| 摘要 |
2094699 9307048 PCTABS00021 Device associated with a flexible riser for floating structures such as drilling or production vessels for recovery of oil and gas. The flexible riser (4) extends from a wellhead on the sea-bed to a pipe system on a turret (2) on the floating structure through a guide pipe in the turret. The riser (4) is connected with a rigid pipe (5) which extends from the lower edge of the turret (2) through the guide pipe in the turret and to the pipe system on the deck. The rigid pipe (5) is fitted at an angle (.alpha.) to the vertical, which essentially corresponds to the natural angle of the riser.
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