The primary mobility-related benefit of polymer flooding is:
A) Increasing oil API gravity
B) Reducing water viscosity
C) Increasing injected-water viscosity
D) Increasing reservoir permeability
💬 Comment your answer: A/B/C/D

A formation shows:
Low gamma ray
High resistivity
Significant porosity
Large neutron-density separation
The most likely interpretation is:
A) Shale
B) Clean water-bearing sandstone
C) Clean gas-bearing sandstone
D) Tight carbonate
💬 Comment your answer: A/B/C/D

During drilling, mud-pit volume increases and flow continues after pumps are stopped. The most probable immediate interpretation is:
A) Lost circulation
B) Formation influx/kick
C) Differential sticking
D) Bit balling
💬 Comment your answer: A/B/C/D

During drilling, mud-pit volume increases and flow continues after pumps are stopped. The most probable immediate interpretation is:
A) Lost circulation
B) Formation influx/kick
C) Differential sticking
D) Bit balling
💬 Comment your answer: A/B/C/D

Under favorable reservoir conditions, which drive mechanism generally provides the highest ultimate oil recovery?
A) Solution-gas drive
B) Gas-cap drive
C) Strong water drive
D) Rock/fluid expansion
💬 Comment your answer: A/B/C/D

For a volatile oil system, reducing separator pressure at approximately constant temperature generally causes:
A) More gas to remain dissolved
B) More gas to evolve from solution
C) Oil viscosity to become zero
D) Gas density to become zero
💬 Comment your answer: A/B/C/D

Why does Bo exhibit characteristic behavior around the bubble point?
A) Oil becomes completely immobile
B) Maximum dissolved gas is present in oil at bubble point
C) Gas viscosity becomes zero
D) Oil density becomes infinite
💬 Comment your answer: A/B/C/D

🔥 GATE PE & ONGC CBT 2027 — PREPARE SMART, NOT RANDOMLY!
A serious aspirant needs 3 things:
⏰ TIME TABLE — Plan your day & stay consistent
📝 SHORT NOTES — Revise faster & retain important concepts
🎯 ACE TEST SERIES — Experience exam-level questions, analyse performance & improve weak areas
💡 You don't need more time. You need a better plan.
PLAN → STUDY → REVISE → TEST → ANALYSE → IMPROVE → REPEAT 🔥
🏆 Your rank is built by what you do consistently today.
GATE PE & ONGC — Your dream is achievable. Now make your preparation count! 🚀

All standard books , study material, question papers, ONGC Manuals, & interview guide material is already uploaded in ACE google drive for GATE Petroleum Engineering.

Everything is open source.. Download everything from there, for free.

https://drive.google.com/drive/folders/1ldOW-BzVR7qIkUWhRtSdTD4oVsV0jJvP?usp=sharing

Gas lift primarily increases production by:
A) Increasing reservoir permeability
B) Increasing oil viscosity
C) Reducing average density of the fluid column
D) Increasing formation pressure
💬 Comment your answer: A/B/C/D

For a favorable immiscible displacement, the mobility ratio M should generally be:
A) M>1
B) M=1only
C) M<1
D) M=0
💬 Comment your answer: A/B/C/D

“Why is ACE Petroleum’s test series so affordable?”
Because quality preparation shouldn’t be a luxury. 🎯
We believe a serious GATE PE & ONGC aspirant should have access to exam-level questions, detailed solutions, performance analysis and real test practice—without paying an unreasonable price.
💡 LOW PRICE. HIGH VALUE. SERIOUS PREPARATION.
With ACE Test Series, you get:
✅ Full-length & sectional tests
✅ Subject-wise practice
✅ Previous-year based questions
✅ Detailed solutions
✅ All India Rank & performance analysis
✅ Identify your weak areas
✅ Improve speed & accuracy
✅ Real exam experience
🚀 We didn’t reduce the quality to reduce the price. We reduced the price to reach more aspirants.
Your preparation deserves the best. Your budget shouldn’t stop you. 🏆
🔥 ACE TEST SERIES — Prepare Smart. Practice Hard. Rank Higher.
#GATEPE2027 #ONGCCBT2027 #PetroleumEngineering #GATEPreparation #ONGCPreparation #ACEPetroleum #ACETestSeries #PetroleumEngineer #PSUJobs #GATEPE #ONGC #TestSeries #EngineeringStudents

An ESP produces significantly less head than expected despite correct rotational speed. The most likely cause is:
A) Free gas interference at pump intake
B) Increased reservoir permeability
C) Reduced water cut
D) Higher oil API gravity
💬 Comment your answer: A/B/C/D

A sandstone well has low productivity because of near-wellbore formation damage caused by fines. The most appropriate approach is generally:
A) Hydraulic fracturing only
B) Acid treatment appropriate to the damage mechanism
C) Gas lift
D) Water injection
💬 Comment your answer: A/B/C/D

A positive skin factor � indicates:
A) Formation stimulation
B) Near-wellbore damage
C) Infinite permeability
D) Zero pressure drop
💬 Comment your answer: A/B/C/D

For immiscible water flooding, increasing the viscosity of injected water while keeping oil properties unchanged generally:
A) Increases mobility ratio
B) Decreases mobility ratio
C) Has no effect
D) Makes relative permeability equal to 1
💬 Comment your answer: A/B/C/D

During circulation, bottom-hole pressure is greater than static hydrostatic pressure primarily because of:
A) Formation temperature
B) Annular frictional pressure loss
C) Drillstring weight
D) Bit rotation
💬 Comment your answer: A/B/C/D

For gas material-balance calculations, which quantity is commonly used to account for gas compressibility?
A) p
B) p/z
C) z
D) zp
💬 Comment your answer: A/B/C/D