250+ TOP MCQs on Well Completion Design – Concepts and Answers

Petroleum Production Operations Multiple Choice Questions on “Well Completion Design – Concepts”.

1. Pseudo pressure is a pressure function that considers the variable compressibility and viscosity of gas with respect to temperature.
a) True
b) False
Answer: b
Clarification: The statement is incorrect. The correct statement is Pseudo pressure is a mathematical pressure. Pseudo pressure considers the variable compressibility and viscosity of gas with respect to pressure.

2. What is a dog-leg in oil and gas well drilling?
a) Bore hole
b) Place near the perforation
c) Logging data obtained
d) Changing of well trajectory rapidly
Answer: d
Clarification: A dog-leg in oil and gas well drilling means a crooked place where the wellbore trajectory changes rapidly. Sometimes directional drillers intentionally create the dog leg to reach the desired target.

3. The full form of BOP is _____
a) Bottom hole Pressure
b) Bottom Oil Price
c) Below Optimum Pressure
d) Blow Out Preventer
Answer: d
Clarification: The full form of BOP is Blow Out Preventer. An uncontrolled kick (or influx of formation fluid into the well bore) is called a Blow Out. So, to prevent this BOP or arrangement of several valves are attached above the well to seal, control and monitor the well.

4. Which of the following is a Cased hole completion?
a) Casings are run into the zone of interest
b) Casings aren’t run into the zone of interest
c) Casings are not used inside the well
d) Cementing is not done in the well
Answer: a
Clarification: Cased hole completion is a type of completion in which Casings are run in the zone of interest i.e. the reservoir. To initiate the production of oil or gas perforation is to be done through the casing then to the cement and finally to the formation of interest.

5. In general, when a perforation job is to be done then a Casing-Collar- Locator (CCL log) is also run to ensure the correct depth.
a) True
b) False
View Answer

Answer: a
Clarification: Yes, when a perforation job is to be done then a Casing-Collar- Locator (CCL log) is also run to ensure the correct depth. It identifies both the collar location and the packer location.