Petroleum Production Operations Mock Test 8

10%

Question 1 of 10

1. Which of the following is incorrect regarding surfactant?

Clean up time can be reduced by using the surfactants in oil wells

Surfactant reduces the surface tension

Clean up time can be reduced by using the surfactants in oil wells

Clean up time can be increased by using the surfactants in service wells

Question 1 of 10

Question 2 of 10

2. Sulfamic acid reacts as ___ as HCl.

25% of the rate

Slow

70% of the rate

Fast

Question 2 of 10

Question 3 of 10

3. Emulsion - blocking and water – blocking is usually not a problem in _____ reservoirs except during acidizing.

Sandstone

Evaporites

Limestone and Dolomite

Shale

Question 3 of 10

Question 4 of 10

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

False

True

Question 4 of 10

Question 5 of 10

5. Fracture Acidizing has no application in sandstone wells.

False

True

Question 5 of 10

Question 6 of 10

6. Surfactants are the surface-active chemicals that contain at least two functional groups.

True

False

Question 6 of 10

Question 7 of 10

7. Which of the following is correct regarding the action of anionic surfactant?

Oil wet sand, shale or clay

Doesn’t alter the wettability

Alter any type of wettability of the rock

Water-wet negatively charged sand, shale or clay

Question 7 of 10

Question 8 of 10

8. The objective of acidizing limestone and dolomite wells is to remove damage near the wellbore.

True

False

Question 8 of 10

Question 9 of 10

9. To overcome the difficulty of losing the surface activity of the surfactants above 50,000 ppm salt which of the following is required?

After the flush of low saline water

After the flush of high saline water

Pre-flush of low saline water

Pre-flush of high saline water

Question 9 of 10

Question 10 of 10

10. What is an Anionic surfactant?

Organic molecules where the water-soluble group is negatively charged

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

Question 10 of 10