Control Supervisor Practice Exam

IWCF Level 3 – Well Intervention Pressure Control (Supervisor) Practice Exam Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

• What is the primary objective of Well Intervention Pressure Control?

a) To increase production rates

b) To maintain well control during intervention operations

c) To reduce the cost of intervention operations

d) To test the formation pressure

Rationale: The main objective is to ensure safe operations and prevent

uncontrolled flow of formation fluids during well intervention.

• Which of the following operations requires well pressure control

equipment?

a) Acidizing

b) Coiled tubing

c) Wireline 1 / 4

d) All of the above

Rationale: All listed operations can expose the well to pressure,

requiring pressure control to maintain well safety.

• What is the main function of the lubricator in a wireline operation?

a) To support the wireline unit

b) To reduce friction

c) To allow tool string deployment under pressure

d) To store well fluids

Rationale: The lubricator enables tool insertion or retrieval while

maintaining pressure integrity.

• What is the purpose of a stuffing box in slickline operations?

a) To control well pressure

b) To lubricate the line

c) To seal around the slickline during pressure operations

d) To store grease

Rationale: The stuffing box provides a pressure seal around the moving

slickline to prevent leaks.

• Which of the following describes the function of a grease injection

head?

a) To inject corrosion inhibitor

b) To form a dynamic seal around the wireline

c) To lubricate wireline spools

d) To cool the BOP 2 / 4

Rationale: Grease injection heads create a pressure-tight seal around

moving wireline using grease.

• What does BOP stand for in well intervention operations?

a) Blowout Platform

b) Borehole Operational Pressure

c) Blowout Preventer

d) Bottomhole Pressure

Rationale: A Blowout Preventer (BOP) prevents uncontrolled release of

formation fluids.

• What is the primary reason for pressure testing surface equipment?

a) To confirm pressure integrity before operations

b) To measure formation strength

c) To check wireline strength

d) To calibrate gauges

Rationale: Pressure testing ensures equipment integrity and safety

before beginning intervention.

• What is the term used for the maximum allowable surface pressure

that equipment can withstand?

a) Working Pressure

b) Burst Pressure

c) Maximum Working Pressure (MWP)

d) Safety Pressure Limit 3 / 4

Rationale: MWP defines the maximum pressure rating under normal

operating conditions.

• During wireline operations, what does “equalizing pressure” mean?

a) Releasing pressure to atmosphere

b) Balancing well pressure with surface pressure

c) Increasing annulus pressure

d) Bleeding off grease

Rationale: Equalizing pressure ensures no differential before opening

equipment to atmosphere.

• Which valve is commonly used at the top of a lubricator string?

a) Ball valve

b) Check valve

c) Gate valve

d) Flow control valve

Rationale: A check valve allows flow in one direction and prevents

backflow of well fluids.

• What is the correct sequence when rigging up wireline pressure

control equipment?

a) BOP → Lubricator → Tool Catcher → Grease Head

b) Lubricator → Grease Head → Tool Catcher → BOP

c) BOP → Tool Catcher → Lubricator → Grease Head

d) Lubricator → BOP → Tool Catcher → Grease Head

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