This set of Petroleum Production Operations Multiple Choice Questions & Answers (MCQs) focuses on “Scale Removal”.
1. Which of the following is correct regarding Potassium Carbonate?
a) Adjusts the pH of the fluid
b) Prevent a build-up of minerals in the inner wall
c) Used to lower the surface tension
d) Used to limit the growth of microbes
View Answer
Explanation: The correct statement regarding Potassium Carbonate is that it adjusts the pH of the fluid for improving the effectiveness of other components, such as crosslinkers. A crosslinker is a chemical molecule and it has at least two reactive ends that are used to connect to the polymer chains.
2. The uppermost valve on the Christmas tree installed above the flowline outlet is called ____
a) Tree cap
b) Pressure gauge
c) Swab valve
d) Upper master valve
View Answer
Explanation: The uppermost valve on the Christmas tree installed above the flowline outlet is called the Swab valve. A swab valve is a topmost valve on a Christmas tree and it provides vertical access to the well for any type of well intervention operations.
3. What are the name of the tool that is set in the Christmas tree or wellhead and it suspends the production tubing and casing?
a) Tree nightcap
b) Flowline
c) Tubing hanger
d) Swab valve
View Answer
Explanation: The name of the tool that is set in the Christmas tree or wellhead and it suspends the production tubing in use and the casing is known as tubing hanger. The tubing hanger is mechanical part used in oil and gas wells which are in production.
4. Which of the following is correct regarding Sodium Erythorbate in hydraulic fracturing?
a) Prevents precipitation of metal oxides
b) Adjusts the pH of the fluid
c) Carrier fluid for guar gum in liquid gels
d) Product Stabilizer
View Answer
Explanation: Sodium Erythorbate is a type of additives used at the time of hydraulic fracturing job which generates white crystals. The main purpose of using this additive is to control the iron or any type of metals that are in use.
5. Gas will migrate faster in drilling mud compared to completion brine.
a) True
b) False
View Answer
Explanation: The statement is false. Gas will not migrate faster in drilling mud compared to completion brine. Drilling mud will force on the walls of the formation. It will act downward so gas will not able to move faster as compared to the drilling fluid.
Sanfoundry Global Education & Learning Series – Petroleum Production Operations.
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