15 Questions
Which factor is NOT a major determinant of areal sweep efficiency?
Total volume of fluid injected
Which factor is NOT a major determinant of vertical sweep efficiency?
Total volume injection
Which flood pattern requires a smaller number of injection wells and is recommended for high aquifer fields?
External Water Injection
Which of the following is a key difference between Improved Oil Recovery (IOR) and Enhanced Oil Recovery (EOR)?
IOR methods focus on supplementing reservoir forces and energy, while EOR refers to the recovery of oil left behind after primary and secondary recovery methods
What is the main objective of waterflooding in oil recovery?
To maintain reservoir pressure
What is the Voidage Replacement Ratio (VRR) used for in waterflooding?
To balance the injection and production rates at reservoir conditions
Which type of recovery targets immobile oil that cannot be produced due to high capillary, IFT, or wettability?
Enhanced oil recovery (EOR)
What is the most common technique used in secondary oil recovery when there is insufficient underground pressure to move the remaining oil?
Waterflooding
What does EOR stand for in the context of oil recovery?
Enhanced oil recovery
Which of the following injection patterns is similar to the five spot but with an extra injection well drilled at the middle of each side of the square?
Nine spot
What is the difference between normal and inverted well arrangements in terms of injection wells per pattern?
Normal well arrangements have four injection wells per pattern, while inverted well arrangements have one injection well per pattern.
Which injection pattern is typically used in gas injection projects?
Crestal injection
What is the purpose of waterflooding performance monitoring?
To modify the original waterflood design and operating guidelines based on field production data.
What modifications can be made to improve the performance of waterfloods?
All of the above.
In which type of oil fields has waterflooding been used successfully?
Both offshore and onshore oil fields
Test your knowledge on factors affecting waterflood performance! This quiz will cover topics such as EA Areal Sweep Efficiency, EV Vertical Sweep Efficiency, fluid mobility/mobility ratio, pattern type, areal heterogeneity, and total volume of fluid injected. See how well you understand the key factors that determine the effectiveness of waterflood operations.
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