scholarly journals Effect of permeability anisotropy on depressurization‐induced gas production from hydrate reservoirs in the South China Sea

2020 ◽  
Vol 8 (8) ◽  
pp. 2690-2707
Author(s):  
Peixiao Mao ◽  
Jiaxin Sun ◽  
Fulong Ning ◽  
Gaowei Hu ◽  
Yizhao Wan ◽  
...  
Keyword(s):  
South China Sea ◽  
South China ◽  
Gas Production ◽  
The South China Sea ◽  
The South ◽  
China Sea ◽  
Permeability Anisotropy ◽  
Hydrate Reservoirs

scholarly journals Strength Behaviors of Remolded Hydrate-Bearing Marine Sediments in Different Drilling Depths of the South China Sea

Energies ◽  
2019 ◽  
Vol 12 (2) ◽  
pp. 253 ◽  
Author(s):  
Yanghui Li ◽  
Tingting Luo ◽  
Xiang Sun ◽  
Weiguo Liu ◽  
Qingping Li ◽  
...  
Keyword(s):  
South China Sea ◽  
Marine Sediments ◽  
South China ◽  
The South China Sea ◽  
Triaxial Tests ◽  
Failure Strength ◽  
The South ◽  
Drilling Depth ◽  
China Sea ◽  
Hydrate Reservoirs

The mechanical behaviors of hydrate-bearing marine sediments (HBMS) drilled from the seafloor need to be understood in order to safely exploit natural gas from marine hydrate reservoirs. In this study, hydrates were prepared using ice powder and CH4 gas, and HBMS from the Shenhu area in the South China Sea were remolded using a mixed sample preparation method. A series of triaxial tests were conducted on the remolded HBMS to investigate the effects of soil particle gradation and the existence of hydrate on the mechanical properties of hydrate reservoirs. The results show that the stiffness and failure strength of HBMS decrease along with the decrease of mean particle size and soil aggregate morphology change at different drilling depths, and the reduction of failure strength is more than 20% when the drilling depth drops by 30 m. A better particle gradation of marine sediments may boost the stiffness and failure strength of HBMS. In addition, the existence of hydrate plays an important role in the strength behaviors of HBMS. The reduction of failure strength of HBMS with 30% initial hydrate saturation is more than 35% after complete hydrate dissociation.

scholarly journals Gas production from a silty hydrate reservoir in the South China Sea using hydraulic fracturing: A numerical simulation

2019 ◽  
Vol 7 (4) ◽  
pp. 1106-1122 ◽  
Author(s):  
Jiaxin Sun ◽  
Fulong Ning ◽  
Tianle Liu ◽  
Changling Liu ◽  
Qiang Chen ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
South China Sea ◽  
Hydraulic Fracturing ◽  
South China ◽  
Gas Production ◽  
The South China Sea ◽  
The South ◽  
China Sea ◽  
Hydrate Reservoir

scholarly journals Effects of Impermeable Boundaries on Gas Production from Hydrate Accumulations in the Shenhu Area of the South China Sea

Energies ◽  
2013 ◽  
Vol 6 (8) ◽  
pp. 4078-4096 ◽  
Author(s):  
Gang Li ◽  
Xiao-Sen Li ◽  
Keni Zhang ◽  
Bo Li ◽  
Yu Zhang
Keyword(s):  
South China Sea ◽  
South China ◽  
Gas Production ◽  
The South China Sea ◽  
The South ◽  
Shenhu Area ◽  
China Sea
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