Petroleum Production Operations Mock Test 9

10%

Question 1 of 10

1. What is the most common purpose for fracking in the U.S?

Natural gas

Mineral ores

Geothermal energy

Petroleum

Question 1 of 10

Question 2 of 10

2. Which of the following is correct regarding the fracture gradient?

Pressure gradient in the fracture in excess of the fracture propagation pressure gradient

Pressure gradient in the fracture in less of the fracture propagation pressure gradient

It is the ratio of Fracture closure pressure to a depth

The pressure required to hold the fracture open

Question 2 of 10

Question 3 of 10

3. Which of the following is correct regarding the Surfactants?

Used to limit the growth of microbes

Known as gelation chemicals

Used to lower the surface tension

Prevent a build-up of minerals in the inner wall

Question 3 of 10

Question 4 of 10

4. How can the vertical stress be calculated by considering the pore P_ressures?

σ = 0.007ρD - P_r

σ = 0.72ρD - P_r

σ = 0.009ρD

σ = 0.07ρD

Question 4 of 10

Question 5 of 10

5. In which of the following the environmentalists are more concerned with due to fracking?

Groundwater

Endangered species

Air quality

Seismic activity

Question 5 of 10

Question 6 of 10

6. Which of the following is correct regarding the HCl?

Used to lower the surface tension

Used to limit the growth of microbes

Known as gelation chemicals

Used at some sites to reduce the pressure when shale is cracked first

Question 6 of 10

Question 7 of 10

7. In which of the following case, foamed acidizing is not preferred?

Liquid sensitive rock

Carbonate formation

High permeability formation

Liquid sensitive Carbonate formation

Question 7 of 10

Question 8 of 10

8. Which of the following is correct regarding Ammonium Persulfate?

Eliminates oil from an emulsion

Is a biocide that eliminates bacteria found in water

Allows a delayed break down of the gel

Known as gelation chemicals

Question 8 of 10

Question 9 of 10

9. Which of the following is correct regarding the Thickeners?

Used to lower the surface tension

Used to limit the growth of microbes

Prevent a build-up of minerals in the inner wall

Known as gelation chemicals

Question 9 of 10

Question 10 of 10

10. In which of the following drilling fracking works mainly?

Vertical drilling

Strip mining

Surface mining

Horizontal drilling

Question 10 of 10