System for preventing hydrate formation in chemical injection piping for subsea hydrocarbon production
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United States of America Patent
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Mar 2, 2010
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N/A
app pub date -
Jan 29, 2008
filing date -
Jan 29, 2008
priority date (Note) -
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Abstract
A system for prevention of hydrate formation has a manifold, a production piping communicating with the manifold, a chemical injection line positioned in heat exchange relationship along the production piping, and a fluid delivery system connected to the chemical injection line for passing a heated fluid through at least a portion of the chemical injection line. The chemical injection line has a first portion affixed to a surface of the production piping and a second portion extending outwardly therefrom. The fluid delivery system is in communication with the second portion of the chemical injection line. The chemical injection line extends in a U-shaped pattern or in a spiral pattern around an outer surface of the production piping.
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