The Use of Huff and Puff Method in a Single Horizontal Well in Gas Production from Marine Gas Hydrate Deposits in the Shenhu Area of the South China Sea

2010 ◽  
Author(s):  
Gang Li ◽  
George J. Moridis ◽  
Keni Zhang ◽  
Xiaosen Li
Keyword(s):  
South China Sea ◽  
South China ◽  
Gas Hydrate ◽  
Horizontal Well ◽  
Gas Production ◽  
The South China Sea ◽  
Shenhu Area ◽  
China Sea ◽  
Marine Gas Hydrate ◽  
Gas Hydrate Deposits

Evaluation and comparison of gas production potential of the typical four gas hydrate deposits in Shenhu area, South China sea

Energy ◽  
2020 ◽  
Vol 204 ◽  
pp. 117955 ◽  
Author(s):  
Li Huang ◽  
Zhenyuan Yin ◽  
Yizhao Wan ◽  
Jianye Sun ◽  
Nengyou Wu ◽  
...  
Keyword(s):  
South China Sea ◽  
South China ◽  
Gas Hydrate ◽  
Gas Production ◽  
Production Potential ◽  
Shenhu Area ◽  
China Sea ◽  
Gas Hydrate Deposits

scholarly journals Reservoir stability in the process of natural gas hydrate production by depressurization in the shenhu area of the south China sea

2018 ◽  
Vol 5 (6) ◽  
pp. 631-643 ◽  
Author(s):  
Yizhao Wan ◽  
Nengyou Wu ◽  
Gaowei Hu ◽  
Xin Xin ◽  
Guangrong Jin ◽  
...  
Keyword(s):  
Natural Gas ◽  
South China Sea ◽  
South China ◽  
Gas Hydrate ◽  
The South China Sea ◽  
Natural Gas Hydrate ◽  
The South ◽  
Shenhu Area ◽  
China Sea

Characterization of hydrate-bearing sediments recovered from the Shenhu area of the South China Sea

2017 ◽  
Vol 5 (3) ◽  
pp. SM13-SM23 ◽  
Author(s):  
Changling Liu ◽  
Qingguo Meng ◽  
Gaowei Hu ◽  
Chengfeng Li ◽  
Jianye Sun ◽  
...  
Keyword(s):  
South China Sea ◽  
South China ◽  
Gas Hydrate ◽  
Hydration Number ◽  
The South China Sea ◽  
Crystal Lattice Parameter ◽  
The South ◽  
Shenhu Area ◽  
X Ray ◽  
China Sea

The characteristics of the hydrate-bearing layer are important parameters for gas hydrate exploration and exploitation, which can be provided by laboratory analysis. We have carried out a systematic analysis of modern instruments, including the laser grain size analyzer, X-ray computed tomography, scanning electron microscopy, X-ray diffraction (XRD), Raman spectroscopy, gas chromatography, and isotope mass spectrometry, on the hydrate-bearing sediment samples recovered from the Shenhu area in the South China Sea in 2016. We focused on the structure, hydration number, and gas composition of the gas hydrate samples. We also evaluated the effects of sediments on the occurrence and distribution of gas hydrate. Our results showed that the sediments are much finer than those recovered from the Shenhu area in 2007. Some samples are found to contain calcareous microfossils and foraminifera, which are beneficial for dispersed gas hydrate formation. Whereas the only visible hydrate sample (FC4) has not found any bioclast in the sediments. Based on the Raman data and the XRD analysis, the gas hydrates demonstrate typical structure I (sI) hydrates, with cage occupancies of methane molecules higher than 99.3% in large cages and 81.5%–91.4% in small cages, respectively. The crystal lattice parameter is 11.89 Å with the hydration number being approximately 6.0. Methane is obviously the dominant component, ranging from 97.6% to 99.95% in these samples. Comprehensive study of carbon and hydrogen isotopes suggests that the hydrate-bound gases are from biogenic and thermogenic gases in the study area.

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