Petroleum Production Operations Practice Test 8

1. At low and moderate temperatures, what is the reaction rate of dolomite as compared to limestone?

rate_limestone > 3.rate_dolomite

rate_limestone > 2.rate_dolomite

rate_limestone < 2.rate_dolomite

2. Surfactants can alter the wettability of the reservoir rock.

False

True

3. As temperature increases, the acid spends faster on carbonates.

False

True

4. As a requirement for well treatment, the surfactant should prevent the formation of emulsions.

False

True

5. Cationic surfactants water-wet limestone or dolomite up to pH of 4.

False

True

6. What is the primary reason to acidize the sandstone wells?

To decrease the permeability

To create fracture

To decrease the flow rate

To increase the permeability

7. Methyl alcohol may be added to the acid during acidizing to reduce the surface tension.

False

True

8. What is Amphoteric surfactant?

Organic molecules that do not ionize

Organic molecules where the water-soluble group is positively charged

Organic molecules where the water-soluble group is negatively charged

Organic molecules where the water-soluble group can be either positively, negatively charged or uncharged or uncharged

9. What is a Non-ionic surfactant?

Organic molecules where the water-soluble group is positively charged

Organic molecules that do not ionize

Organic molecules where the water-soluble group can be either positively or negatively charged

Organic molecules where the water-soluble group is negatively charged

10. To avoid CaF₂ precipitation, HCl precipitation is needed in sandstone acidizing.

True

False