A mathematical adaptation of the Vogel correlation was developed to obtain the drainage-area average pressure () and the skin factor (s) values from multi-stabilized-rate (flow-after-flow) tests data. A methodology is presented to smooth, validate and compute the data of these tests. The analysis of a theoretical example is presented to show the application of the methodology. The proposed graphic method Pwf vs. J contributes to verify the applicability of Vogel model to a specific data set.

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