Abstract
Relatively, recently, in the last 20 years, it was discovered that methane hydrate (MH) deposits are globally distributed in the permafrost and oceans. Before 1960s, when first deposits were discovered in Siberian permafrost, former USSR, it was believed that MH can occur only in laboratory conditions or in vast parts of the Universe. Presently, it is presumed that this solid crystalline compounds in which CH4 molecules occupies the water ice lattices (nominal chemical formula of MH is C4H62O23) can serve as an energy source favorably to the all of the world remaining conventional hydrocarbon sources. Moreover, MH deposits can become vulnerable to climate changes, which were already occurring in geological past with tremendous consequences for the global life on earth. Thus, further development of advanced techniques is needed to enhance our abilities to better characterize, quantify, and monitor MH deposits. In this paper presented, 14-MeV neutrons with associated alpha particle imaging technique were used to quantify the amount of MH in the sample.
Highlights
Recently, in the last 20 years, it was discovered that methane hydrate (MH) deposits are globally distributed in the permafrost and oceans
Measurements were done in the empty basin and in the basin filled with the water
In total six samples were prepared: a) Samples of sea sediments/ quartz sand with pores filled with air b) Samples of sea sediments/quartz sand with pores filled with water c) Samples of sea sediments/quartz sand with pores filled with MH simulant
Summary
Recently, in the last 20 years, it was discovered that methane hydrate (MH) deposits are globally distributed in the permafrost and oceans. Measurements were done in the empty basin and in the basin filled with the water. In total six samples were prepared: a) Samples of sea sediments/ quartz sand with pores filled with air b) Samples of sea sediments/quartz sand with pores filled with water c) Samples of sea sediments/quartz sand with pores filled with MH simulant
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