# Well Control: Activity 8

1) If, while waiting for kill mud to be mixed, both drill pipe and annulus pressures started to raise, what type of influx does this indicate?

a. Fresh water
b. Salt water
c. Oil
d. Gas

2) Company policy states, "... when killing a well you will always attempt to kill the well using a method that minimizes the pressure on the stack and upper casing". Which method would you choose?

a. Wait and Weight
b. Drillers
c. Lubricate and bleed
d. Volumetric

3) At what point while correctly circulating out a gas kick is it possible for the pressure at the casing shoe to be at its maximum? (Select three answers)

a. At initial shut-in.
b. When kill mud reaches the bit.
c. When kill mud reaches the casing shoe.
d. When top of gas reaches the shoe.

4) We are planning to circulate a kick with the wait & weight method. The volume of the surface lines on this rig is 20 bbls. Identify the best procedure for dealing with the volume of the surface lines?

a. Re-zero the stroke counter once kill mud reaches the bit.
b. Subtract 20 bbls (adjusted for pump strokes) from '' the strokes to bit ''  on the kill sheet.
c. Ignore to 20 bbls and use it as a safety factor.
d. Re-zero the stroke counter when kill mud starts down the drill pipe.

5) Why do we need to take into account a large surface line volume (from the mud pumps to the drill floor) when preparing a kill sheet for killing the well with the Wait & Weight Method? (Choose two answers)

a. If we don’t, following the drill pipe pressure graph will result in a BHP too low.
b. If we don’t, there will be no effect on the bottom hole pressure.
c. If we don’t, following the drill pipe pressure graph will result in a BHP too high.
d. If we don’t, the total time for killing the well will be shorter than calculated.
e. If we don’t, the total time for killing the well will be longer than calculated.

6) You are circulating out a gas kick using the wait and weight method. What will happen to bottom hole pressure in each of the following situations?

A. If drill pipe is held constant while kill mud is being pumped to the bit.
a. Increase                b. Decrease             c. Stay the same

B. If drill pipe pressure is held constant while kill weight mud is being pumped up the annulus.
a. Increase                b. Decrease             c. Stay the same

C. If SPM is increased and Drill pipe pressure is held constant.
a. Increase                b. Decrease             c. Stay the same

D. If the gas bubble is not allowed to expand.
a. Increase                b. Decrease             c. Stay the same

7) While killing a well, as pump speed is increased, what should happen to casing pressure in order to keep bottom hole pressure steady?

a. Casing pressure should be held steady during SPM change.
b. Casing pressure should be allowed to rise during SPM change.
c. Casing pressure should be allowed to fall during SPM change.

8) A gas kick is being circulated up the hole. What is surface pit volume most likely to do?

a. Increase.
b. Stay the same.
c. Decrease.

9) Why must the pit volume be monitored during a kick killing operation?

a. To determine kill weight mud.
b. To determine influx volume.
c. To determine if lost returns occurs.
d. To determine the gain due to barite additions.

10) When starting the kill operation with a surface BOP, the choke pressure is kept constant while bringing the pump up to speed. The drill pipe gauge now reads 250 psi higher than the pre-calculated initial circulating pressure (ICP). To maintain constant BHP, what is the best action to take?

a. Open the choke and let the standpipe pressure drop to the pre-calculated value (ICP).
b. Continue to circulate with the new ICP and adjust the drill pipe pressure graph accordingly.
c. There will now be 250 psi overbalance on the bottom which is acceptable. Nothing needs to be done.

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