Constant tension steel catenary riser system
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United States of America Patent
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-
Nov 30, 2004
Grant Date -
Mar 25, 2004
app pub date -
Sep 19, 2002
filing date -
Sep 19, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A steel catenary riser (SCR) system includes a tensioning mechanism on a floating facility that controllably applies a substantially constant tension to an SCR that is fluidly coupled to the facility by a flexible jumper conduit. More specifically, the system includes a tensioning device located on the floating facility; and an SCR having an upper portion, which, in the preferred embodiment, extends above the surface of the body of water. The upper portion of the SCR is connected to the tensioning device by a connection element, such as a cable, chain, rope, or wire, whereby tension is controllably applied from the tensioning device to the SCR. A flexible jumper conduit is fluidly connected between the upper portion of the SCR and the floating facility for conducting fluid from the SCR to the floating facility. In a preferred embodiment, the connection element is attached to the upper portion of the SCR at an attachment point, and the flexible jumper conduit is fluidly coupled to the SCR near the attachment point.
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