A5100368471- Hydrocarbon exploration and reservoir analysis
- Atmospheric and Environmental Gas Dynamics
- Coal Properties and Utilization
- Hydraulic Fracturing and Reservoir Analysis
- Paleontology and Stratigraphy of Fossils
- NMR spectroscopy and applications
- Geological and Geophysical Studies
- Geology and Paleoclimatology Research
- Geological Studies and Exploration
- Geochemistry and Geologic Mapping
- Silicon Carbide Semiconductor Technologies
- GaN-based semiconductor devices and materials
- Semiconductor materials and devices
- Methane Hydrates and Related Phenomena
- Acoustic Wave Phenomena Research
- Geological and Geochemical Analysis
- Nuclear physics research studies
- Nuclear Physics and Applications
- Petroleum Processing and Analysis
- Magnetic properties of thin films
- Radiation Shielding Materials Analysis
- Data Management and Algorithms
- Karst Systems and Hydrogeology
- Icing and De-icing Technologies
- Micro and Nano Robotics
China University of Petroleum, Beijing
2015-2024
Hangzhou Quality and Technical Supervision and Testing Institute
2023
Shanghai Institute of Geological Survey
2022
Donghua University
2022
Peking University
2021
Wuhan University of Technology
2019
Tongji University
2018
Tianjin University of Science and Technology
2014
Xi'an Jiaotong University
2014
University of Richmond
2012
Describing the characteristics of shale pore structure is vital for assessment reservoir, which has significant influence on storage and seepage mechanisms gas shale. To profoundly understand continental fractal analysis was performed 45 samples from Ordos Basin, NW China, via low-pressure N2 adsorption experiments. The isotherms revealed that slit-shaped pores are dominant among geometric shapes pores. During molecules process, different were displayed at two regions where relative...
Gallium Nitride enhancement-mode high electron mobility transistors (GaN E-HEMTs) can achieve relatively high-efficiency and high-frequency in hard-switching mode. One particular reason is that GaN E-HEMTs obtain zero reverse-recovery loss also a period. For silicon (Si) MOSFETs, it has been well-known issue their Q <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">rr</sub> too big to switch the transistor Researchers have made extensive efforts...
As an efficient clean energy, natural gas hydrate (NGH) has become a hot topic in recent researches. Since 1990s, China made great achievements and progress NGH exploration the South Sea (SCS), including determination of favorable distribution areas strata thickness, identification dual source for accumulation, evaluation prospective contents, verification widespread existence, confirmation technical recoverability resources. However, there are three major challenges studies. First, all 24...
The water gushing disaster in karst unfavorable geology has always been one of the difficult problems to be solved engineering field. In view such as with relatively high-water flow velocity and seepage at joints underground diaphragm wall which is concealed, a treatment method for disasters based on physical detection combined grouting proposed. main steps this are follows: Firstly, according analysis results geological investigations, by selecting appropriate means, accurately locate...
A vital factor influencing shale oil exploration in lacustrine reservoirs is mobility, which closely associated with the pore structure and fluid properties, especially for low-maturity shales China. In this study, mobility potential Middle Eocene Shahejie Formation (MES shales) of Nanpu Sag Bohai Bay Basin are evaluated by using nuclear magnetic resonance (NMR) experiments. The MES have low porosity NMR ranging from 4.29–7.41%, saturation ranges 9.35–36.09%. types various including...
The majority of oil and gas resources in the world are related to saline sediments, which mainly occur sedimentary strata form cap rocks or salt-associated shales. A large number shale have been discovered sediments Cenozoic terrestrial lake basin China. hydrocarbon generation ability reservoir capacity control generation. is characterized by pore type, structure porosity. Most China's belong salt-bearing formations. role gypsum-salt formation evolution organic matter (OM) such formations...
Mature-stage lacustrine shale was sampled from the Late Triassic Chang 7 member in Ordos Basin, China. Two aliquots separated original sample were heated by hydrous pyrolysis to high- and overmature stages. The three samples analyzed nanometer-scale resolution X-ray computed tomography (nano-CT). From distribution geometry of organic matter pores (OM pores) two-dimensional (2-D) nano-CT images, this study calculated total content porosity OM (2-D TOC 2-D porosity, respectively) characterized...
Deep shales refer to the with buried depth greater than 3500 m. Yields of shale gases depend on form their occurrence at depth, but major controlling factors gas state in deep high-over mature are poorly understood. Using Longmaxi Formation as an example, characteristics were quantitatively characterized, and effects temperature, pressure, pore structure, organic matter abundance studied by using control variable method. The results show that is mainly organic-rich argillaceous shale,...
In order to better understand hydrocarbon enrichment in shales with various thermal maturities, we experimentally evaluate the geological characteristics of Third Member Shahejie Formation Bohai Bay Basin and draw comparisons Longmaxi Sichuan Basin. The kerogens are mainly similar types I II occur dominantly micro- nanopores. A difference maturity results significant differences shale compositions, pore structure, characteristics. contains a large proportion high TOC material, mesopores...
Vibro-acoustic responses of cylindrical shells immersed in ice-covered water are typical acoustic-structure coupling problems. The dynamic model the shell was established by Finite Element Method (FEM) to obtain vibration response. elastic constitutive material adopted simulate ice model. acoustic constructed Boundary (BEM) gain underwater radiation. A series boundary conditions were defined tackle accurate contact interactions shell, fluid field and Comparative analysis with vibro-acoustic...
Gallium Nitride enhancement-mode high electron mobility transistors (GaN E-HEMTs) are being designed into power electronic systems due to the fast switching capability. The GaN-based converters obtain higher efficiency, smaller size, and lower cost from system point of view. On other hand, fast-switching characteristic GaN also introduces challenge short-circuit protection (SCP) over-current (OCP). traditional SCP/OCP methods either too slow or not practical device. Therefore, an alternative...
Gas-bearing property evaluation and main controlling factor analysis have remained a concern in shale gas research. The application of principal component analysis, an important mathematical statistical method, gas-bearing the Longmaxi Weirong area, Sichuan Basin, was examined. exhibits high heterogeneity, manifested organic matter abundance, mineral composition, pore structure. Seven geological factors, including temperature, pressure, TOC content, clay brittle volume, specific surface area...