A5053349176- Seismic Imaging and Inversion Techniques
- Hydrocarbon exploration and reservoir analysis
- Hydraulic Fracturing and Reservoir Analysis
- Drilling and Well Engineering
- Seismic Waves and Analysis
- Reservoir Engineering and Simulation Methods
- Methane Hydrates and Related Phenomena
- Geological and Geophysical Studies
- NMR spectroscopy and applications
- Offshore Engineering and Technologies
- Geophysical and Geoelectrical Methods
- Adipokines, Inflammation, and Metabolic Diseases
- Vitamin D Research Studies
- Underwater Acoustics Research
- Geochemistry and Geologic Mapping
- Geological formations and processes
- Geotechnical and Geomechanical Engineering
- Image and Signal Denoising Methods
- Geological Studies and Exploration
- earthquake and tectonic studies
- Geology and Paleoclimatology Research
- Seismology and Earthquake Studies
- Rock Mechanics and Modeling
- Electromagnetic Scattering and Analysis
- Geophysics and Sensor Technology
Texas A&M University
2015-2024
National University of Defense Technology
2024
Hebei University
2023
Mitchell Institute
2012-2022
Heilongjiang University of Chinese Medicine
2022
Donghua University
2021
University of Science and Technology Beijing
2018
Tsinghua University
2015
Sinopec (China)
2011
Université Laval
2010
In laboratory experiments we measured the saturation effects on acoustic properties in carbonates and results question some theoretical assumptions. particular, these under dry wet conditions show that shear moduli do not remain constant during saturation. This change modulus puts Gassmann's assumption of a into also explains why velocities predicted with Gassmann equation can be lower or higher than velocities.
Mild Cognitive Impairment (MCI) represents a critical stage between normal aging and dementia, with limited effective interventions currently available. This study investigated the effects of Kai-Xin-San (KXS), traditional Chinese herbal formula, on cognitive function, neuroinflammation, pyroptosis in senescence-accelerated prone 8 (SAMP8) mouse model MCI. SAMP8 mice were treated KXS for weeks, followed by behavioral tests, biochemical analyses, histological examinations. significantly...
The mechanism of slope failure associated with overpressure that is caused by hydrocarbon migration and accumulation remains unclear. High-resolution seismic data gas hydrate drilling collected from the Shenhu field (site SH5) offer a valuable opportunity to study relations between submarine flow ∼2 km-diameter chimney developed beneath site SH5 where none hydrates had been recovered sampling despite presence distinct bottom simulating reflectors (BSRs) favorable indication. resulted...
One fundamental difficulty in low-frequency subsurface electromagnetic exploration is the breakdown phenomenon numerical computation. It makes discretized linear system very poorly conditioned and thus difficult to solve. This issue present both integral equation partial differential solution methods, has attracted many researchers who have proposed various methods overcome this difficulty. In paper, we propose a new mixed spectral element method (mixed SEM) eliminate problem apply solve...
Abstract The chemical changes occurring upon rotational welding with dowels of Canadian wood species sugar maple (Acer saccharum) and yellow birch (Betula alleghaniensis) were examined by pyrolysis-GC/MS, DSC XPS anlayses. analyses performed separately on substrate (reference wood) welded material indicate that the differences in mechanical performances two woods are due mainly to original lignin structures as well temperatures determined for species. more pronounced guaiacyl character seems...
Mud volcanoes are important to understand hydrocarbon research and exploration, crustal movement neotectonic activity, geological engineering, climate change. They widely distributed along the Alps‐Tethys suture zone, Pacific belt, continental slopes. Previous detailed studies on mud concentrated mostly onshore areas. Recent developments in geophysical technology have opened vast deepwater areas for volcanoes. Based multibeam bathymetry, multichannel seismic reflection, gravity, magnetics...
Acoustic wave velocity has been commonly utilized to predict subsurface geopressure using empirical relations. is, however, affected by many factors. To estimate pore pressure accurately, we here propose use elastic rock physics models understand and analyze quantitatively the various contributions from these different factors affecting velocity. We report a closed-form relationship between frame flexibility factor (γ) in model differential pressure, which presents major control of on...
Accurate estimation of permeability for reservoir simulation and production is challenging in carbonate rocks due to the diversified pore structures resulting from deposition diagenetic modification. A significant amount residue gas expected Puguang field, China. We use a shear-frame flexibility factor [Formula: see text] rock-physics model as an index quantify its spatial variation structure constrain this field. The pore-structure established used classify various permeability-porosity...
Mud volcanoes and other fluid seepage pathways usually transport sufficient gas for the formation of reservoirs are beneficial to accumulation hydrate. On hand, thermal effects mud can constrain occurrence hydrates. Current field measurements indicate that anomalies impact distribution hydrates associated with volcanoes. However, due lack quantitative analysis volcano flow evolution, it is difficult effectively reveal in development areas estimate their resource potential. This study took...
Knowledge of the composition (mineral and fluid proportions) rock formation lithologies is important for petrophysical physics analysis. The mineralogy a can be estimated by solving system linear equations that relate class geophysical log measurements to properties known minerals fluids. This method useful carbonate rocks with complex mineralogies wide range other lithologies. Although this inversion well known, there are no interactive, open-source programs routinely estimating from...
Knowledge of the clay content in clastic reservoirs is important for predicting reservoir quality and properties. We used a microgeometrical model shaly sand sandy shale to define critical-clay-volume fraction explain dependence bulk modulus on content. found that concept pore-aspect ratio relating was interpret elastic behavior sandstone. An abrupt decrease from about 0.23 0.04 observed where clay-volume greater than critical value 32% studied data set. At 32%, an increase pore...
Mud volcanoes can provide important information about the underlying strata, hydrocarbon accumulation, and recent neotectonic movements in an area. The fluids erupting from mud their formation evolution. ion concentration hydrogen oxygen isotopes of that were erupted three volcano groups, Baiyanggou, Aiqigou, Dushanzi, nearby rivers southern margin Junggar basin, northwestern China, are studied. concentrations Na Cl clearly elevated, displayed as Na-Cl type. δD δ18O values similar between...