Pete 4320 final test questions & answers 2024/2025
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Module
Pete 4320
Institution
Pete 4320
Pete 4320 final test questions & answers 2024/2025
Fractional flow model - ANSWERSModel with thick/significant transition zone (thin reservoir) (no sharp interface)
Fractional flow - ANSWERSModel that assumes uniform co2 distribution vertically, big transition zone
Fractional flow model ...
Pete 4320 final test questions & answers
2024/2025
Fractional flow model - ANSWERSModel with thick/significant transition zone (thin reservoir) (no sharp
interface)
Fractional flow - ANSWERSModel that assumes uniform co2 distribution vertically, big transition zone
Fractional flow model - ANSWERSModel where capillary forces are dominant, neglect viscous and gravity
Fractional flow model - ANSWERSModel type with low vertical permeability
Interface model - ANSWERSModel with thick reservoir with high permeability.
Interface model - ANSWERSModel where capillary force is neglected and gravity is dominant
Interface model - ANSWERSModel used in high permeability or thick reservoirs
True - ANSWERSIrreducible water saturation is not displaced in IM model, dry out is not considered.
True - ANSWERSViscous forces are neglected in vertical direction of IM model
True (co2 w interface model travels way farther dist horizontally) (% pores in contact w co2 is higher) -
ANSWERSStorage efficiency is higher for IM model
False (IM has less dissolved co2) - ANSWERSFraction of dissolved co2 would be higher using IM than
FFM?
, True - ANSWERSRadius of co2 plume is greater with IM model
True - ANSWERST or F? Gravity helps co2 rise so Rmax is greater than 2M and Rmin is less that M/2
True (but we still recalculate with gamma for increased accuracy) - ANSWERSGravity can be neglected if
gamma < 1
True - ANSWERSLagrange multiplier can only be used with gamma is less than 1 (gravity can be neglected
but we don't neglect it)
Okwen's correlation - ANSWERSCorrelation used when gamma > 1 (Lagrange multiplier no longer valid)
False - ANSWERSHigh capacity means high injectivity
True - ANSWERSTemperature plume is behind co2 plume. Co2 plume is behind pressure plume
True - ANSWERSEarly co2 injectivity and spread is determined by pressure buildup corresponding to
transient flow
Open boundary system - ANSWERSSystem where mass leaving aq = mass co2 injected in
Open boundary system - ANSWERSInjection into this system leads to steady state (pressure indep of
time) after boundary is reached
Open boundary - ANSWERSArea of review determined by co2 plume NOT pressure plume in this system
No, high perm doesn't extend infinitely, eventually the heterogeneity becomes important (pressure can't
dissipate) - ANSWERSAre 100% open systems possible? Why?
Closed boundary system - ANSWERSA system where aquifer boundary blocks flow. No pressure
dissipation beyond aquifer so press builds up
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