CPA Petroleum Industry Fundamentals 3

Question 1

What does API gravity measure in crude oil?

Accepted Answer

The density of oil relative to water

Answer

The amount of natural gas dissolved in the oil

Answer

The viscosity of the oil at standard temperature

Answer

The sulfur content of the crude

Question 2

In offshore drilling, what is the purpose of a 'blowout preventer' (BOP)?

Accepted Answer

To control unexpected pressure surges and prevent well blowouts

Answer

To prevent the drill bit from overheating

Answer

To stop wind from affecting the drilling platform

Answer

To regulate mud flow into the formation

Question 3

What is 'natural gas liquids' (NGL)?

Accepted Answer

Hydrocarbon components heavier than methane extracted from natural gas

Answer

Liquefied natural gas stored at cryogenic temperatures

Answer

Condensate water produced with natural gas

Answer

A byproduct of crude oil refining

Question 4

Which drilling fluid property describes its resistance to flow?

Accepted Answer

Viscosity

Answer

Density

Answer

pH

Answer

Filtration rate

Question 5

What is the main purpose of casing in a wellbore?

Accepted Answer

To stabilize the wellbore and isolate geological formations

Answer

To reduce drilling costs

Answer

To increase the rate of penetration

Answer

To guide the drill string direction

Question 6

What does the term 'upstream' refer to in the petroleum industry?

Accepted Answer

Exploration and production of oil and gas

Answer

Pipeline transport from refineries to consumers

Answer

Refining and processing of crude oil

Answer

Marketing and retail distribution

Question 7

What is 'reservoir pressure' in the context of oil production?

Accepted Answer

The natural pressure within a hydrocarbon-bearing formation

Answer

The weight of the drilling mud column

Answer

The pressure applied by surface pumps

Answer

The pressure in the pipeline network