Method for controlling buckling in deepwater pipeline with inclined sleepers
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United States of America Patent
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Oct 4, 2022
Grant Date -
Sep 30, 2021
app pub date -
Mar 23, 2021
filing date -
Mar 25, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
A method for controlling buckling in subsea pipelines involves identifying spaced-apart sections of a subsea pipeline suitable for controlled lateral buckling. Sets of inclined sleepers are installed at each spaced-apart section and are selected to support the spaced-apart sections of the subsea pipeline in an orientation that is perpendicular to the initial as-laid position. Any buckling caused by thermal expansion of the subsea pipeline is distributed to two or more of the spaced-apart sections, causing the two or more spaced-apart sections to deflect laterally along the inclined sleepers outwardly from an initial as-laid position.
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