Subsea Well Control Practice Quiz

If you are about to start killing a well on an offshore deep water rig and ignore the recorded 245 psi choke line friction and come on choke holding casing pressure constant, bottom hole pressure will

The well has been shut in on a floating rig and the choke line is full of 8.3 ppg fresh water. Calculate the SICP if the choke line was filled with mud instead of water. Distance from BOP to the rig floor is 2000 feet. Density of the mud in the well is 10.2 ppg. SICP is 1050 psi with water in the choke line

In order to take CLFP, the driller circulated down the drill string and up the riser at 40 spm and recorded 800 psi. The Driller then closed the Annular and circulated at 40 spm down the string and up the choke line with the choke wide open and recorded 1050 psi. From the BOP stack to the rig floor is 4000 feet. The choke line friction pressure is:

In deep water wells hydrates can be trouble as they can become a solid frozen

A deep water drill ship is operating in 9000 feet of water. The riser has a 19.875” I.D. and the choke and kill lines are 4.5” I.D. Pump output is .109 bbs/stk. Calculate the strokes to displace the choke line only with lower density fluid after the well has been killed

Accumulator bottles on a subsea stack are not pre-charged to the same pressure as on a surface stack. With a BOP stack in a water depth of 3000 feet, what would the pre-charge pressure be adjusted to? Surface pre-charge pressure = 1000 psi. Sea Water is .445 psi/ft

The choke line friction pressure on an 8500 water depth rig is 300 psi with 11 ppg. If the well was shut in with 400 psi on the SIDPP and 650 psi SICP, what would the casing pressure be by the time you get to the ICP

The mud weight increase to compensate for the loss of the riser is called

Water depth is 2000 feet. Well TVD is 3000 feet. Air gap is 90 feet. Sea Water density is 8.5 ppg. Mud weight is 10 ppg. Calculate the reduction in Bottom Hole Pressure if the riser is disconnected at the well head housing on the seafloor

Water depth is 2000 feet. Well TVD is 3000 feet. Air gap is 90 feet. Sea Water density is 8.5 ppg. Mud weight is 10 ppg, calculate the minimum fluid density that will keep the well balanced with the riser disconnected

If drilling on a floater and a gas kick occurs, you should divert the well

On a subsea well kill, you start to bring the pump up to kill rate and keeping the choke pressure constant at the original SICP minus the calculated CLFP. When the pump is up to kill rate speed, which gauge do you then follow to keep bottom hole pressure just above formation pressure? (1st circulation of Driller's method)

Which of the following operations will create the highest equivalent circulating density?

After successfully closing in a well on a deep water floater, the driller now has the annular and choke closed and the fail safe open. The next step for the driller to do is

After circulating a gas kick on a deep water drill ship in 5000 feet of water, you should not

Fail safe valves on a subsea stack are made so that if it fails, it

Which of the following statements is correct regarding pilot fluid?

On a deep water floater, this automatically activates the shear rams when there is a catastrophic loss of the riser system

When should drillers take CLFP?

The Driller has closed the well in on a deep water floater, but flow continues to come out the riser and down the flow line into the pits. What is the next action the Driller may want to do?

This is a bonus question, What is your name and what company do you work for?