20250416-Afternoon

Select a topography that is suitable for the formation of oil and gas fields.

• Basement rock

• Oceanic crust

• Sedimentary basin

• Volcano

• Magma reservoir

Select a geological formation where oil and natural gas are generated from organic matters.

• Source rock

• Reservoir rock

• Cap rock

• Basement rock

• Carbonate rock

Select a common reservoir rock.

• Mad stone

• Shale rock

• Basement rock

• Claystone

• Sandstone

Select the type of trap indicated in red in the figure.

• Fault trap

• Anticlinal trap

• Stratigraphic trap

• Combinatorial trap

• Pinch out trapassessed.

In what percentage of the world's sedimentary basins have oil and gas fields been discovered?

• 10 %

• 30 %

• 50 %

• 70 %

• 90 %

Select the geological age when the most oil and gas fields were formed.

• Silurian-Devonian

• Triassic-Jurassic

• Cretaceous

• Paleogene

• Neogene

Select a correct API gravity of oil which has a specific gravity (60/60 °F) of 0.85.

• 29

• 31

• 33

• 35

• 37

What is the name of the oil with high sulfur content?

• Sweet oil

• Sour oil

• Bitter oil

• Spicy oil

• Salty oil

Select a correct explanation for biogenic gas.

• A gas that contains not only methane, but also a large amount of ethane and propane

• Carbon isotopic ratios (13C/12C) of biogenic gas is smaller than that of thermogenic gas.

• Biogenic gas accounts for the majority of the world's natural gas.

• Biogenic gas is classified as inorganic-origin gas

Which gases are classified as LPG, Liquefied Petroleum Gas? Select all that are correct.

• Methane

• Ethane

• Propane

• Butane

• Pentane