Subsea deployable drum for laying lines
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United States of America Patent
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Sep 28, 2004
Grant Date -
Sep 11, 2003
app pub date -
Feb 28, 2003
filing date -
Feb 28, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
A method of deploying a subsea line utilizes a subsea deployment unit. A drum wrapped with the line is mounted to the unit. The unit is lowered on a cable into the sea from a surface vessel. An ROV is lowered on an umbilical into the sea and brought into engagement with the unit. The ROV provides thrust and guidance to move the unit along a desired path above the sea floor. The ROV also supplies power to the motor of the unit to cause the drum to rotate and deploy the line from the drum. The ROV disengages from the unit and connects the ends of the line to subsea components.
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