Well Control Quiz : Kick Warning Signs - Part 1 -

1. While drilling a head through a faulted formation, the flow meter drops from 50% to 42% What is the most likely cause of this? 

a- A swabbed kick on last connection.
b- A washout in the drill string.
c- Partial lost circulation
d- Total lost circulation.

2. Which are warning signs of abnormal pressure at when there is constant rotary RPM, constant weight on bit (WOB) and constant pump rate? Choose three answers

a- A change in the shape of the cuttings at the shakers
b- A decrease in flow line temperatures
c- A drop in active tank level
d- An increase in pump pressure
e- An increase in trip tank level
f- Increased connection gas in returns
g- Varying penetration rate

3. What should the driller do when connection gas is detected? Choose two answers

a- Control the drilling rate so that only one slug of connection gas is in the hole at any time
b- Increase the yield point in the active system
c- Minimize the time during a connection when the pumps are switched off
d- Pull out the hole to change the drilling bit
e- Pump a low viscosity pill to reduce balling of bit and stabilizers

4. After a connection, the gas alarm sounds after bottoms-up strokes. Which type of gas is this?

a- Background gas
b- Connection gas
c- Drilled gas
d- Recirculated gas

5.During the trip out of the well, and with the drilling bit 1200 ft from bottom, the hole failed to take the calculated volume of drilling fluid from the trip tank, there is no flow from the well What is the next step that should be taken?

a- Pump remaining stands out of the hole.
b- Flow check, if negative continue to pull out of the hole.
c- Shut the well in and circulate hole clean.
d- Flow check, if negative run back to bottom and monitor returns.

6. After pulling ten stands out of the hole, the fluid it takes to fill the hole from the tank is less than calculated on the trip sheet. What action is required?

a- Flow check. If there is no flow, continue to pull out of the hole to surface
b- Flow check. If there is no flow, displace a heavy slug into the annulus and continue to pull out of hole
c- Flow check. If there is no flow, run back to bottom while monitoring returns
d- Pump the remaining stands out of the hole

7. When tripping out of the hole using a trip tank, which factors could indicate a possible influx to the Driller? Choose two answers

a- The hook load decreases as each stand is pulled
b- The trip tank level falls less than expected for each pulled stand
c- The trip tank level falls more than expected for each pulled stand
d- When pulling pipe, the flow meter in the flowline shows an increase flow
e- With no pipe movement, the trip tank level increases

8. During a trip 15 stand of dry pipe have been pulled out, the volume of drilling fluid use to fill the hole was 8.2 bbl.

Well data:

Well depth: 5800 ft
Stand Length: 90 ft
Drill pipe Capacity: 0.01782 bbl/ft
Drill pipe metal displacement: 0.0082 bbl/ft
Drilling mud density: 11.2 ppg

Select the correct action from the following list.

a- The volume is not corrected due to swabbing but as long as the well is stable continue to pull out.
b- Continue to pull out since the situation seems to be under control.
c- Start pumping high density drilling mud in to the annulus.
d- An influx has been swabbed in, check for flow, if no flow, trip back to bottom while monitoring displaced volume and carefully then circulate bottom up.

9. After pulling 10 stands of pipe, a well takes less fluid than expected. The driller completes a flow check and confirms the well is not flowing. What should the driller do next?

a- Because the well is not flowing, continue pulling pipe from the hole.
b- Establish if there has been an influx by running back to bottom and circulate bottom up
c- Pull another 10 stands and flow check.
d- Shut-in the well immediately and check for pressures.

10. While tripping out of the hole, the well starts flowing. What is the first action to take?

a- Close the annulus and then make up the top drive
b- Pull back to shoe
c- Run back to bottom as quickly as possible
d- Stab in a Drill Pipe Safety Valve (DPSV) in the drill string and shut the well in.

1. C                                 4. B                          7. B-E                    10. D
2. A.F.G                          5. D                          8. D
3. C                                 6.                          9. B

NB: We are very thankful to the well control community. We will be very happy to receive your comments or objections for sharing this content. Facebook page Drilling Course , E-mail: drilling.course@gmail.com

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