PE-1201 REVISION

The impermeable rock that forms the traps beneath which the hydrocarbons accumulate is called:

• Trap rock

• Rock salt

• Cap rock

• Hat rock

When hydrocarbons accumulate in a reservoir....

• water will form at the top and oil sits at the bottom

• oil will rise to the top and gas will remain at the bottom

• water sits at the bottom and gas at the top, with oil in the middle

• water will absorb all the oil and gas to form one later

What is the permeability of a reservoir rock a measure of?

• How quickly the rock was formed

• If the rock is likely to remain permanently in place

• The ease with which fluids can flow through the rock

• How long the rock has been formed

What are the two features that affect the free movement of the hydrocarbons that are formed within them?

Select two.

• Porosity

• Depth

• Age

• Permeability

Where rocks are extremely porous, and yet nearly impermeable, it means that fluid is trapped within individual pores but cannot pass through or connect to adjacent pores.

• True

• False

When higher temperatures are involved in the formation process, it is more likely that organic material that is trapped within the sedimentary rock will transform into which of the following.

• Oil

• Coal

• Water

• Gas

The rapid development of drilling to deeper depths, in deeper water and different geographical areas has resulted in an increased risk of:

• Blowouts

• Higher oil prices

• Shortage of drill pipe

• Dry holes

Typically, how long will the transformation process have taken for hydrocarbons to form?

• Decades

• Centuries

• Thousands of years

• Millions of years

There are three main ways in which plugging and abandonment can be done. What do they all have in common?

• They must all use inflatable, retrievable plugs

• They must comply with regulatory standards and specifications

• The well must be plugged for its entire depth

• They must be carried out in daylight

What will happen to an exploration well that is considered a 'dry hole'?

• It will be completed and produced

• It will be appraised and tested

• It will be plugged and abandoned

• It will be subject to a workover