DRILLING EQUIPMENT COMBINED SURFACE/SUBSEA LEVEL 2 EXAM

Enter your ACCESS PASSWORD

Fill in your information

NameEmailPhone Number

1 / 26

Which BOP stack function is supplied from the annular pressure regulator?

The ram preventer, annular preventer, and hydraulically operated choke and kill line valves.

The annular preventer, and hydraulically operated choke and kill line valves.

Rams and hydraulically operated choke and kill line valves.

The annular preventer only.

2 / 26

Why would you carry out an inflow test?

To pressure test the well without displacing to a heavy drilling fluid.

To ensure the well can contain fluid with a higher hydrostatic pressure than the formation pressure.

To pressure test a critical wellbore element in the direction of flow.

To ensure that the BOPs can handle a kick from the well.

3 / 26

What is the main purpose of blind/shear rams?

To seal around leaking production tubing.

To create a seal with drill collars in the hole.

To shear tubulars like drillpipe without sealing the hole.

To first shear tubulars and then seal the hole.

4 / 26

Which piece of equipment is normally used to treat gas cut mud while drilling?

The desander.

The mud cleaner.

The vacuum degasser.

Mud gas separator (MGS).

5 / 26

What is the purpose of the by-pass valve on a surface stack hydraulic BOP control unit?

To enable full accumulator pressure to be placed on the manifold.

To bleed the accumulator fluid back to the reservoir.

To by-pass the 3-position/4-way valves.

To enable full accumulator pressure to be placed on the annular BOP.

6 / 26

There is only one inside BOP (IBOP) with an NC50 (4-1/2 in IF) pin/box connection on the rig.

The drill string consists of:-

5 in drillpipe (NC50)
5 in heavy weight drillpipe (NC50)
8 in drill collars (6-5/8 Reg.)
9-1/2 in drill collars (7-5/8 Reg.)

Which crossovers must be on the rig floor while tripping? Choose two answers.

NC50 (4-1/2 in IF) box x 6-5/8 in Reg. pin.

NC50 (4-1/2 in IF) pin x 7-5/8 in Reg. box.

6-5/8 in Reg. Pin x 7-5/8 in Reg. Pin.

NC50 (4-1/2 in IF) box x 7-5/8 in Reg. pin.

NC50 (4-1/2 in IF) pin x 6-5/8 in Reg. box.

7 / 26

On a surface BOP stack, in which position must the valves on the kill line and choke line be during drilling?

Hydraulic valves closed and manual valves open.

All valves must be closed.

Manual valves closed and hydraulic valves open.

Both types of valves closed on the kill line and open on the choke line.

8 / 26

3-position/4-way valves are used on the hydraulic BOP control unit to control surface stack functions. Which statements about their operation are correct? Choose two answers.

They cannot be operated from the remote BOP control panel.

They have three hydraulic connections (inlets/outlets).

They have four hydraulic connections (inlets/outlets).

They can be placed in four positions.

They can be manually operated.

9 / 26

Which statement correctly describes commonly used BOP stacks?

The annular BOP may have a lower pressure rating than the ram BOPs, but will allow sealing on a wider size range of pipe or tubulars.

The annular BOP may have a lower pressure rating than the ram BOPs and can only be closed on casing strings.

The annular BOP may have a higher pressure rating than the ram BOPs, but will allow sealing on a wider size range of pipe or tubulars.

The annular BOP may have a higher pressure rating than the ram BOPs, and can only be closed on drillpipe.

10 / 26

Which statements about annular BOPs are correct? Choose two answers.

They can provide primary well control.They can provide primary well control.

They will allow pipe movement while maintaining a seal against well bore pressure.

They will not allow tool joints to pass through.

Hydraulic closing pressure may vary according to the operation.

They will seal reliably around any object in the well bore.

11 / 26

In a mud gas separator (MGS), what is the purpose of the mud seal?

It prevents gas from entering the shaker house.

It allows gas to enter the shaker house and the vacuum degasser.

It acts as a backup for the vacuum degasser.

It prevents gas from venting to the atmosphere.

12 / 26

What is an inside blowout preventer (IBOP)?

A flapper type non-return valve.

A ball valve installed immediately above the bit.

A device that can be installed in the drillstring to act as a non-return valve.

An element inserted into the annular preventer to reduce the inside diameter.

13 / 26

What is the main function of the choke in the overall BOP system?

To control back-pressure while circulating out a kick.

To shut in the well softly.

To direct well bore fluids to the mud gas separator (MGS).

To direct hydrocarbons to the flare.

14 / 26

While out of the hole and the top drive disassembled for repairs, an increase in the trip tank indicates that the well is flowing rapidly. What is the most appropriate BOP to close?

Blind/shear rams.

5 in Pipe rams.

Annular BOP.

Variable bore rams.

15 / 26

Why is a mud gas separator (MGS) fitted with a pressure gauge?

To monitor the liquid seal, ensuring that gas does not enter the shakers.

To know when the MGS vent line is becoming plugged.

To monitor the liquid seal, ensuring that crude oil does not enter the shakers.

To determine the volume of gas influx being vented.

16 / 26

What is used to operate the side-outlet valves at the BOP stack?

Hydraulic fluid.

Air.

Electricity.

Nitrogen.

17 / 26

What is the function of the master control valve on an air operated remote BOP control panel?

It activates the air supply to the panel.

It activates the electric circuit for the open/close lights.

It supplies hydraulic fluid to the panel.

It adjusts pipe ram closing pressure.

18 / 26

What are ram type preventers designed to do?

Hold pressure from both above and below.

Hold pressure only from above.

Hold pressure only from below.

19 / 26

Which valve when operated, will increase the manifold pressure to maximum accumulator pressure for shearing pipe?

The high/low by-pass valve.

The annular regulating valve.

The kill line valve.

The accumulator shut-off valve.

20 / 26

Which gas is used to pre-charge the accumulator bottles on a hydraulic BOP control unit?

Oxygen.

Nitrogen.

Carbon dioxide (C02).

Air.

21 / 26

Why is fluid stored under pressure in the accumulator bottles on the BOP control unit?

To replace the drilling fluid during the weekly BOP test.

To operate the remote choke.

To enable the BOP to be closed if there is a power failure.

To operate the kill line valve.

22 / 26

What does '13-5/8 in' mean when the BOP stack is described as '15K, 13-5/8 in'?

The external diameter of the BOPs.

The external diameter of the flange or hub.

The cylinder diameter of the hydraulic actuator for the ram BOPs.

The through-bore (inside diameter) of the BOP.

23 / 26

What is a diverter designed to do?

To direct fluids to a safe distance from the rig floor.

To act as a back-up system if the pipe rams fail.

To create sufficient back-pressure to prevent formation fluids entering the well bore.

To shut the well in.

24 / 26

Which three system functions can be operated from a subsea BOP control panel?

Hydraulic power unit (HPU) system, diverter system and the rig hydraulic system.

Subsea BOP system, diverter system, hydraulic power unit (HPU) system.

Heave compensation system, choke control panel system, and the diverter system.

Subsea BOP system, pit-volume totaliser system, and high pressure air system.

25 / 26

Which statement about the shuttle valves on a subsea BOP stack is correct?

The shuttle valves are directly controlled by pilot fluid.

The shuttle valves isolate the control fluid system between the active and the redundant odds.

The shuttle valves require 3000 psi to operate.

The shuttle valves isolate the hydraulic pilot system from the hydraulic control system.

26 / 26

Subsea accumulator bottles are attached to the lower marine riser package (LMRP). What are these bottles used for?

To provide a rapid supply of hydraulic power for BOP system functions:

To provide all of the power to disconnect the riser in an emergency.

To apply extra closing pressure to the BOP rams.

To provide the power for shearing the pipe.

Your score is

0%