A mathematical adaptation of the Vogel correlation was developed to obtain the drainage-area average pressure (P̄) 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.

Keywords:
drainage-area average pressure, productivity index, spe 76719, equation, application, medina parra, drillstem/well testing, society of petroleum engineers, upstream oil & gas, intercept
Subjects:
Formation Evaluation & Management, Drillstem/well testing
Copyright 2002, Society of Petroleum Engineers
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