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DYNA
versión impresa ISSN 0012-7353versión On-line ISSN 2346-2183
Resumen
ESCOBAR, Freddy Humberto; NAVIA, José Jafet y SUESCUN-DIAZ, Daniel. Pressure and pressure derivative interpretation of a well in a completed-perforated multilayer reservoir with crossflow. Dyna rev.fac.nac.minas [online]. 2021, vol.88, n.219, pp.94-101. Epub 15-Mar-2022. ISSN 0012-7353. https://doi.org/10.15446/dyna.v88n219.97439.
Various authors have introduced several models for the characterization of multilayer reservoirs. However, some have failed to provide results when the skin factor of the layers is negative. Therefore, in this work, a model applying the concept of the maximum effective hole diameter has been used to simulate pressure tests in multilayer reservoirs. The pressure behavior of such systems is similar to that of naturally fractured double porosity reservoirs. Then, using the unique features of the log-log plot of pressure and pressure derivative versus time, some expressions have been developed to characterize the reservoir. The equations are satisfactorily tested on three field examples. In this way, a more precise reservoir characterization would be achieved, which will imply better reservoir management.
Palabras clave : interporosity flow parameter; TDS (Tiab´s Direct Synthesis) technique; storativity coefficient; semipermeability.