EFFECT OF GRAIN CHARACTERISTICS ON THE BEHAVIOUR OF DISSEMINATED METHANE HYDRATE BEARING SEDIMENTS
Results of seismic surveys are routinely used to assess the presence of methane hydrate in deep ocean sediments. Accurate estimates of hydrate distribution and volume within the sediment are required to assess the potential of gas hydrate as an energy resource, driver for climate change or as a geot...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.517.9958 2023-05-15T17:11:43+02:00 EFFECT OF GRAIN CHARACTERISTICS ON THE BEHAVIOUR OF DISSEMINATED METHANE HYDRATE BEARING SEDIMENTS Emily Kingston Chris Clayton Jeffery Priest Angus Best The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.517.9958 http://eprints.soton.ac.uk/63129/1/ICGH_05812.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.517.9958 http://eprints.soton.ac.uk/63129/1/ICGH_05812.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://eprints.soton.ac.uk/63129/1/ICGH_05812.pdf bonding grain size grain shape disseminated hydrate text ftciteseerx 2016-01-08T09:57:42Z Results of seismic surveys are routinely used to assess the presence of methane hydrate in deep ocean sediments. Accurate estimates of hydrate distribution and volume within the sediment are required to assess the potential of gas hydrate as an energy resource, driver for climate change or as a geotechnical hazard. However, seismic velocity may be affected not only by the quantity and morphology of the hydrate, but also by the properties of the host sediment, for example its particle size distribution and grain shape. This paper reports the results of experiments conducted to determine dynamic geophysical properties such as compressional wave velocity (Vp), shear wave velocity (Vs) and their respective attenuation measurements (Qp-1 and Qs-1) of specimens with varying amounts of disseminated methane hydrate within materials with different particle shapes and sizes. The results show that the impact of disseminated hydrate is affected both by mean particle size and by particle sphericity, with the surface area of the sediment grains influencing the spread of hydrate throughout a material and therefore it’s bonding capabilities. The sediments with 10 % hydrate content show the highest surface areas correspond to the least increase in seismic velocity while sediments with low surface areas gives the most. Text Methane hydrate Unknown |
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bonding grain size grain shape disseminated hydrate |
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bonding grain size grain shape disseminated hydrate Emily Kingston Chris Clayton Jeffery Priest Angus Best EFFECT OF GRAIN CHARACTERISTICS ON THE BEHAVIOUR OF DISSEMINATED METHANE HYDRATE BEARING SEDIMENTS |
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bonding grain size grain shape disseminated hydrate |
description |
Results of seismic surveys are routinely used to assess the presence of methane hydrate in deep ocean sediments. Accurate estimates of hydrate distribution and volume within the sediment are required to assess the potential of gas hydrate as an energy resource, driver for climate change or as a geotechnical hazard. However, seismic velocity may be affected not only by the quantity and morphology of the hydrate, but also by the properties of the host sediment, for example its particle size distribution and grain shape. This paper reports the results of experiments conducted to determine dynamic geophysical properties such as compressional wave velocity (Vp), shear wave velocity (Vs) and their respective attenuation measurements (Qp-1 and Qs-1) of specimens with varying amounts of disseminated methane hydrate within materials with different particle shapes and sizes. The results show that the impact of disseminated hydrate is affected both by mean particle size and by particle sphericity, with the surface area of the sediment grains influencing the spread of hydrate throughout a material and therefore it’s bonding capabilities. The sediments with 10 % hydrate content show the highest surface areas correspond to the least increase in seismic velocity while sediments with low surface areas gives the most. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Emily Kingston Chris Clayton Jeffery Priest Angus Best |
author_facet |
Emily Kingston Chris Clayton Jeffery Priest Angus Best |
author_sort |
Emily Kingston |
title |
EFFECT OF GRAIN CHARACTERISTICS ON THE BEHAVIOUR OF DISSEMINATED METHANE HYDRATE BEARING SEDIMENTS |
title_short |
EFFECT OF GRAIN CHARACTERISTICS ON THE BEHAVIOUR OF DISSEMINATED METHANE HYDRATE BEARING SEDIMENTS |
title_full |
EFFECT OF GRAIN CHARACTERISTICS ON THE BEHAVIOUR OF DISSEMINATED METHANE HYDRATE BEARING SEDIMENTS |
title_fullStr |
EFFECT OF GRAIN CHARACTERISTICS ON THE BEHAVIOUR OF DISSEMINATED METHANE HYDRATE BEARING SEDIMENTS |
title_full_unstemmed |
EFFECT OF GRAIN CHARACTERISTICS ON THE BEHAVIOUR OF DISSEMINATED METHANE HYDRATE BEARING SEDIMENTS |
title_sort |
effect of grain characteristics on the behaviour of disseminated methane hydrate bearing sediments |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.517.9958 http://eprints.soton.ac.uk/63129/1/ICGH_05812.pdf |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_source |
http://eprints.soton.ac.uk/63129/1/ICGH_05812.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.517.9958 http://eprints.soton.ac.uk/63129/1/ICGH_05812.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766068496131686400 |