Description:
<jats:p><jats:bold>A<jats:sc>bstract</jats:sc>: </jats:bold> In this study, hydrates were generated in synthetic sediments in a laboratory cell. After hydrate formation took place and the sediment solidified, the samples were investigated both visually and by the use of nuclear magnetic resonance (NMR) imaging. The hydrates in this initial study were formed from model systems at low pressure. The results show hydrates distribution effects. Scans in the NMR apparatus were also made of the unfrozen samples to serve as a basis for comparison. NMR here maps the mobility of hydrogen atoms and their distribution in a sample. The relevant factor is the <jats:italic>density of mobile</jats:italic> H‐atoms, and this is shown to be about five times smaller for a volume of (for example) tetrahydrofuran (THF, C<jats:sub>4</jats:sub>H<jats:sub>8</jats:sub>O) hydrate than for the fluids of water and/or THF. This correlates very well with an observed signal decrease by a factor of six in an NMR‐studied sample after hydrate formation had taken place.</jats:p>