Methane hydrate formation comparisons in media with and without a water source supply

摘要

Water-is-a-necessary-element-during-gas-hydrate-formations.-Therefore,-by-analyzing-water-depletion-changes-in-media,-the-reaction-characteristics-of-methane-hydrate-in-media-can-be-studied.-In-this-study,-two-water-sources-supplying-some-liquid-water-which-may-be-consumed-by-the-methane-hydrate-formation-reactions-were-designed-and-assembled.-Using-them,-the-full-formation-processes-of-methane-hydrate-was-studied.-Experimental-results-show-the-following:-If-heat-released-from-nucleation-reaction-of-methane-hydrate-is-diffused-rapidly,-the-nucleation-ratios-will-be-enhanced-discernibly.-While-the-hydrate-is-formed,-a-force-is-generated-that-sucks-fresh-water-from-the-source-into-the-vicinity-of-the-hydrate,-slowing-down-the-cementation-process-and-causing-some-hydrate-grain-dissociation.-As-a-result-of-cementation-differences,-the-hydrate-reaction-processes-with-different-water-sources-present-linear-or-quadratic-equation-characteristics.-After-a-few-repeated-dissociation-and-formation-processes-of-some-hydrate-grains-caused-by-the-fresh-water,-the-gas-amounts-contained-in-hy-drate-will-be-significantly-enhanced.