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In reservoir engineering, the term “POR” refers to:
a) Pressure on Reservoir
b) Porosity
c) Point of Reference
d) Production Over Rate
Answer: b) Porosity
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API gravity is used to measure:
a) Well depth
b) Oil density
c) Gas composition
d) Water cut
Answer: b) Oil density
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The most common offshore drilling structure for shallow waters is:
a) Tension Leg Platform
b) Jack-up Rig
c) Semi-submersible
d) Spar Platform
Answer: b) Jack-up Rig
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In material balance equation, We represents:
a) Reservoir energy
b) Water influx
c) Well efficiency
d) Wellbore enlargement
Answer: b) Water influx
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Which of the following is a secondary recovery method?
a) Primary depletion
b) Gas injection
c) Hydraulic fracturing
d) Core analysis
Answer: b) Gas injection
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Darcy’s law is used to determine:
a) Drilling speed
b) Permeability
c) Wellhead pressure
d) Reservoir temperature
Answer: b) Permeability
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A blowout preventer (BOP) is used to:
a) Increase drilling speed
b) Prevent uncontrolled flow of formation fluids
c) Filter drilling mud
d) Pump cement
Answer: b) Prevent uncontrolled flow of formation fluids
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Which gas is most commonly used for gas lift operations?
a) Nitrogen
b) Natural gas
c) Carbon dioxide
d) Helium
Answer: b) Natural gas
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The process of injecting acid into a reservoir to increase permeability is called:
a) Acidizing
b) Stimulation
c) Fracturing
d) Perforating
Answer: a) Acidizing
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In wireline logging, SP log primarily measures:
a) Porosity
b) Permeability
c) Formation water salinity
d) Oil viscosity
Answer: c) Formation water salinity
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Which of the following is an artificial lift method?
a) Water flooding
b) Gas lift
c) Polymer injection
d) Steam injection
Answer: b) Gas lift
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The term “skin factor” in well testing indicates:
a) Wellbore storage
b) Formation damage or stimulation
c) Permeability
d) Porosity
Answer: b) Formation damage or stimulation
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Which logging method is best for determining lithology?
a) Gamma-ray log
b) Sonic log
c) Resistivity log
d) Neutron log
Answer: a) Gamma-ray log
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Enhanced oil recovery (EOR) methods include:
a) Thermal recovery
b) Gas injection
c) Chemical flooding
d) All of the above
Answer: d) All of the above
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Which of these is NOT a drilling fluid additive?
a) Bentonite
b) Barite
c) Diesel
d) Cement
Answer: d) Cement
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The term “spudding” refers to:
a) Starting drilling operations
b) Running casing
c) Cementing
d) Completing the well
Answer: a) Starting drilling operations
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