Q1. Calculate the fracture strength at casing shoe for the following data:
Shoe TVD: 5500 ft
Test Mud Weight: 12 ppg
The Casing Pressure – Volume Pumped graph deviated after 600 psi
a. 4032 psi
b. 2832 psi
c. 6032 psi
d. 3432 psi
Q2. Calculate maximum allowable mud weight for the following data:
Well Depth: MD 15,050 ft / TVD 13,090 ft
Casing Shoe Depth: MD 11,000 ft / TVD 10,550 ft
Casing Shoe leaked with 11 ppg mud at 1675 psi
a. 13.14 ppg
b. 13.46 ppg
c. 13.93 ppg
d. 14.05 ppg
Q3. when a gas kick. which three conditions in e well are likely to increase the risk of exceeding the MAASP during e well kill operation?
a Small inﬂux
b Large inﬂux
c. Long open hole section.
d Short open hole section.
e. Small difference between the formation strength pressure at the shoe and drilling fluid hydrostatic pressure.
f. Large difference between the formation strength pressure at the shoe and drilling fluid hydrostatic pressure.
Q4. Which of the following possible warning signs indicate that well may go under balance? (Select two answers)
a. Increase in pump pressure.
b. Reduction in rate of penetration.
c. Change in cuttings size & shape.
d. Increase in drilled gas percentage.
Q5. Which of the following equipment may warn of increase in formation pressure while drilling overbalance? (Select three answers)
a. ROP meter
b. Flow line Temperature gauge
c. Gas detector
d. Return flow meter
Q6. After recognizing a drilling break, what is the first action to be taken?
a. Make a flow Check
b. Circulate bottoms up
c. Continue drilling
d. Reduce pump speed
Q7. From all the following indications, which TWO indications would have little room for doubt that the well is kicking?
a. Increased rotary torque.
b. Flow rate increase.
c. Pit volume gain.
d. Increased rate of penetration.
Q8. Will a kick always occur in the event of a loss of return?
a. No. it depends on the mud level in the annulus and the formation pressure.
b. No, it depends on the drill string weight reduction noted on the weight indicator.
c. Yes, losses will always occur above any potential kick zone.
d. Yes, loss of return is always followed by a kick.
Q9. Which one of the following is the first reliable indication that well is ﬂowing?
a. Increase in torque.
b. Gas cut mud.
c. Decrease in pump pressure.
d. Increase in return flow.
Q10. Which one of the following be the first action to be taken, if the mud pump safety valve pops-off or hose going to the drill string is parted while circulating out a kick?
a. Drop the drill string, close blind/shear rams, close the choke.
b. Stop the pump, close the choke.
c. Stop the pump, close Kelly cock, close choke.
d. Repair pump or hose and resume well killing.