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- OPR – Outflow Performance Relation ( also called TPR – Tubing Performance Relation and VFP – Vertical Lift Performance ) – responsible for well deliverability (see below )
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The intersection of WFP – Well Flow Performance and OPR curves represent the stabilized flow (see Fig. 1)
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| Fig. 1. The stablised flow rate is represnted as junction point of WFP – Well Flow Performance and OPR curves. |
Given a tubing heas dpressure the WFM junction point is dynamic in time and depends on the current formation npressure and formation saturation.
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IPR – Inflow Performance Relationship
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