Abstract A concrete understanding of hydrate dissociation behavior is crucial for hydrate exploration and oil/gas transportation. A microfluidic chip has been used in this study to visualize cyclopentane (CP) hydrate dissociation. The results showed that during CP-pure water hydrate dissociation, the guest fluid (CP) released from the CP hydrate behaves like small CP microdroplets, forming a stable CP-in-water emulsion. The size and size distribution of the released CP microdroplets are quantified. The mean size of the microdroplets was around 5.3 μm, while the size distribution was within a narrow range of 4 to 9 μm. Fewer and less stable CP microdroplets were released from the CP-brine hydrate dissociation, while more significant coalescences of the CP microdroplets were observed at a higher salt concentration. For the CP-SDS system, a thick and stable emulsion layer was formed by the mass of tiny CP microdroplets released from the CP hydrate during hydrate dissociation.

中文翻译：

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微流控芯片中环戊烷水合物解离行为的实验可视化

摘要 对水合物解离行为的具体理解对于水合物勘探和油气输送至关重要。本研究中使用了微流控芯片来可视化环戊烷 (CP) 水合物的解离。结果表明，在CP-纯水水合物解离过程中，CP水合物释放的客体流体（CP）表现为小CP微滴，形成稳定的CP-水乳液。释放的 CP 微滴的大小和大小分布被量化。微滴的平均尺寸约为 5.3 μm，而尺寸分布在 4 至 9 μm 的狭窄范围内。从 CP-盐水水合物解离中释放出的 CP 微滴越来越少且稳定性较差，而在较高盐浓度下观察到更显着的 CP 微滴聚结。对于 CP-SDS 系统，