Wireline Exam - Rikline International Limited

Wireline Exam

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1 / 30

The BOPs are closed with wireline in the well to allow the repair of leaking PCE above.
The repairs are successful, and the wireline has been pulled back to surface. The well has been shut in and the PCE is depressurised.
What action is required before continuing?

Pull wireline from the drum to move any damaged wire away from stuffing box

Check the BOP ram seal and guide plates for damage before doing a full pressure and function test of the PCE.

Check the wireline tool string for damage

Complete a full pressure and function test of the BOP

2 / 30

During a slickline operation in a gas production well, the toolstring has become stuck and a cutter bar is dropped.
After dropping the cutter bar, the wireline is free but there is an unexpected increase in 'A' annulus pressure.

What could be the reason?

The cutter bar has punched a hole in the completion tubing

The well pressure is increasing in the completion string becausethe well is shut in

The gas lift pressure in the 'A' annulus is building up while the well is not flowing

The 'A' annulus is warming up and thermal expansion is causing pressure to increase because the well is shut in.

3 / 30

An operator is unable to achieve a successful low-pressure test on a wireline PCE rig up. What is the correct action to take?

Bleed down the pressure to zero and repair the leaking seal

Increase the pressure to energise the seals

Bleed down the pressure to zero and apply grease to the leaking seal.

Open the PCE to well fluids and monitor for leaks

4 / 30

When running slickline into a dry gas well, what should you do to reduce the wear of the stuffing box packings?

Drill out the stuffing box packings so the wire can move freely.

Keep the wire oiled.

Run the wire into the well very slowly.

Install additional stuffing box packings.

5 / 30

The tools are deep in the well during a wireline operation.
You identify a slow leak in the tubing retrievable surface controlled subsurface safety valve (TRSCSSSV) control line.
It is confirmed that the leak is below the tubing hanger. What action should you take?

Maintain hydraulic pressure to keep the TRSCSSSV open. Pull the tools back to surface while monitoring the weight indicator.

MonitorJhe annulus pressure as well fluids could enter the annulus through the control line.

The TRSCSSSV is fail-safe open, so wireline tools can safely be pulled out of the well before repairing the leak.

Mechanically lock open the hydraulically-operated upper master gate valve and pull the tools back to surface.

6 / 30

During a PCE pressure test, an external leak develops at the wireline BOP stem.
After bleeding off the pressure, what action should you take?

Block the BOP weep hole.

Remove and grease the BOP stem seal face.

Investigate the cause of the BOP stem leak.

Invert the BOP rams and apply the pressure test from above to confirm integrity

7 / 30

The wireline operator has informed you that a slickline BOP has been accidentally closed on the toolstring.
Which action is required?

Visually inspect the BOP rams opening and closing

Ensure the BOP rams can be fully opened again.

Replace the BOP ram guides.

Repair and re-test the BOP

8 / 30

Why would a temporary gate valve be fitted above the Xmas Tree as part of the PCE during a wireline intervention operation?

To place the BOPs at the required working height

To shear the toolstring in an emergency

To accommodate long toolstrings within the PCE

To reduce wear on the Xmas Treevalves.

9 / 30

Figure WL0-0007 shows a wireline PCE rig up.
Figure WL0-0007

With wireline tools in the well, you replace a leaking seal above the BOP. How should the repaired seal be pressure tested?

By testing the lubricator to well head pressure plus a safety factor using test fluid

Bleed the well pressure into the lubricator through the BOP equalisation port

Close the Xmas Tree swab valve and use test fluid to pressure test the PCE

Externally test the seal using hydraulic oil.

10 / 30

During a slickline operation, the toolstring becomes stuck deep in the well. You are unable to move it.
You close the slickline B0Ps. The lower set are leaking but the upper set are holding pressure. What should you do?

Lift the lubricator and prepare to drop the cutter bar.

Close the wirecutting gate valve and prepare a fishing programme

Close the swab valve and prepare a fishing programme

Increase the pressure on the stuffing box and lift the lubricator. Prepare to drop the cutter bar.

11 / 30

Figure WL0-0004 shows wireline PCE rigged up on a Xmas Tree.

Figure WL0-0004

During a wireline operation, the gauge manifold begins to leak at the pressure gauge. The operator stops the operation, closes the BOPs and makes the well safe.

After making repairs, it is not possible to pressurise the PCE above the upper set of BOPs as the equalising valve will not open. What action is required?

Open the BOPs against a differential pressure and pull the wireline out of the well.

Cut the wire and close in the Xmas Tree.

Equalise pressure above the BOPs through the repaired gauge manifold before opening the BOPs.

Remove the equalising valve and make repairs.

12 / 30

With slickline in the well, there is a leak in the PCE above the BOPs.

You close the BOPs but the leak continues.

You close the wire-cutting upper master gate valve and the leak stops.

What should you do next?

Close the surface controlled subsurface safety valve (SCSSSV).

Open and inspect the BOP.

Repair the leak in the PCE.

Close the swab valve.

13 / 30

During a slickline intervention, there is a leak from a lubricator connection above the BOPs. After stopping the winch, what should you do next?

Inject methanol into the lubricator to prevent a hydrate forming.

Close the upper master gate valve.

Pull slickline out of the well and shut in at the Xmas Tree.

Close both sets of BOPs.

14 / 30

While pulling the wireline retrievable surface controlled subsurface safety valve (WRSCSSSV), it becomes stuck across the Xmas Tree.

The wireline BOPs have been fully closed but they are leaking. How can you control the well to allow the SCSSSV to be retrieved?

Close the SCSSSV as it will still work as a barrier.

Kill the well.

Open the production choke to flow the well. This should allow the SCSSSV to be retrieved so a Xmas Tree valve can be closed.

Pump into the well above the SCSSSV to move it below the Xmas Tree. Close the upper master gate valve.

15 / 30

An urgent repair is required on the stuffing box as you are unable to stop a leak.

The tools are deep in the well.

The wireline operator closes the BOPs but they fail to seal. What actions are required to make the well safe?

Close and inflow test the wirecutting upper master gate valve.
Close the swab valve.

Rig up to the kill wing of the Xmas Tree.
Kill the well.

Open the PCE to the vent line.
Close the tool catcher.
Close the swab valve.

Cut the wireline.
Wait for five minutes.
Close the surface controlled subsurface safety valve (SCSSSV).

16 / 30

With tools deep in the well, there is a leak in the slickline PCE above the BOPs. Once the BOPs are closed, both sets fail to seal. The leak is getting worse. What action should you take?

Close the second set of BOPs and pump grease in between to make a seal.

Close the surface controlled subsurface safety valve (SCSSSV) and vent the well pressure before making repairs.

Close the wire-cutting upper master gate valve and monitor the PCE pressure.

Pull the tools back to surface as quickly as possible, close the swab valve and vent the PCE.

17 / 30

A cutter bar has been pulled back into the PCE after successfully cutting slickline above a stuck toolstring.

The well has been shut in at the Xmas Tree and pressure has been bled off from the PCE.

Which of the following must be considered when lifting the lubricator?

The cutter bar could suddenly release from the wire and drop.

The wirecutting upper master gate valve could close.

The hydraulic stuffing box could begin to leak.

The surface controlled subsurface safety valve (SCSSSV) could close on the wire.

18 / 30

During a braided line intervention, two sets of B0Ps will be installed. How should the BOP rams be configured from top to bottom?

Normal
Inverted
Normal
Inverted.

Inverted
Normal
Normal
Inverted

Inverted
Normal
Inverted
Normal.

Normal
Normal
Inverted.

19 / 30

When starting to pull out of the well with a production logging tool (PLT), the weight indicator immediately shows a fluctuating weight increase.

What could be the reason?

The engine_oil filter is blocked.

The toolstring is stuck at the wireline entry guide (WEG).

Hydrates have formed in the completion tailpipe.

A broken strand is creating a 'bird's nest' below the grease injection head.

20 / 30

You prepare to rig up slickline on a live gas well to pull a plug installed in the tubing hanger.

What important factor must you consider when planning the PCE rig up?

If a dual BOP is required as the tools will not pass the tubing hanger.

How you will shut in the well if the toolstring becomes stuck.

How to inflow test the subsurface safety valve (SSSV) before starting the operation.

If a shear seal valve is required immediately on top of the Xmas Tree.

21 / 30

You arrive at the wellsite and the wireline is deep in the well. When inspecting the PCE, you notice that one of the components has a pressure rating that is slightly lower than the shut-in well head pressure. What is the first action to take?

Complete the full operation.
Rig down.
Ensure that the component with the incorrect pressure rating is removed and not used in the next operation.

Continue with the operation as the PCE has passed the integrity test.

Complete the wireline intervention.
Close the Xmas Tree.
Rig down.
Reconfigure the PCE to ensure that all components are compatible with well conditions.

Pull the wireline back to surface.
Close the Xmas Tree.
Rig down.
Reconfigure the PCE to ensure that all components are compatible with well conditions.

22 / 30

A dual BOP is configured with the upper ram in the normal position and the lower ram inverted. The wireline operator closes the BOP on the wireline, injects grease and tests the BOP rams.

What level of barrier protection does this provide?

When combined with a shear/seal device, it provides triple barrier protection.

Double barrier protection.

No barrier protection.

Single barrier protection.

23 / 30

During a slickline operation, a leak develops at the stuffing box. The operation is stopped. The slickline operator tries to stop the leak but the leak is getting worse.

What actions should be taken?

Close and inflow test the BOPs.
When PCE pressure decreases to zero, lift the lubricator.
Clamp and cut the wire.
Repair the stuffing box.
Re-join the wire and rig back up.
Pull out of the well.

Close and inflow test the BOPs.
Build a platform to provide access to the stuffing box.
Make temporary repairs to the stuffing box.
Pull the tools out of the well.

Close the wire-cutting upper master gate valve.
Bleed pressures to zero.
Lift the lubricator.
Repair the stuffing box.
Prepare to fish the wire.

Close the BOPs.
Open the lubricator bleed line.
Re-open the BOPs.
Pull the tools out of the well.
Report the issue on the daily operations report.

24 / 30

Wireline tools are below the surface controlled subsurface safety valve (SCSSSV) when the control line begins to leak at the pump. What might happen?

The upper master gate valve will close and cut the wire.

The control line fluid could become contaminated and damage the SCSSSV.

The SCSSSV will close on the wire.

The SCSSSV will remain open as there will be well pressure

25 / 30

Figure WL0-0005 shows a slickline PCE rig up with details of the B0Ps.

Figure WL0-0005

During a slickline operation, you see hydrocarbons leaking from the upper BOP equalising valve.

What is the first action should you take?

Close in the wirecutting valve of the Xmas Tree and make the well safe.

Close and inflow test the lower set of BOPs.

Close the surface controlled subsurface safety valve (SCSSSV).

Retrieve the wire back to surface before making the repair.

26 / 30

While trying to pull a wireline retrievable surface controlled subsurface safety valve (WRSCSSSV), the slickline breaks at surface. After leaking for a few seconds, the stuffing box has sealed.

What is the first action to take?

Carefully try to close the swab valve to see if the wire is across the Xmas Tree.

Apply pressure to the WRSCSSSV control line and check to see if it can still be operated.

Close the BOPs, lift the lubricator and check for wire.

Close the wirecutting hydraulic master gate valve.

27 / 30

What is the purpose of using a BOP test rod when testing braided line and e-line BOPs?

It provides a spacer between the normal and the inverted BOPs to ensure that they are the correct distance apart.

It holds the BOP check valve off seat allowing equalisation between the normal and inverted BOPs.

It replaces the wire during the PCE integrity test. The space between the normal and inverted BOPs are tested using pressure test fluid.

It will be ejected from the BOPs if too much test pressure is applied during the PCE integrity test.

28 / 30

The slickline operator reports that there is some damage to the BOP blind seals, and there are no spare seals available.

The BOP has passed a pressure test.

What should you do?

Apply a pressure test to the working pressure of the BOP. Continue the operation.

Instruct the wireline operator to do an additional pressure test to the BOP from above.

Suspend the operation until a replacement BOP arrives.

Ensure the pressure test chart has been approved before continuing the operation.

29 / 30

Figure WL0-0012 shows a cutter bar installed onto a slickline and ready to be dropped.

Figure WL0 -0012

During a slickline operation, you have lost jar action and the toolstring is stuck.

You have installed a cutter bar onto the wire and reattached the lubricator.

What sequence would you follow to drop the cutter bar?

Release tension from the slickline.
Equalise the pressure between the lower BOP and the upper BOP.
Open the lower BOP.
Open the upper BOP.

Pull the slickline into tension.
Equalise the pressure across the lower BOP.
Equalise the pressure in the lubricator through the upper BOP.
Open both sets of BOPs at the same time.

Pull the slickline into tension.
Equalise the pressure across the upper BOP.
Open the upper BOP.
Open the lower BOP.

Pull the slickline into tension.
Equalise the pressure across the lower BOP.
Equalise the pressure across the upper BOP.
Open the lower BOP.
Open the upper BOP.

30 / 30

While pulling out of the well, the winch operator notices that a strand is missing from the braided line and sees high weight indicator readings.

The operation is stopped.

What are the correct actions to take?

Continue to pull out of the well at a slower rate.
Decrease the grease injection and reduce the hydraulic pressure to the line wiper.

Run back into the well a short distance.
Close and test the BOPs and then lift the lubricator.
Clamp the braided line above the BOP.
Make repairs.

Run the braided line back into the well to move the 'bird's nest' to below the BOPs.
Close and test the BOPs.
Replace the grease head flow tubes.

Kill the well by bullheading.
Lift the lubricator.
Make repairs.
Continue to pull out of the well.

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