Pockmark activity inferred from pore water geochemistry in shallow sediments of the pockmark field in southwestern Xisha Uplift, northwestern South China Sea

2013 ◽  
Vol 48 ◽  
pp. 247-259 ◽  
Author(s):  
Min Luo ◽  
Linying Chen ◽  
Shuhong Wang ◽  
Wen Yan ◽  
Hongbin Wang ◽  
...  
Keyword(s):  
South China Sea ◽  
Pore Water ◽  
South China ◽  
Water Geochemistry ◽  
China Sea ◽  
Pore Water Geochemistry ◽  
Pockmark Field ◽  
Shallow Sediments

scholarly journals DSC Measurement on Formation and Dissociation Process of Methane Hydrate in Shallow Sediments from South China Sea

2019 ◽  
Vol 158 ◽  
pp. 5421-5426
Author(s):  
Shihui Ma ◽  
Jia-nan Zheng ◽  
Xin Lv ◽  
Qingping Li ◽  
Mingjun Yang ◽  
...  
Keyword(s):  
South China Sea ◽  
South China ◽  
Methane Hydrate ◽  
Dissociation Process ◽  
China Sea ◽  
Shallow Sediments

Differential Scanning Calorimetry Research of Hydrates Phase Equilibrium in Porous Media

2012 ◽  
Vol 512-515 ◽  
pp. 2122-2126
Author(s):  
Qiang Chen ◽  
Chang Ling Liu ◽  
Yu Guang Ye
Keyword(s):  
Differential Scanning Calorimetry ◽  
Porous Media ◽  
Phase Equilibrium ◽  
South China Sea ◽  
Pore Water ◽  
South China ◽  
Pure Water ◽  
Scanning Calorimetry ◽  
Equilibrium Conditions ◽  
China Sea

In this paper, we focused on the determination of phase equilibrium conditions of hydrates formed in the pore water and porous media from South China Sea. High pressure differential scanning calorimetry (HP DSC), a relatively new thermo-analytical technique was applied to this research. During the study, nitrogen hydrates and methane hydrates phase equilibrium conditions were determined in thewater-hydrates- gas (W-H-G) system. Then a series of experiments were carried on using core sample drilled from South China Sea to determine the phase equilibrium properties in pore water and porous media systems. It show that the hydrates phase equilibrium point is about 2K lower than in pure water from pressure range 10 to 30 MPa, due to the thermodynamic inhibition effect of brine solution.

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