Estimation of gas hydrate saturation at the slope in the northwest of South China Sea

2019 ◽  
Vol 37 (15) ◽  
pp. 1777-1787
Author(s):  
Pengqi Liu ◽  
Sam Zandong Sun ◽  
Liguo Hu
Keyword(s):  
South China Sea ◽  
South China ◽  
Gas Hydrate ◽  
China Sea ◽  
Hydrate Saturation

scholarly journals Elevated gas hydrate saturation within silt and silty clay sediments in the Shenhu area, South China Sea

2011 ◽  
Vol 116 (B5) ◽  
Author(s):  
Xiujuan Wang ◽  
Deborah R. Hutchinson ◽  
Shiguo Wu ◽  
Shengxiong Yang ◽  
Yiqun Guo
Keyword(s):  
South China Sea ◽  
South China ◽  
Gas Hydrate ◽  
Silty Clay ◽  
Shenhu Area ◽  
China Sea ◽  
Hydrate Saturation

Undrained triaxial tests on water-saturated methane hydrate-bearing clayey-silty sediments of the South China Sea

2020 ◽  
Author(s):  
Lei Wang ◽  
Yanghui Li ◽  
Shi Shen ◽  
Tao Liu ◽  
Weiguo Liu ◽  
...  
Keyword(s):  
South China Sea ◽  
South China ◽  
Gas Hydrate ◽  
Methane Hydrate ◽  
The South China Sea ◽  
The South ◽  
China Sea ◽  
Fine Grained ◽  
Hydrate Saturation ◽  
Water Saturated

Approximately 90% of gas hydrates are buried in fine-grained sediments on earth, especially in the South China Sea. The potential instability of the fine-grained sediments induced by hydrate dissociation requires us to investigate the shear strength and pore pressure response of the sediments during the hydrate recovery. To date, most of studies focused on the undrained mechanical behavior of gas hydrate-bearing sand or gas hydrate-free clay, and few studies examined gas hydrate-bearing fine-grained sediments. According to the low-permeability and water-saturated characteristics of the sediments in the South China Sea, we performed a series of undrained triaxial shear tests on water-saturated methane hydrate-bearing clayey-silty sediments in this area. The experiment results show that the failure strength of methane hydrate-bearing sediments (MHBSs) increases with the increase in hydrate saturation and initial effective mean stress. The excess pore water pressure of MHBSs remains positive during shear. The cohesion in Mohr-Coulomb model increases with the increase in hydrate saturation, while the internal friction angle in Mohr-Coulomb model has little dependence on the hydrate saturation.

Estimation of the gas hydrate saturation in the South China Sea

2021 ◽  
Vol 14 (14) ◽  
Author(s):  
Dongmei Tian ◽  
Tao Liu ◽  
Xuewei Liu ◽  
Shengxiong Yang
Keyword(s):  
South China Sea ◽  
South China ◽  
Gas Hydrate ◽  
The South China Sea ◽  
The South ◽  
China Sea ◽  
Hydrate Saturation

Gas hydrate saturation from acoustic impedance and resistivity logs in the Shenhu area, South China Sea

2011 ◽  
Vol 28 (9) ◽  
pp. 1625-1633 ◽  
Author(s):  
Xiujuan Wang ◽  
Shiguo Wu ◽  
Myung Lee ◽  
Yiqun Guo ◽  
Shengxiong Yang ◽  
...  
Keyword(s):  
South China Sea ◽  
South China ◽  
Gas Hydrate ◽  
Acoustic Impedance ◽  
Shenhu Area ◽  
China Sea ◽  
Resistivity Logs ◽  
Hydrate Saturation
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