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Execises

Execise 1. Complete the sentences
1. Geology (from the Greek "earth" and - logia, i.e. "study
of, discourse") is the science comprising the…..
2. Oil and gas (hydrocarbons) are valuable resources
hidden……..
3. When organic rich rocks (usually shales containing 4-20
weight % total organic matter (TOC) are buried, they……..
4. The three essentials for a commercial accumulation of oil
are, therefore…
5. What happens to the great masses of sediments that are
carried into the sea? When the streams that carry them enter ….
6. Oil comes from the slow distillation of . . .
7. The three essentials for a commercial accumulation are . . .
8. When the streams that carry sediments enter the quieter
waters of the stream, than . . .
9. The source beds will probably be . . .
10. Under the pressure mud becomes . . .

Execise 2. Which of the sentences written bellow are true
1. The three essentials for a commercial accumulation are
source beds, reservoir beds and traps.
2. The basic elements of a petroleum system consists of a
source rock, a porous and permeable reservoir rock and a tight cap
rock.
3. When the streams that carry them enter the quieter waters
of the sea, the currents of the streams are checked and begin to
drop their load.
4. The reservoir beds will probably be a limestones, but may
be one of the porous varieties of sandstone or its cousin dolomite.
5. The face of nature is always static of fixed.
6. Under the pressure mud becomes lame stones.

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