scholarly journals In Situ Raman Detection of Gas Hydrates Exposed on the Seafloor of the South China Sea

2017 ◽  
Vol 18 (10) ◽  
pp. 3700-3713 ◽  
Author(s):  
Xin Zhang ◽  
Zengfeng Du ◽  
Zhendong Luan ◽  
Xiujuan Wang ◽  
Shichuan Xi ◽  
...  
Keyword(s):  
South China Sea ◽  
South China ◽  
Gas Hydrates ◽  
The South China Sea ◽  
The South ◽  
China Sea ◽  
In Situ Raman

scholarly journals In situ Raman Quantitative Detection of the Cold Seep Vents and Fluids in the Chemosynthetic Communities in the South China Sea

2018 ◽  
Vol 19 (7) ◽  
pp. 2049-2061 ◽  
Author(s):  
Zengfeng Du ◽  
Xin Zhang ◽  
Zhendong Luan ◽  
Minxiao Wang ◽  
Shichuan Xi ◽  
...  
Keyword(s):  
South China Sea ◽  
South China ◽  
The South China Sea ◽  
Cold Seep ◽  
Quantitative Detection ◽  
The South ◽  
China Sea ◽  
In Situ Raman

In situ Raman detection of gas hydrate in the South China Sea

2018 ◽  
Author(s):  
Zengfeng Du ◽  
Yue Wu ◽  
Xin Zhang ◽  
Zhendong Luanxy ◽  
Xiujuan Wang ◽  
...  
Keyword(s):  
South China Sea ◽  
South China ◽  
Gas Hydrate ◽  
The South China Sea ◽  
The South ◽  
China Sea ◽  
In Situ Raman

scholarly journals Distribution of Atmospheric Aerosol over the South China Sea

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Shih-Jen Huang ◽  
Chen-Chih Lin
Keyword(s):  
South China Sea ◽  
South China ◽  
Aerosol Particles ◽  
Correlation Coefficients ◽  
The South China Sea ◽  
The South ◽  
China Sea ◽  
Fine Aerosol ◽  
Coarse Aerosol

The satellite-derived aerosol optical depth (AOD) data is used to investigate the distribution of aerosol over the South China Sea (SCS). High correlation coefficients are found between in situ AERONET data and satellite AOD measurements around the SCS with the highest coefficient of 0.9 on the Dongsha Island (i.e., Pratas Island). The empirical orthogonal function (EOF) analysis of AOD over the SCS shows that high AOD is always found around offshore areas of China, Indochina, Sumatra, and Borneo. Besides, spring is the major season of occurring coarse aerosol particles (AOT_C) but fine aerosol particles (AOT_F) occur yearly. The biomass burning is found in Indochina during March and April, and so it is in Sumatra and Borneo from August to October. The results also show that the AOT_F are higher during El Niño events, but higher AOT_C are found in La Niña years.

scholarly journals Seismic Expression of Polygonal Faults and Its Impact on Fluid Flow Migration for Gas Hydrates Formation in Deep Water of the South China Sea

2011 ◽  
Vol 2011 ◽  
pp. 1-7
Author(s):  
Duanxin Chen ◽  
Shiguo Wu ◽  
Xiujuan Wang ◽  
Fuliang Lv
Keyword(s):  
Fluid Flow ◽  
South China Sea ◽  
South China ◽  
Gas Hydrates ◽  
Three Dimensional ◽  
The South China Sea ◽  
Normal Faults ◽  
The South ◽  
China Sea ◽  
3D Seismic Data

Polygonal faults were identified from three-dimensional (3D) seismic data in the middle-late Miocene marine sequences of the South China Sea. Polygonal faults in the study area are normal faults with fault lengths ranging from 100 to 1500 m, fault spaces ranging from 40 to 800 m, and throws ranging from 10 to 40 m. Gas hydrate was inferred from the seismic polarity, the reflection strength, and the temperature-pressure equilibrium computation results. Gas hydrates located in the sediments above the polygonal faults layer. Polygonal faults can act as pathways for the migration of fluid flow, which can supply hydrocarbons for the formation of gas hydrates.

The Characteristics of Gas Hydrates Recovered from Shenhu Area in the South China Sea

2012 ◽  
Vol 307-310 ◽  
pp. 22-27 ◽  
Author(s):  
Changling Liu ◽  
Yuguang Ye ◽  
Qingguo Meng ◽  
Xingliang He ◽  
Hailong Lu ◽  
...  
Keyword(s):  
South China Sea ◽  
South China ◽  
Gas Hydrates ◽  
The South China Sea ◽  
The South ◽  
Shenhu Area ◽  
China Sea

scholarly journals Physical Properties of Gas Hydrate-Bearing Pressure Core Sediments in the South China Sea

Geofluids ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Jiangong Wei ◽  
Tingting Wu ◽  
Xiuli Feng ◽  
Jinqiang Liang ◽  
Wenjing Li ◽  
...  
Keyword(s):  
South China Sea ◽  
Physical Properties ◽  
Mechanical Behavior ◽  
South China ◽  
Gas Hydrates ◽  
Gas Hydrate ◽  
The South China Sea ◽  
The South ◽  
China Sea ◽  
Hydrate Bearing Sediments

Gas hydrates are a potential future energy resource and are widely distributed in marine sediments and permafrost areas. The physical properties and mechanical behavior of gas hydrate-bearing sediments are of great significance to seafloor stability and platform safety. In 2013, a large number of pressure cores were recovered during China’s second gas hydrate drilling expedition in the South China Sea. In this study, we determined the gas hydrate distribution, saturation, physical properties, and mechanical behavior of the gas hydrate-bearing sediments by conducting Multi-Sensor Core Logger measurements and triaxial and permeability tests. Disseminated gas hydrates, gas hydrate veins, and gas hydrate slabs were observed in the sediments. The gas hydrate distribution and saturation are spatially heterogeneous, with gas hydrate saturations of 0%–55.3%. The peak deviatoric stress of the gas hydrate-bearing sediments is 0.14–1.62 MPa under a 0.15–2.3 MPa effective confining stress. The permeability is 0.006– 0.095 × 10 − 3   μ m 2 , and it decreases with increasing gas hydrate saturation and burial depth.

Application of AVO analysis to gas hydrates identification in the northern slope of the South China Sea

2014 ◽  
Vol 62 (4) ◽  
pp. 802-817 ◽  
Author(s):  
Rui Yang ◽  
Pin Yan ◽  
Nengyou Wu ◽  
Zhibin Sha ◽  
Jinqiang Liang
Keyword(s):  
South China Sea ◽  
South China ◽  
Gas Hydrates ◽  
The South China Sea ◽  
Northern Slope ◽  
The South ◽  
China Sea ◽  
Avo Analysis

Estimation of China's production efficiency of natural gas hydrates in the South China Sea

2018 ◽  
Vol 203 ◽  
pp. 1-12 ◽  
Author(s):  
Zhaoyang Kong ◽  
Qingzhe Jiang ◽  
Xiucheng Dong ◽  
Jiang Wang ◽  
Xin Wan
Keyword(s):  
Natural Gas ◽  
South China Sea ◽  
South China ◽  
Gas Hydrates ◽  
Production Efficiency ◽  
The South China Sea ◽  
The South ◽  
China Sea ◽  
Natural Gas Hydrates
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