نموذج امتحان شركه هليبرتون للبترول
Basic Geology
1. Which of the following is not a stratigraphic oil trap?
· Unconformity.
· Reef.
· Anticline.
· Pinchout.
2. Index fossils are most useful when they cover a large geological age while exist in a limited geographical area so that they identify (or date) the Rock formation in which they are found.
· True.
· False.
3. The SaSO4 is known in nature as:
· Limestone
· Anhydrite.
· Gypsum.
· None of the above.
4. Fissility is a rock sample description specific for:
· Limestone.
· Shale.
· Sandstone.
· Salt.
5. Which of the following is not a hydrocarbon:
· Methane.
· Pentane.
· Acetylene.
· None of the above.
· All of the above.
6. The definition: "the pore spaces – connected or disconnected – resulting through alteration of a rock, commonly by processes such as dolimitization, dissolution or fracturing" belongs to:
· Primary Porosity.
· Permeability.
· Secondary porosity.
· Effective porosity.
7. According to moh's scale of rock hardness, which of the following minerals is the softest:
· Orthoclase.
· Gypsum.
· Quartz.
· Fluorite.
8. Which of the following describes a rock with clay content:
· Calcareous.
· Fossiliferous.
· Arenaceous.
· Argillaceous.
9. Which of the following is not a fault type:
· Strike- slip.
· Oblique – slip.
· Anti- dip.
· Dip- slip.
10. Give an example of a rock with high porosity and high permeability.
………………………………………….
11. Give an example of a rock with high porosity and low permeability.
………………………………………….
12. Give an example of a rock with low porosity and low permeability.
………………………………………….
13. Which of the following is not an evaporite rock:
· Gypsum.
· Evaporite.
· Muscovite.
· Salt.
14. Arrange the following ages chronologically (mark them 1 to 5 where 1 is the oldest):
· Tertiary.
· Cambrian.
· Triassic.
· Jurassic.
· Quaternary.
Good Luck
