In anticipation of heavy weather, it is...

In anticipation of heavy weather, it is...

Question 1 of 2707066636ee728f7522a1c5174f6

In anticipation of heavy weather, it is decided to deballast the DEEP DRILLER to survival draft. The marine riser should be disconnected, pulled, and laid down. After doing so, the riser tension will be __________.

Question 1 of 27070

Q

In anticipation of heavy weather, it is decided to deballast the DEEP DRILLER to survival draft. The marine riser should be disconnected, pulled, and laid down. After doing so, the riser tension will be __________.

🔍 Key Concepts

• Marine riser tension systems on drilling units • Effect of disconnecting and laying down the riser on tension • Difference between tension in the system and weight of the riser

💭 Think About

• After the riser is disconnected, what physical connection remains between the riser and the tensioning system? • If the riser has been pulled and laid down on deck or in a rack, where is its weight being carried? • Would the tensioner still need to support the riser when it is no longer hanging vertically in the water column?

✅ Before You Answer

• Identify whether the riser is still suspended in the water or stowed/laid down and how that affects tension. • Confirm where the riser tensioner applies force when the riser is in normal drilling mode versus when it is laid down. • Determine if any active tension is required from the tensioning system once the riser is no longer supported by it.