Quick Revision Quiz

Test out your oil exploration knowledge in this quick quiz:

1. Where does oil and gas come from?

Mantle Rock
Buried marine material that did not fully decompose
Swamp gases

2. Where can seismic exploration methods be used?

Only on land
Only at sea
Both on land and at sea

3. How does buried organic material turn into hydrocarbons?

The organic matter combines with hot clay to produce gas
The organic material is squeezed by great pressure until oil is released
Heat and pressure cause the large organic molecules to break down into shorter units that constitute petroleum

4. Which of the following is NOT a seismic exploration source?

Airgun
Earthquakes
Explosives

5. What are the units on the y axis of a seismic profile?

Time
Two way time
Depth

6. Geophones are used in seismic exploration for what purpose?

Producing seismic energy
Recording reflected seismic energy
Keeping the field crew in contact with each other

7. In which direction does oil or gas migrate?

North
Towards the equator
Towards the surface

8. What is porosity?

The interconnectivity of pore spaces in a rock
The small spaces that can fill with fluid or gas in rocks
A measure of grain size in sedimentary rocks

9. What property must a cap rock have in order to trap hydrocarbons?

It is very hard
It is igneous
It is impermeable

10. Which one of the following geological features could potentially be a hydrocarbon trap?

A volcano
An anticline
A continental shelf

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