Abstract: A riser connector assembly includes a first connector assembly portion with first locking members, a second connector assembly portion with second locking members, and a locking device with third and fourth locking members. The locking device is rotatably connected to the first connector assembly portion. The locking device rotates between a first position where each of the locking members are interlocked, a second position where the first and third locking members are interlocked, and the second and fourth locking members are not interlocked, and a third position where none of the locking members are interlocked, so that the locking device is removable. The first and third locking members selectively/releasably interlock via a relative rotation between the first connector assembly portion and the locking device. The second and fourth locking members selectively/releasably interlock via a relative rotation between the second connector assembly portion and the locking device.

Abstract: A marine riser includes at least two riser sections which are connected in an end-to-end relationship. The at least two riser sections extend between a subsea installation and a suspension device arranged above the subsea installation. At least one of the at least two riser sections includes at least one pipe having a heat exchanger.

Abstract: A marine riser includes at least two riser sections which are connected in an end-to-end relationship. The at least two riser sections extend between a subsea installation and a suspension device arranged above the subsea installation. At least one of the at least two riser sections includes at least one pipe having a heat exchanger.

Abstract: A riser connector assembly includes a first connector assembly portion comprising first locking members, a second connector assembly portion comprising second locking members, and a locking device comprising third and fourth locking members. The locking device is rotatably connected to the first connector assembly portion. The locking device is configured to rotate between a first position where each of the locking members are interlocked, a second position where the first and third locking members are interlocked, and the second and fourth locking members are not interlocked, and a third position where none of the locking members are interlocked, so that the locking device is removable. The first and third locking members selectively/releasably interlock via a relative rotation between the first connector assembly portion and the locking device. The second and fourth locking members selectively/releasably interlock via a relative rotation between the second connector assembly portion and the locking device.