Nice heave compensation! The lower rusty part is connected to the ball joint on top of the BOP sitting on the wellhead while the shiny part is connected to the ball joint below the drill deck. The attached wires carry the riser weight and also give an added bottom tension of around 50 tonnes since the lower joint must pop up and away in case of an emergency disconnect. Inside there is probably a rotating drill string, or a completion/ workover riser that is fixed inside the wellhead and suspended from the drill tower with tension from the top drive, giving a lower overpull of 10 tonnes.
Jimmy Willhem was main man on that design. Used to say "looks good if you can't see it from my house". He told me that it all went down hill when Huberton/Rand took over day to day operations.
how can riser system heave by such significant amount? there should be heave compensation & heave motion of vessel shall not be transferred to riser system? in this video, whether riser system is disconnected at bottom & riser system is free hanging from top drive? what kind of operation is being performed on well in this video? i am trying to understand this video as I am new to subsea oil & gas industry and now trying to execute global riser analysis. if any one can answer my questions, it would be of great help to me.
Me and Frode both worked together this time. Technical team. Me Rig electricican and him Rig Mechanic... Those were the days....
Nice heave compensation! The lower rusty part is connected to the ball joint on top of the BOP sitting on the wellhead while the shiny part is connected to the ball joint below the drill deck. The attached wires carry the riser weight and also give an added bottom tension of around 50 tonnes since the lower joint must pop up and away in case of an emergency disconnect.
Inside there is probably a rotating drill string, or a completion/ workover riser that is fixed inside the wellhead and suspended from the drill tower with tension from the top drive, giving a lower overpull of 10 tonnes.
Laguna
Jimmy Willhem was main man on that design. Used to say "looks good if you can't see it from my house". He told me that it all went down hill when Huberton/Rand took over day to day operations.
I've been down; the Moonpool Rabbit Hole, of late. Thanks! To Reddit. Lol. Just added another "Phobia" to my already, long list.
same 😦
Very goo video , like it.
mind blowing
how can riser system heave by such significant amount? there should be heave compensation & heave motion of vessel shall not be transferred to riser system? in this video, whether riser system is disconnected at bottom & riser system is free hanging from top drive? what kind of operation is being performed on well in this video? i am trying to understand this video as I am new to subsea oil & gas industry and now trying to execute global riser analysis. if any one can answer my questions, it would be of great help to me.