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Exploration
E
 xploration is almost like detective work. It requires looking for
clues, careful observation of ground conditions, taking notes of
different information and the evaluation of survey data. This is the job
of petroleum
geoscientists
, who are experts on rocks.
Petroleum geoscientists working at oil companies begin looking for
places where there might be oil. They look for signs that may indicate
the presence of hydrocarbons underground and are responsible for
determining the best places to drill.
They start by examining the shapes of different underground layers
of rock. They have to use special tools in order to ‘see’ the rocks
underground. Thus, using advanced technology—and special tools
like aerial photography, satellite pictures and specialized machines
that measure variations in the Earth’s gravity and magnetic fields—
geoscientists try to identify likely crude oil fields.
Chapter 2 . Finding Oil (Upstream)
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