SAT Day 3 - Production

Which of the following reserve types has the lowest probability of existence according to the SEC classification?

• Proven

• Possible

• Probable

• Contingent

What does the recovery factor primarily depend on?

• Gas compressibility, porosity, and temperature

• Well spacing, FVF, and water saturation

• Oil viscosity, reservoir permeability, and reservoir drive

•  Pressure drop, shrinkage factor, and volume of gas

What is the primary objective of a pressure drawdown test?

• To determine the gas saturation in the reservoir

• To measure the flowing pressure after production begins

• To estimate the maximum flow rate of the well

• To evaluate interference between multiple wells

What is the main purpose of a Drill Stem Test (DST)?

• To perform long-term monitoring of production wells

• To analyze permanent completion equipment

• To measure reservoir pressure through pulse signals

• To assess reservoir potential before completing the well

Which of the following correctly describes Secondary Recovery?

• Maintains reservoir pressure by injecting fluids

• Involves heating the reservoir to mobilize oil

• Uses natural forces like gravity

• Recovers oil without additional input

Which of the following recovery methods typically uses the natural energy of the reservoir to extract oil?

• Primary Recovery

• Secondary Recovery

• Tertiary Recovery

• Artificial Lift Recovery

What is the type of reservoir drive where gas dissolved in oil expands to push the oil?

• Water Drive

• Solution Gas Drive

• Gravity Drive

• Gas Cap Drive

Which reservoir drive uses the expansion of gas in a cap above the oil to push it?

• Free Gas Cap Drive

• Gravity Drive

• Water Drive

• Solution Gas Drive

What is the typical oil recovery factor for water drive reservoirs?

• 5–30%

• 20–50%

• 35–75%

• 15–40%

What must be removed from injected water to avoid plugging the reservoir?

• Dissolved gases

• Suspended solids

• Sand particles

• Salts