In water flooding, the main recovery mechanism is:
A) Gravity drainage
B) Displacement of oil by injected water
C) Solution gas drive
D) Rock compaction drive

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Skin factor in well testing indicates:
A) Permeability of formation
B) Damage or stimulation near wellbore
C) Reservoir porosity
D) Flowing bottom hole pressure

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Net Present Value (NPV) of an oilfield project will increase if:
A) Oil price decreases
B) Operating costs increase
C) Discount rate increases
D) Production volume increases

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Blowout Preventers (BOPs) are installed:
A) On surface casing only
B) On production tubing only
C) On wellhead to control unexpected pressure surges
D) On mud pumps

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Which process is used in refineries to improve the octane number of gasoline?
A) Distillation
B) Cracking
C) Reforming
D) Polymerization

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Barite (BaSO₄) is added to drilling mud mainly for:
A) Increasing viscosity
B) Preventing corrosion
C) Increasing mud weight
D) Lubricating the bit

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Which of the following is not a primary reservoir drive mechanism?
A) Gas cap expansion
B) Water drive
C) Rock compaction
D) Steam injection

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The main cause of most offshore accidents is:
A) Poor equipment design
B) Human error
C) Weather conditions
D) Reservoir uncertainty

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Shale gas production primarily requires:
A) Natural drive mechanisms
B) Hydraulic fracturing
C) Gas lift
D) Water flooding

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The primary purpose of injecting a Low-Dosage Hydrate Inhibitor (LDHI), specifically a kinetic hydrate inhibitor (KHI), into a deepwater subsea flowline is not to prevent hydrate formation entirely, but to achieve which critical outcome? https://gateaceinpetroleumots.conductexam.com/
(A) Lowering the hydrate equilibrium temperature. 
(B) Shifting the hydrate equilibrium pressure to a higher value. 
(C) Allowing the hydrates to form but preventing agglomeration into flow-blocking masses. 
(D) Increasing the overall flowline heat transfer coefficient.

In a shale gas reservoir, which physical phenomenon is the dominant mechanism responsible for storing and transporting gas molecules within the ultra-fine pore network of the organic-rich kerogen matrix?  https://gateaceinpetroleumots.conductexam.com/
 
(A) Darcy flow (viscous flow). 
(B) Adsorption and surface diffusion. 
(C) Capillary condensation. 
(D) Bulk turbulent flow.

Q- In Pressure Transient Analysis (PTA) of a hydraulically fractured vertical well, a characteristic log-log pressure derivative plot displaying a {1/2} slope line in the late-time region typically indicates which specific flow regime? 
(A) Linear flow toward the fracture face.
(B) Bounded reservoir (depletion) behavior.
(C) Spherical flow near the wellbore.
(D) Pseudosteady-state flow.
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