System and Method for Inhibiting Hydrate Film Growth On Tubular Walls
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United States of America Patent
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Issued Date -
Sep 17, 2015
app pub date -
Jan 22, 2015
filing date -
Mar 12, 2014
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Abstract
Methods and systems are provided for inhibiting the formation and/or growth of clathrate hydrates in a mixed phase fluid at or near the walls of a tubular through use of a chemical or physical coating on the tubular wall. An exemplary embodiment provides a method for producing a flowable mixed phase fluid having the potential to create clathrate hydrates. The method includes inhibiting hydrate formation in a tubular by injecting an additive into a fluid stream in the tubular, and the additive adheres, at least in part, to the walls of the tubular and inhibits hydrate growth proximate to the wall. When sufficient additive is injected into the tubular system, the hydrate film growth on the tubular walls is inhibited, at least to some extent, and a continuous flow rate is maintained.
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