Method for laying underwater pipelines in deep water
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United States of America Patent
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Sep 26, 1995
Grant Date -
N/A
app pub date -
Aug 16, 1993
filing date -
Jul 9, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for laying underwater pipelines in deep water, using the J launching technique, comprising joining together mixed-structure pipes consisting of a steel core reinforced with a composite material consisting of a hardenable material containing continuous fibers and in which: the continuous fiber is wound about the steel core as a helical winding which forms an angle of between 65.degree. and 87.degree. with the pipe axis; the ratio of the thickness of the composite layer to the thickness of the steel core is between 2 and 8; the weight of the mixed-structure pipe in water is between about 40 and 100 kg/m.
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