A5004052394- Methane Hydrates and Related Phenomena
- Geophysics and Gravity Measurements
- Spacecraft and Cryogenic Technologies
- Offshore Engineering and Technologies
- Astronomical Observations and Instrumentation
- Hydrocarbon exploration and reservoir analysis
- Astro and Planetary Science
- Scientific Research and Discoveries
- Seismic Imaging and Inversion Techniques
- Geomagnetism and Paleomagnetism Studies
- Astronomy and Astrophysical Research
- Geology and Paleoclimatology Research
- Inertial Sensor and Navigation
- Geological Modeling and Analysis
- Enhanced Oil Recovery Techniques
- Solar and Space Plasma Dynamics
- Planetary Science and Exploration
- Nuclear Physics and Applications
- Reservoir Engineering and Simulation Methods
- CO2 Sequestration and Geologic Interactions
- Drilling and Well Engineering
- Gamma-ray bursts and supernovae
- Geological and Geophysical Studies
- Geological and Geochemical Analysis
- Soil erosion and sediment transport
China University of Petroleum, Beijing
2019-2024
Kyushu University
2017-2024
State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation
2024
East China Normal University
2017-2018
Kyoto University
2016-2017
Shanghai Estuarine & Coastal Science Research Center
2017
Kyoto Katsura Hospital
2016
Second Institute of Oceanography
2015
University of Tasmania
2015
International Ocean Discovery Program
2015
ConspectusCarbon dioxide (CO2) capture and storage (CCS) is an important climate change mitigation option along with improved energy efficiency, renewable energy, nuclear energy. CO2 geosequestration, that is, to store under the subsurface of Earth, feasible because world's sedimentary basins have high capacity are often located in same region world as emission sources. How interacts connate water minerals focus this Account. There four trapping mechanisms keep pores rocks: (1) structural...
Molecular dynamic simulations were performed to determine the elastic constants of carbon dioxide (CO2) and methane (CH4) hydrates at one hundred pressure-temperature data points, respectively. The conditions represent marine sediments permafrost zones where gas occur. shear modulus Young's CO2 hydrate increase anomalously with increasing temperature, whereas those CH4 decrease regularly in temperature. We ascribe this anomaly kinetic behavior linear molecule, especially small cages. cavity...
Abstract To investigate the impact of changes in Changjiang catchment on estuarine coast‐shelf sedimentary system, variations transport, distribution, and budget 210 Pb sediment subaqueous delta (CSD) Zhejiang‐Fujian coastal mud belt (ZFCMB) system were analyzed before after impounding Three Gorges Dam (TGD). The results indicate that ex activity surficial sediments CSD‐ZFCMB decreased significantly 2003 vertical distribution CSD changed substantially due to intensified redistribution....
CO2 foam flooding technology can be used for geological storage of greenhouse gas while enhancing oil recovery. In this paper, we performed molecular dynamics simulations the film systems stabilized with an anionic surfactant sodium dodecyl sulfate (SDS). Compared to other factors a system, interfacial tension was as primary indicator evaluate stability SDS film. The effects concentration surfactant, temperature, and pressure on were studied. Based calculated results, discussed. It is found...
Abstract The geochemical analysis of sediment in the northern North Yellow Sea shows that derived from River could penetrate Warm Current and mingle with Yalu River‐derived coastal areas. Further indicates relative variations currents Current, which are regulated by winter monsoon, dominate process cross‐front transport. This suggests a dynamic mechanism involving During period strong northwesterly wind, north Shandong Peninsula disperse across fronts surface layer, when wind subsides,...
Abstract. In order to evaluate the impact of human activities (mainly dam building) on Changjiang River sediment discharging into sea, spatial–temporal variations in load different tributaries river were analyzed reveal quantity, grain size and composition patterns entering sea. The results show that timing reduction main stream was from those associated with downstream upstream sections, indicating influences sub-catchments. Four stepwise periods identified, i.e., 1956–1969, 1970–1985,...
IODP Expedition 350 was the first to be drilled in rear part of Izu-Bonin, although several sites had been arc axis fore-arc region; scientific objective understand evolution Izu arc, by drilling a deep-water volcaniclastic section with long temporal record (Site U1437). The is dominated series basaltic dacitic seamount chains up ~100-km roughly perpendicular front. Dredge samples from these are geochemically distinct front rocks, and undertaken this asymmetry. Site U1437 lies an ~20-km-wide...
Abstract It has been reported for a long time that methane hydrate presents strain hardening, whereas the strength of normal ice weakens with increasing after an ultimate strength. However, microscopic origin these differences is not known. Here, we investigated mechanical characteristics and by compressive deformation test using molecular dynamics simulations. shown exhibits hardening only if confined to certain finite cross-sectional area compression direction. For ice, it does present...
The Kumano Forearc Basin is located to the south-east of Kii Peninsula, Japan, overlying accretionary prism in Nankai Trough. presence gas hydrate submarine sediments forearc basin has resulted widespread occurrence bottom simulating reflectors (BSRs) on seismic profiles, and caused distinct anomalies logging data region. We estimated situ saturation from by using three methods: effective rock physics models, Archie's equation, empirical relationships between acoustic impedance (AI)...
Geochemical trapping (i.e., mineralization) is considered to be the most efficient way for long-term CO2 storage in order mitigate "global warming effect" induced by anthropogenic emission. The common view that reaction process takes hundreds of years; however, recent field pilots have demonstrated it only took 2 years convert injected carbonates reactive basaltic reservoirs. In this work, ab initio molecular dynamics simulations were employed investigate chemical reactions among CO2, H2O,...
As a result of the combined impacts climate change and long history human activities, Loess Plateau region in north-central China has experienced severe water shortage soil erosion, which have significantly influenced efforts for sustainable social development. It is critical to understand impact changes land use on yield provide scientific basis future conservation planning. The Luoyugou Watershed, located within third subregion Plateau, was selected evaluation its hydrological sensitivity...
To study on the significance and basis of acidolysis index to China marine gas hydrate exploring, since 2006, 111 samples derived from Leg 164 204 Ocean Drilling Program (ODP) were analyzed in experiment center Petroleum Exploration Research Institute obtain data hydrocarbon methane carbon isotopes by chromatography (GC) PE AutoSystem XL isotope mass spectrometer (IRMS) Finnigan MAT251. Through these, we reliability method characterize potential. The results show that has a stable...
Abstract. The variations in sediment load and composition from tributaries of the Changjiang River by human activities were analyzed. temporal-spatial main river under impact dam emplacement determined. We identified grain size variation accumulation areas (i.e., estuarine adjacent coastal waters) during different periods and, on such a basis, discussed about environmental change signature sedimentary record. results indicate that timing reduction stream was downstream to upstream sections,...