Connections for subsea pipe-in-pipe structures
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United States of America Patent
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Jan 2, 2018
Issued Date -
N/A
app pub date -
Jan 25, 2013
filing date -
Jan 25, 2012
priority date (Note) -
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Abstract
A reelable connection between facing ends of opposed pipe-in-pipe sections in which an end wall connects inner and outer pipes of each section to seal an end of an annular space defined between those pipes is disclosed. In each section, the inner pipe protrudes beyond the end wall and the outer pipe and is joined to an inner pipe of the opposed section, leaving opposed ends of the outer pipes of those sections spaced from each other. An insert positioned between the opposed ends of the outer pipes maintains the outer pipe diameter from one section to the other section across the connection.
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