Difference between revisions of "VRR"
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:<math> B_{g} </math> = Gas formation volume factor, m3/m3 | :<math> B_{g} </math> = Gas formation volume factor, m3/m3 | ||
| − | :<math> B_{ginj} </math> = Injected gas formation volume factor, m3/m3 | + | :<math> B_{ginj} </math> = Injected gas formation volume factor at reservoir pressure, m3/m3 |
:<math> B_{wi} </math> = Injected water formation volume factor, m3/m3 | :<math> B_{wi} </math> = Injected water formation volume factor, m3/m3 | ||
:<math> B_{wp} </math> = Produced water formation volume factor, m3/m3 | :<math> B_{wp} </math> = Produced water formation volume factor, m3/m3 | ||
Revision as of 14:18, 23 March 2022
Contents
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 at reservoir pressure, 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
