Multiple physical properties of gas hydrate-bearing sediments recovered from Alaska North Slope 2018 Hydrate-01 Stratigraphic Test Well

2021 ◽  
Vol 123 ◽  
pp. 104748
Author(s):  
Jun Yoneda ◽  
Yusuke Jin ◽  
Michihiro Muraoka ◽  
Motoi Oshima ◽  
Kiyofumi Suzuki ◽  
...  
Keyword(s):  
Physical Properties ◽  
Gas Hydrate ◽  
North Slope ◽  
Hydrate Bearing Sediments

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.

scholarly journals Physical properties of sediment from the Mount Elbert Gas Hydrate Stratigraphic Test Well, Alaska North Slope

2011 ◽  
Vol 28 (2) ◽  
pp. 361-380 ◽  
Author(s):  
William Winters ◽  
Michael Walker ◽  
Robert Hunter ◽  
Timothy Collett ◽  
Ray Boswell ◽  
...  
Keyword(s):  
Physical Properties ◽  
Gas Hydrate ◽  
North Slope

scholarly journals Physical Properties of Gas Hydrates: A Review

2010 ◽  
Vol 2010 ◽  
pp. 1-12 ◽  
Author(s):  
Jorge F. Gabitto ◽  
Costas Tsouris
Keyword(s):  
Natural Gas ◽  
Physical Properties ◽  
Gas Hydrates ◽  
Gas Hydrate ◽  
Energy Resource ◽  
Field Measurements ◽  
Detection Methods ◽  
Natural Gas Hydrate ◽  
Methane Gas ◽  
Hydrate Bearing Sediments

Methane gas hydrates in sediments have been studied by several investigators as a possible future energy resource. Recent hydrate reserves have been estimated at approximately 1016 m3 of methane gas worldwide at standard temperature and pressure conditions. In situ dissociation of natural gas hydrate is necessary in order to commercially exploit the resource from the natural-gas-hydrate-bearing sediment. The presence of gas hydrates in sediments dramatically alters some of the normal physical properties of the sediment. These changes can be detected by field measurements and by down-hole logs. An understanding of the physical properties of hydrate-bearing sediments is necessary for interpretation of geophysical data collected in field settings, borehole, and slope stability analyses; reservoir simulation; and production models. This work reviews information available in literature related to the physical properties of sediments containing gas hydrates. A brief review of the physical properties of bulk gas hydrates is included. Detection methods, morphology, and relevant physical properties of gas-hydrate-bearing sediments are also discussed.

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