (LAMMPS) is a prevalent software package employed for molecular dynamics simulations, enabling the study of materials at atomic and scale. Its performance paramount in numerous industrial applications, driving need ongoing enhancements simulation speed efficiency. Previous works heavily rely on hardware accelerators, which lead to limited high costs. To address this, this work optimizes message passing interface (MPI) memory...
The study of the adsorption characteristics coal is great significance to gas prevention and CO 2 geological storage. To explore mechanism coal, this focuses on columnar anthracite. Adsorption tests rock under a range physical field conditions were conducted using volumetric method. anthracite for , CH 4 N gases different investigated Grand Canonical Monte Carlo (GCMC) Molecular Dynamics (MD) methods. results showed that capacities these three are in order > capacity increases with...
We evaluated a new spectral method and finite-difference (FD) for seismic-wave extrapolation in time. Using staggered temporal spatial grids, we derived wave-extrapolation operator using lowrank decomposition first-order system of wave equations designed the corresponding FD scheme. The proposed methods extend previously from cases constant density to those variable density. Dispersion analysis demonstrated that have high accuracy wide wavenumber range significantly reduce numerical...
ABSTRACT We generalize the classical theory of acoustoelasticity to porous case (one fluid and a solid frame) finite deformations. A unified treatment non‐linear strains in fluid‐saturated rocks is developed on basis Biot’s theory. strain‐energy function, formed with eleven terms, combined kinetic dissipation energies, yields Lagrange’s equations consequently wave equation medium. The velocities factors P‐ S‐waves are obtained as function 2nd‐ 3rd‐order elastic constants for hydrostatic...
Abstract Seismic exploration of deep oil/gas reservoirs involves the propagation seismic waves in high-pressure media. Traditional elastic wave equations are not suitable for describing such The theory acoustoelasticity establishes dynamic equation propagating prestressed media through constitutive relation using third-order constants. Many studies have been carried out on numerical simulations acoustoelastic waves, but mainly limited to 2D cases. A standard staggered-grid (SSG)...
Rice is one of the main food crops to guarantee world's security. Although rice a semi-aquatic crop, long-term flooding stress can also inhibit growth and reduce yield quality. Especially during germination period, rate was inhibited by stress, which resulted in low emergence rate. Therefore, this study, lines or cultivars with flood tolerance (C11) sensitivity (KY60) were screened, analyzed response mechanisms seed at different time points waterlogging through transcriptome metabolome...