Variant-II

How many oil & gas regions are in Kazakhstan?

• 23

• 15

• 5

• 10

Choose oilfields which related to Pre-Caspian oil & gas province.

(more than one choice could be possible)

• Kashagan

• Kumkol

• Kenkiyak

• Uzen

Do you agree that S-Waves are shear waves that move slower and can only travel through solids.

• Yes

• No

1. Why does seismic velocity increase with depth?

What logging method is analog of Seismic exploration, but within wellbore?

Which type of well log is used to measure the natural radioactive properties of a formation?

• Neutron log

• Gamma ray log

• SP log

• Resistivity log

Can you explain what is "wash-out"?

Explain why caliper logs are essential in wireline logging operations

• They measure formation resistivity.

• They provide information about the borehole size and shape.

• They identify hydrocarbon saturation.

• They determine natural gamma radiation.

When interpreting neutron-density logs, what does a "crossover" indicate?

• High water saturation

• Shale content

• Gas presence

• Tight formation

Can you draw "Shale line" and "Sand line'' and give brief explanation what does it mean?