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КОНТРОЛЬНА РОБОТА № 5

Варіант 1.

The study of petroleum geology centres logically around
three main processes-petroleum generation, migration and
accumulation. However, the emphasis is placed in the reverse
order. Entrapment is the heart of the industry. It is observable,
definable and measurable.
The experience of the industry is that petroleum occurs
more commonly and in larger quantities in sedimentary basins that
in areas of thin and incomplete sedimentary sequences; more
commonly and in rather larger quantities in rocks of Mesozoic and
Tertiary ages than in older or younger rocks; and more commonly
in anticlinal traps than in other types of trap. Experience also
indicates that petroleum is found more cheaply in sedimentary
basins where petroleum has been found before, and in areas where
petroleum has been found before.
The goal of petroleum geology must be to understand the
processes of oil and gas generation, migration and entrapment so
well that the speculative element of industry is significally reduced
and finally eliminated.

І. Choosing the Correct Definition for a Context:

Petroleum geology is:

a) the study of three main processes-petroleum generation,
migration and accumulation
b) the science that studies the processes under the Earth’s
surface
c) the geological understanding of the Earth
d) a variety of geology

II. Test Your Understanding of the Words:

“definable” in line 5 passage 1 means:

(a) unpredictable (c) guaranteed
(b) risky (d) certain