Experiments were conducted to investigate hydrate/ice plugging and deposition mechanisms from water dissolved in a liquid condensate system, using a single‐pass flow loop. Two different hydrate/ice plugging mechanisms were observed. Hydrate/ice deposition from a dissolved‐water phase resulted in a lengthwise uniform/dispersed deposit and a gradual pressure drop increase. The dispersed deposit acted as insulation at the flow loop wall, and the deposit began to propagate downstream. However, cooling below the liquid‐water saturation curve resulted in free water coalescence, and a localized hydrate/ice restriction in the flow loop. This localized restriction resulted in a rapid pressure drop increase.
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Nicholas et al. (2009) studied this question.
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