...
| for oil producer with liquid flowrate
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| for gas producer with gas flowrate
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| for gas injector with gas flowrate | |||||||||||
| for water injector with water flowrate
|
where
| field-average formation pressure within the drainage area
|
Based on these notions the general WFP – Well Flow Performance can be wirtten in universal form:
...
It can be interpreted as deterioration of near-reservoir zone permeability when the fluid velocity is high and modelled as rate-dependant skin-factor.
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Fig. 3. WFP – Well Flow Performance for 2-phase oil+gas production below and above bubble point |
For 3-phase water-oil-gas flow the IPR analysis is perfomed on oil and watr components (see Fig. 4.1 and Fig. 4.2).
|
|
Fig. 4.1. Oil WFP – Well Flow Performance for 3-phase (water + oil + gas) formation flow | Fig. 4.2. Water WFP – Well Flow Performance for 3-phase (water + oil + gas) formation flow |
| Note | ||||||||
|---|---|---|---|---|---|---|---|---|
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