| 摘要 |
A top connecting device connecting two terminal endpieces of two submarine fluid transporting pipelines used in offshore hydrocarbon exploitation. The pipelines comprise a riser supported by at least one buoyant element and a jumper pipe connecting the riser to a production and/or storage installation located at the surface. An intermediate linking pipe mounted movable relative to the terminal endpieces of the riser and the jumper is movable between an operational position, wherein the linking pipe is connected at its two ends to the endpieces of the riser and the second pipe, and an intervening position, wherein the ends of the pipe are disconnected from the endpieces.
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