A5100641006- Seismic Imaging and Inversion Techniques
- Hydraulic Fracturing and Reservoir Analysis
- Hydrocarbon exploration and reservoir analysis
- Rock Mechanics and Modeling
- Drilling and Well Engineering
- Seismic Waves and Analysis
- Methane Hydrates and Related Phenomena
- Geophysical Methods and Applications
- Microbial bioremediation and biosurfactants
- Toxic Organic Pollutants Impact
- CO2 Sequestration and Geologic Interactions
- Public-Private Partnership Projects
- Construction Project Management and Performance
- Composite Material Mechanics
- Reservoir Engineering and Simulation Methods
- Remote Sensing and Land Use
- Plant responses to elevated CO2
- Environmental Impact and Sustainability
- Pesticide and Herbicide Environmental Studies
- Education Systems and Policy
- Dam Engineering and Safety
- Health, Environment, Cognitive Aging
- Plant Ecology and Soil Science
- Public Procurement and Policy
- Crop Yield and Soil Fertility
Wuhan University of Technology
2007-2025
Research Institute of Petroleum Exploration and Development
2015-2024
Institute of Soil and Water Conservation
2020-2024
Chinese Academy of Sciences
2020-2024
Ministry of Water Resources of the People's Republic of China
2020-2024
Sichuan Normal University
2024
Sanya University
2024
China National Petroleum Corporation (China)
2023
Shanghai University
2013-2016
Changsha Mining and Metallurgy Research Institute (China)
2011
SUMMARY Detection of intersecting open fractures is an important task in many earth science domains. To quantify the seismic responses fluid-saturated porous rock with fractures, we develop a theoretical model based on Biot's equations dynamic poroelasticity. The dispersion, attenuation and frequency-dependent anisotropy due to joint effects fracture–background wave-induced fluid flow (FB-WIFF), fracture–fracture (FF-WIFF), as well elastic scattering are investigated. numerical results...
Accurate characterization of carbonate pore types is great significance for seismic reservoir characterization. However, the existing pore-type inversion methods cannot characterize coexistence three main (vuggy pores, matrix and cracks) each modeling point because they apply a simple iterative procedure without using S-wave velocity. To overcome this problem, we develop simultaneous triple (TPTI) strategy to estimate porosities different from P- velocities global optimization technique...
The attenuation of seismic signal is usually characterized in the frequency domain using Fourier power spectra and often usefully by average measures, such as center or spectral mean. analysis, however, suffers from time-frequency resolution problems. Wavelet analysis has better localization offers superior decomposition. In this paper, we show that can be scalogram (also called energy density) wavelet domain. A single scale encompasses a band. relates absorption to peak-scale variations....
ABSTRACT Differential effective medium theory has been applied to determine the elastic properties of porous media. The ordinary differential equations for bulk and shear moduli are coupled it is more difficult obtain accurate analytical formulae about dry rock. In this paper, in order decouple these we first substitute an approximation dry‐rock modulus ratio into equation derive solutions rock with three specific pore shapes: spherical pores, needle‐shaped pores penny‐shaped cracks. Then,...
Numerous models have been developed for prediction of gas hydrate saturation based on the microstructural relationship between hydrates and sediment grains. However, quantification morphology from elastic properties has hindered by failing to account complex distributions. Here, we develop a generalized effective medium model applying modified Hashin-Shtrikman bounds newly cementation theory. This is validated experimental data synthetic methane tetrahydrofuran hydrates. Good comparison...
Abstract Carbonate reservoirs exhibit strong heterogeneity in the distribution of pore types that can be quantitatively characterized by applying Xu–Payne multi-porosity model. However, there are some prerequisites to this model porosity and saturation need provided. In general, these application conditions difficult satisfy for seismic data. order overcome problem, we present a two-step method estimate type carbonate from step one, space reservoir is equivalent single-porosity system with...
There are two points of view with regard to the relationship between dry-framework modulus ratio bulk shear and porosity. One view, assumed by most empirical models such as critical porosity model, is that independent However, this assumption sometimes in disagreement experiments. Another supported differential effective-medium (DEM) theory depends on Ordinary equations (ODE) for moduli coupled, there no analytical formula dry porous rock. By assuming difference polarization factors...
Abstract By integrating Gassmann equations with the dry rock frame model, which is called DEM analytical derived from differential effective medium theory, this paper presents a method for pore structure evaluation and shear wave velocity prediction aspect ratios inverted P‐wave (and S‐wave) velocity. First, we build link among S‐wave velocity, density, porosity, saturation mineral compositions through model. Then, by assuming that porous contains spheroidal pores single ratio, apply...
Abstract The classic differential effective medium (DEM) theory can be used to determine the elastic properties of porous medium, but final multiple‐porosity rock depend on order adding different pore‐type inclusions due lack DEM equations for rock. This paper first derives both Zimmermann's and Norris's versions from Kuster‐Toksöz theory. moduli predicted by version never violate Hashin‐Shtrikman bounds while those in some cases. Then, we derive analytical solutions bulk shear dry applying...
The greenhouse effect has a negative impact on social and economic development. Analyzing the factors influencing industrial carbon emissions accurately predicting peak of to achieve neutrality is therefore vital. annual data from 2000 2022 were used study emission path reduction. In this study, gray correlation method stepwise regression explore effective that met significance test STIRPAT expansion model was constructed analyze characteristics in Sichuan-Chongqing region. Finally, changing...
Abstract Estimation of the porosity a hydrate reservoir is essential for its exploration and development. However, estimation accuracy was usually less certain in most previous studies that simply assumed there linear relationship between single‐elastic wave velocities or other rock physical parameters, thus affecting evaluation reserves. In three‐phase Biot‐type equations are fundamental to model hydrate‐bearing reservoir, porosity, alongside saturation, mineral constituent proportions...