Difference between revisions of "VRR"
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[[VRR]] stands for voidage replacement ratio. It is the ratio of injected fluid to produced fluid at the reservoir conditions. | [[VRR]] stands for voidage replacement ratio. It is the ratio of injected fluid to produced fluid at the reservoir conditions. | ||
| + | [[VRR]] is calculated with the current rates and on the cumulative basis '''VRRcum'''. | ||
===Equation=== | ===Equation=== | ||
Revision as of 14:13, 23 March 2022
Brief
VRR stands for voidage replacement ratio. It is the ratio of injected fluid to produced fluid at the reservoir conditions. VRR is calculated with the current rates and on the cumulative basis VRRcum.
Equation
where
= Gas formation volume factor, m3/m3
= Injected gas formation volume factor, m3/m3
= Injected water formation volume factor, m3/m3
= Produced water formation volume factor, m3/m3
= Oil formation volume factor, m3/m3
= Produced gas oil ratio, m3/m3
= Injected gas volume, m3
= Oil produced, m3
= Solution gas oil ratio, m3/m3
= Voidage replacement ratio, fraction
= Water injected, m3
= Water produced, m3
Related definitions
Pore volume:
Movable pore volume:
where
= Connate water saturation, fraction
= Residual oil saturation, fraction
See Also
