Reservoir Engineering – MCQs 50 Score: 0 Attempted: 0/50 Subscribe 1. The primary objective of reservoir engineering is: (A) Refining crude oil (B) Maximizing hydrocarbon recovery from reservoirs (C) Transporting petroleum (D) Drilling new wells 2. A petroleum reservoir is defined as: (A) A tank storing crude oil (B) A subsurface porous rock containing hydrocarbons (C) An artificial pond (D) A refinery unit 3. The main rock types serving as reservoir rocks are: (A) Igneous rocks (B) Sedimentary rocks (C) Metamorphic rocks (D) Volcanic rocks 4. Porosity is defined as: (A) Storage capacity of the rock (B) Permeability of formation (C) Hydrocarbon saturation level (D) Rock density 5. The unit of porosity is: (A) Darcy (B) Percent (%) (C) psi (D) ft³ 6. Permeability is the ability of a rock to: (A) Store hydrocarbons (B) Allow fluids to flow through pores (C) Resist pressure (D) Dissolve hydrocarbons 7. The standard unit of permeability is: (A) psi (B) Darcy (C) ppm (D) ppg 8. Effective porosity refers to: (A) Total void space (B) Connected pore spaces contributing to flow (C) Isolated pore spaces (D) Fracture porosity only 9. Which fluid is typically found in petroleum reservoirs? (A) Oil only (B) Gas only (C) Water only (D) Oil, gas, and water 10. A reservoir drive mechanism that uses natural gas expansion is called: (A) Water drive (B) Solution gas drive (C) Gas cap drive (D) Gravity drainage 11. The energy source in a water drive reservoir is: (A) Expanding water from aquifers (B) Gas expansion (C) Gravity drainage (D) Artificial lift 12. The hydrocarbon initially in place (HIIP) is estimated using: (A) Darcy’s law (B) Material balance equation (C) Volumetric method (D) Both B and C 13. Recovery factor is defined as: (A) Oil in place × porosity (B) Percentage of hydrocarbons produced from total in place (C) Oil produced per day (D) Flow efficiency 14. Primary recovery in reservoirs is driven by: (A) Artificial lift only (B) Natural reservoir energy (C) Enhanced oil recovery methods (D) Hydraulic fracturing 15. Secondary recovery methods mainly involve: (A) Steam injection (B) Water flooding (C) Polymer injection (D) Gas injection only 16. Enhanced oil recovery (EOR) methods include: (A) Thermal recovery (B) Gas injection (C) Chemical flooding (D) All of the above 17. Darcy’s law relates to: (A) Oil density (B) Fluid flow through porous media (C) Gas compressibility (D) Wellbore pressure 18. The unit of viscosity is: (A) Darcy (B) psi (C) Centipoise (cP) (D) ft³ 19. The mobility ratio in reservoir engineering is the ratio of: (A) Oil to gas viscosity (B) Displacing fluid mobility to displaced fluid mobility (C) Water saturation to oil saturation (D) Flow rate to pressure drop 20. A reservoir simulation model is used to: (A) Visualize drilling tools (B) Predict reservoir performance (C) Estimate porosity only (D) Refine crude oil 21. Gas reservoirs are classified as: (A) Dry gas and wet gas (B) Oil-bearing (C) Volcanic (D) Carbonate 22. Capillary pressure is the pressure difference between: (A) Oil and gas (B) Non-wetting and wetting phases across pore throats (C) Reservoir and surface (D) Wellbore and casing 23. Wettability in reservoirs refers to: (A) Fluid preference to adhere to solid surfaces (B) Permeability only (C) Water flooding efficiency (D) Mud filtrate invasion 24. Reservoir heterogeneity means: (A) Uniform rock properties (B) Variation in rock and fluid properties (C) Homogeneous fluid flow (D) Constant permeability 25. The term “aquifer support” in reservoirs refers to: (A) Gas expansion (B) Water influx maintaining reservoir pressure (C) Oil shrinkage (D) Cementing support 26. A fractured reservoir usually has: (A) Higher permeability due to fractures (B) Lower porosity (C) Natural flow channels (D) All of the above 27. The bubble point pressure is: (A) Pressure below which gas starts coming out of solution (B) Pressure above reservoir pressure (C) Gas injection pressure (D) Cementing pressure 28. Above bubble point pressure, oil exists as: (A) Single-phase liquid (B) Gas only (C) Oil and gas mixture (D) Water saturated fluid 29. The gas-oil contact (GOC) separates: (A) Oil and water (B) Gas and oil zones (C) Gas and aquifer (D) Permeable and impermeable zones 30. The water-oil contact (WOC) separates: (A) Gas and oil (B) Oil and water zones (C) Gas and water (D) Oil and aquifer 31. Reservoir pressure is usually measured in: (A) psi (B) cP (C) Darcy (D) ppg 32. A PVT analysis is performed to: (A) Determine hydrocarbon properties under pressure and temperature (B) Check mud density (C) Measure cement quality (D) Drill cuttings composition 33. The term “skin effect” in wells refers to: (A) Wellbore damage affecting productivity (B) Drill bit wear (C) Friction in drill pipe (D) Well casing design 34. Productivity Index (PI) is defined as: (A) Reservoir pressure ÷ flow rate (B) Flow rate ÷ pressure drawdown (C) Porosity × permeability (D) Darcy’s law constant 35. The decline curve analysis is used to: (A) Predict future production rates (B) Drill directional wells (C) Cement casing (D) Reduce reservoir heterogeneity 36. The material balance equation assumes: (A) Conservation of mass in the reservoir (B) Constant pressure always (C) Only gas drive mechanism (D) Artificial lift 37. The reservoir parameter “saturation” refers to: (A) Percentage of pore space filled with fluids (B) Rock density (C) Oil viscosity (D) Fracture orientation 38. Relative permeability is a function of: (A) Pressure and temperature (B) Saturation of different fluids in the reservoir (C) Rock compressibility (D) Decline curve 39. Oil formation volume factor (Bo) is defined as: (A) Reservoir volume of oil ÷ surface volume of oil (B) Porosity × permeability (C) Gas saturation ÷ oil saturation (D) Recovery factor ÷ initial oil 40. Gas formation volume factor (Bg) is defined as: (A) Reservoir gas volume ÷ surface gas volume (B) Oil volume ÷ water volume (C) Gas density × pressure (D) Recovery factor × porosity 41. Compressibility in reservoirs is: (A) Change in volume per unit pressure change (B) Rock density increase (C) Porosity loss due to drilling (D) Oil shrinkage only 42. A reservoir with no external support will primarily deplete by: (A) Gas expansion (B) Water influx (C) Thermal drive (D) Artificial lift 43. Reservoir simulation grids are divided into: (A) Wells and pipes (B) Blocks or cells (C) Pore throats (D) Core plugs 44. Core analysis in reservoirs provides: (A) Porosity and permeability data (B) Pressure-volume data (C) Seismic interpretation (D) Mud weight calculation 45. Well testing is conducted to estimate: (A) Reservoir properties and well performance (B) Drill bit efficiency (C) Pump horsepower (D) Cement bond strength 46. Pressure transient analysis is based on: (A) Flow equations and pressure behavior with time (B) Drilling rate (C) Production decline (D) Seismic wave reflections 47. Reservoir compaction occurs due to: (A) Overburden pressure exceeding fluid pressure (B) Mud weight increase (C) Blowout preventer failure (D) Gas injection 48. Gas-oil ratio (GOR) is measured in: (A) psi (B) scf/bbl (C) Darcy (D) ppg 49. The term “coning” in reservoir engineering refers to: (A) Upward movement of water or gas into the production well (B) Bit wear during drilling (C) Mud invasion (D) Reservoir mapping 50. The ultimate goal of reservoir engineering is: (A) Safe drilling operations (B) Efficient recovery and management of hydrocarbons (C) Refining crude oil (D) Designing pipelines FOUNDATIONAL SUBJECTS (Year 1 – Year 2)Engineering Mechanics (Statics & Dynamics) – MCQsFluid Mechanics – MCQsThermodynamics – MCQsComputer Programming (e.g., MATLAB, Python) – MCQsIntroduction to Engineering – MCQsGeology for Engineers – MCQsTechnical Communication – MCQs CORE PETROLEUM ENGINEERING SUBJECTS (Year 2 – Year 4)Introduction to Petroleum Engineering – MCQsPetroleum Geology – MCQsDrilling Engineering – MCQsReservoir Engineering – MCQsProduction Engineering – MCQsPetroleum Fluid Properties – MCQsWell Logging and Formation Evaluation – MCQsPetroleum Economics – MCQsPetroleum Refining and Processing – MCQs Natural Gas Engineering – MCQsEnhanced Oil Recovery (EOR) – MCQsWell Testing – MCQsReservoir Simulation – MCQsDrilling Fluids and Cementing – MCQsOffshore Petroleum Engineering – MCQsHealth, Safety and Environment (HSE) – MCQsPetroleum Project Management – MCQsCorrosion Engineering – MCQsArtificial Lift Techniques – MCQsPetrophysics – MCQs LABORATORIES & PRACTICALS (Theory-based MCQs can be made from these)Drilling Fluids Lab – MCQsCore Analysis Lab – MCQsReservoir Simulation Lab – MCQsRock and Fluid Properties Lab – MCQsWell Logging Lab – MCQs ELECTIVES (Optional/Advanced)Energy Transition and Sustainability – MCQsUnconventional Resources (Shale, Tight Gas, etc.) – MCQsData Analytics in Petroleum Engineering – MCQsGeographic Information Systems (GIS) – MCQsPetroleum Law and Policy – MCQsPipeline Engineering – MCQsRenewable Energy Integration – MCQs