This set of Petroleum Production Operations online test focuses on “Completion Equipment – Production Tubing”.
1. What is Production Tubing?
a) Drill pipe that takes the production
b) Surface Casing
c) Intermediate Casing
d) Conduit for hydrocarbon transportation
View Answer
Explanation: Production Tubing is the main Conduit for hydrocarbon transportation from the reservoir to the surface facilities. We can inject any other fluids too through the production tubing from the surface to the subsurface. It runs from the tubing hanger to just above the production zone. Drill pipes are the pipes used in drilling operations. Surface casings are used to isolate the system from groundwater and Intermediate casings are used to abnormally pressured or weak formations.
2. What does the number after the letter grading signify in the nomenclature of tubing?
a) The maximum yield stress in units of a 1000 psi
b) The minimum yield stress in units of a 1000 psi
c) The maximum yield stress in units of a 100 psi
d) The maximum yield stress in units of a 10000 psi
View Answer
Explanation: The number after the letter grading signifies the minimum yield stress in units of a 1000 psi in the nomenclature of tubing. The letter grade signifies the manufacturing process and the subsequent operations done to the tubing to modify its properties.
3. What is a sliding sleeve?
a) A circulating device that communicates the tubing and annulus
b) Perforation gun
c) Logging tool
d) Sonde
View Answer
Explanation: A sliding sleeve is a circulating device that communicates the tubing and annulus. The main uses of a sliding sleeve are to shut off flow from one or more different reservoir zones. They are mechanically or hydraulically actuated. It is used to regulate pressure between different zones. Perforating guns are used to perforate the formation. A group of several logging tools is known as Sonde.
4. Landing nipples are heavy wall tubular that provide a seal or a locking system.
a) True
b) False
View Answer
Explanation: Landing nipples are heavy wall tubular that provide a seal or a locking system. They are included in most of the completions in a predetermined interval to install the flow control devices later on.
5. Why do the 13% Cr alloy casings and tubings are used in some of the completions?
a) They are Corrosion Resistant
b) They are water resistant
c) Because of their strength
d) High yield stress
View Answer
Explanation: In some of the completions % Cr alloy casings and tubings are used because they are corrosion resistant. If the formation fluid contains H2S then they are called corrosive fluids. They can significantly corrode the casings and tubings so to prevent them from corrosion 13% Cr alloy casings and tubings are used.
Sanfoundry Global Education & Learning Series – Petroleum Production Operations.
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