Natural Gas Hydrate Systems

Cook, A.; Portnov, Alexey

doi:10.1016/b978-0-12-818562-9.00006-6

Cited by 1 publication

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References 63 publications

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“…Although BSRs are commonly used as an indicator of gas hydrates in contact with free gas trapped beneath, it has been shown that their absence does not necessarily imply absence of hydrates, as it likely also depends on the hydrate/gas saturation and the resultant impedance contrast at that interface. Some studies have shown that gas hydrates also commonly occur outside BSR regions which suggests that hydrates are more widespread than can be detected by seismic alone (e.g., Majumdar et al, 2016;Cook & Portnov, 2022).…”

Section: Bottom-simulating Reflectorsmentioning

confidence: 99%

Gas Hydrate Resource Potential Of Deepwater Sabah, Malaysia: A Preliminary Assessment

Madon¹

2022

BGSM

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Offshore NW Sabah is one of the localities identified in the United States Geological Survey (USGS) global hydrates database but not much work has been done on this potential source of energy for Malaysia and the surrounding region. The presence of gas hydrates in this area is mainly inferred from bottom-simulating reflectors (BSR) identified in seismic reflection profiles across the margin. BSRs have been mapped across almost the entire length of the deepwater fold-thrust belt in the Sabah Trough where they are commonly observed within the crests of fold-thrust anticlines. Based on an average geothermal gradient of 62.5 °C/km, the thickness of the gas hydrate stability zone is predicted to vary with water depth from zero at 640 m water depth to 300 m at 2900 m water depth. The total in-place methane resource from the Sabah gas hydrates is estimated to range from 72 to 852 trillion cu. ft. (TCF) (2.06 – 24.1 x 1012 m3) with a mean of 364 TCF (10.3 x 1012 m3 ) and a most likely (P50) value of 252 TCF (7.1 x 1012 m3). These preliminary estimates may seem large but they are comparable with those from other gas hydrate deposits in the region. More work is required to refine them in order to determine how much of the in situ volume is technically and economically recoverable.

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Section: Bottom-simulating Reflectorsmentioning

confidence: 99%

Gas Hydrate Resource Potential Of Deepwater Sabah, Malaysia: A Preliminary Assessment

Madon¹

2022

BGSM

View full text Add to dashboard Cite

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Natural Gas Hydrate Systems

Cited by 1 publication

References 63 publications

Gas Hydrate Resource Potential Of Deepwater Sabah, Malaysia: A Preliminary Assessment

Gas Hydrate Resource Potential Of Deepwater Sabah, Malaysia: A Preliminary Assessment

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