# Petroleum Production Operations Questions and Answers – Flow Properties of Primary Cements

This set of Petroleum Production Operations Multiple Choice Questions & Answers (MCQs) focuses on “Flow Properties of Primary Cements”.

1. Which of the following model better describes the flow properties of cement?
a) Bingham Plastic model
b) Power law model
c) Newtonian Model
d) Non- Newtonian Model

Explanation: The power law model better describes the flow properties of cement. According to the Power law model Shear Stress= K(Shear rate) n. Where K is the consistency index.

2. How can the hydrostatic pressure head be calculated?
a) 0.052*ρ*True Vertical Depth
b) 0.052*ρ*Measured Depth
c) 0.433*ρ*True Vertical Depth
d) 0.433*ρ*Measured Depth

Explanation: The hydrostatic pressure head be calculated by using the formula 0.052*ρ*True Vertical Depth, ρ is the Mud Weight in pounds per gallon. In the Oil and Gas industry, this equation has immense essence in calculating the hydrostatic head of the fluid column.

3. BHST affects the integrity of the cement and compressive strength development for the life of the well.
a) True
b) False

Explanation: Yes, BHST affects the integrity of the cement and compressive strength development for the life of the well. The full form of the BHST is Bottom Hole Static Temperature. If the operator knows the real temperature the cement will encounter then it helps the operator to design the slurry in that specific way.

4. What is the full form of BHCT?
a) Bottom Hole Circulating Temperature
b) Bottom-Hole Cement Temperature
c) Bottom Hole Cake (Mud) Temperature
d) Bottom Hole Condensed (fluid) Temperature

Explanation: The full form of BHCT is Bottom Hole Circulating Temperature. It is the temperature that the cement will be exposed to as it is circulating past the bottom of the casing.

5. We cannot calculate the shear stress by using the Fann VG Viscometer.
a) True
b) False

Explanation: We can use the Fann VG Viscometer to calculate the shear stress. Fann dial readings taken at 600, 300, 200, 100 rpm are converted to shear stress. We can calculate the gel strength (pounds per 100 square foot) as well as the Yield point and Plastic viscosity by using the Fann VG Viscometer.

Sanfoundry Global Education & Learning Series – Petroleum Production Operations.

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