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Initiative by IITians & Experts to guide aspirants for Petroleum Eng. CBT, GATE, SPE, PSUs..etc. & Interviewsππ― Website:- gateaceinpetroleumots.conductexam.com/ π© apigateinpetroleum@gmail.com β€οΈFB-Apiace Est.Dt: 3-07-2019
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π¨ GATE 2026 Petroleum Engineering Official Answer Key is OUT!
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π― Why this matters:
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Gas hydrate formation in flowlines is promoted by:
A. High temperature
B. Low pressure + low temperature
C. High salinity
D. Presence of condensate
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The drill string component that provides weight on bit is:
A. HWDP
B. Drill collars
C. Stabilizers
D. Kelly
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The primary function of a packer in completion is:
A. Cement production
B. Provide zonal isolation
C. Increase porosity
D. Reduce GOR
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The best indicator of well deliverability during testing is:
A. Static temperature
B. Flow-after-flow test results
C. Casing shoe integrity
D. Coring data
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A key controlling factor in miscible gas injection EOR is:
A. API gravity
B. Minimum miscibility pressure
C. Water saturation
D. Capillary pressure only
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A mud with high gel strength may cause:
A. Better hole cleaning
B. Lost circulation
C. Surge and swab issues
D. Higher ROP
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Multilateral wells are drilled mainly to:
A. Increase casing strength
B. Access multiple reservoir layers
C. Avoid sidetracks
D. Reduce mud losses
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NMR logs are primarily used to estimate:
A. Formation temperature
B. Free vs. bound fluid volumes
C. Sandstone lithology
D. Cement thickness
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In gas lift, lowering the injection depth generally:
A. Reduces lift efficiency
B. Increases lift efficiency
C. Stops gas injection
D. Increases backpressure
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Waterflood breakthrough occurs when:
A. Mobility ratio is <1
B. Reservoir pressure becomes zero
C. Water front reaches the producer
D. Injection rate is too low
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The main reason for stuck pipe due to differential sticking is:
A. High annular velocity
B. High mud filtrate loss
C. Fast ROP
D. Smaller drill collars
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The most accurate formation permeability is measured by:
A. Log-derived permeability
B. Core analysis
C. MWD tools
D. Drill stem test
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ESPs are avoided in:
A. High GOR wells
B. High salinity wells
C. Low temperature wells
D. Shallow wells
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Gas coning is more common in wells:
A. With low permeability
B. With high vertical permeability
C. Operating at low drawdown
D. With high water saturation
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The rate of penetration (ROP) decreases drastically when:
A. Mud weight is reduced
B. Differential pressure increases
C. Rotary RPM increases
D. Bit teeth are sharp
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A top-drive system mainly helps reduce:
A. WOB
B. Tripping time
C. Mud weight
D. Well trajectory
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