CPA Petroleum Industry Fundamentals 2

Question 1

Which type of hydrocarbon trap is formed when impermeable rock layers bend upward to create a dome-shaped structure?

Accepted Answer

Anticline trap

Answer

Fault trap

Answer

Stratigraphic trap

Answer

Salt dome trap

Question 2

What is the primary purpose of a Christmas tree on an oil well?

Accepted Answer

To control and regulate flow from the well

Answer

To decorate the wellsite during holidays

Answer

To support the drilling derrick

Answer

To separate oil from water

Question 3

In petroleum geology, what does the term 'source rock' refer to?

Accepted Answer

Organic-rich rock where hydrocarbons are generated

Answer

Hard rock used to anchor drilling equipment

Answer

Rock from which drilling cuttings originate

Answer

The bedrock beneath a reservoir

Question 4

What is 'secondary recovery' in oil production?

Accepted Answer

Injecting water or gas to maintain reservoir pressure

Answer

Drilling a second well on the same lease

Answer

Recovering oil from a second reservoir

Answer

Processing crude oil a second time at the refinery

Question 5

Which unit is most commonly used to measure crude oil volume in international trade?

Accepted Answer

Barrel

Answer

Cubic meter

Answer

Gallon

Answer

Metric ton

Question 6

What is the function of a 'packer' in a wellbore?

Accepted Answer

To seal the annular space between tubing and casing

Answer

To pack drilling mud into the formation

Answer

To compress gas for pipeline transport

Answer

To pack cuttings out of the well

Question 7

What distinguishes 'tight oil' from conventional crude oil?

Accepted Answer

Tight oil is trapped in low-permeability formations requiring hydraulic fracturing

Answer

Tight oil has a higher API gravity

Answer

Tight oil is found at shallower depths

Answer

Tight oil contains more sulfur compounds